U.S. patent application number 11/813897 was filed with the patent office on 2008-08-21 for outdoor equipment.
This patent application is currently assigned to NEMO Equipment, Inc.. Invention is credited to Cam Brensinger.
Application Number | 20080199336 11/813897 |
Document ID | / |
Family ID | 37053837 |
Filed Date | 2008-08-21 |
United States Patent
Application |
20080199336 |
Kind Code |
A1 |
Brensinger; Cam |
August 21, 2008 |
Outdoor Equipment
Abstract
A lightweight, collapsible foot pump made of a lightweight,
collapsible material and filled with a foam like material which
features large open cells to contain a large volume of air. The
foam acting as a return spring for the pump.
Inventors: |
Brensinger; Cam; (Nashua,
NH) |
Correspondence
Address: |
BOURQUE & ASSOCIATES;INTELLECTUAL PROPERTY ATTORNEYS, P.A.
835 HANOVER STREET, SUITE 301
MANCHESTER
NH
03104
US
|
Assignee: |
NEMO Equipment, Inc.
Nashua
NH
|
Family ID: |
37053837 |
Appl. No.: |
11/813897 |
Filed: |
February 3, 2006 |
PCT Filed: |
February 3, 2006 |
PCT NO: |
PCT/US06/03787 |
371 Date: |
April 1, 2008 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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60650245 |
Feb 4, 2005 |
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60733740 |
Nov 4, 2005 |
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Current U.S.
Class: |
417/472 ;
135/114; 135/115; 135/118; 135/124; 135/91; 30/308.1 |
Current CPC
Class: |
A63B 29/025 20130101;
E04H 15/48 20130101; F04B 33/00 20130101; E04H 15/008 20130101;
E04H 15/20 20130101; E04H 15/40 20130101; A63B 29/02 20130101; E04H
2015/201 20130101 |
Class at
Publication: |
417/472 ;
135/124; 135/115; 135/118; 30/308.1; 135/91; 135/114 |
International
Class: |
F04B 43/00 20060101
F04B043/00; E04H 15/36 20060101 E04H015/36; E04H 15/54 20060101
E04H015/54; E04H 15/62 20060101 E04H015/62; A63B 29/08 20060101
A63B029/08; E04H 15/14 20060101 E04H015/14; E04H 15/60 20060101
E04H015/60 |
Claims
1. A light weight, collapsible air pump, comprising: an air pump
enclosure made of a light weight, collapsible material and defining
an interior region; a collapsible and expandable material generally
filling said interior region, and adapted to contain a significant
amount of air, said collapsible and expandable material serving as
a spring for expanding said enclosure after it has been collapsed;
a fill a valve for allowing a air to quickly enter said interior
region of said air pump enclosure when said air pump enclosure
moves from a collapsed position to an expanded position; and an air
delivery port, fluidly coupled to said interior region of said air
pump enclosure, for delivering air to an attached device when said
air pump enclosure is collapsed.
2. The air pump of claim 1 wherein said collapsible and expandable
material generally filling said interior region of said air pump
enclosure includes foam.
3. The air pump of claim 1 wherein said air pump enclosure includes
a bellows shaped fabric structure.
4. A hard shell tent comprising: a first tent half and a second
tent half, said first tent half attached to said second tent half
proximit one a region of the circumference of both said first and
second tent half; first and second regions of said circumference of
both said first and second tent halves proximate and extending from
said attachment point each including a first and second tent half
joining devices; each of said first and second tent halves
comprising first and second tent quarters, each first and second
tent quarter coupled approximate one edge by a soft, flexible
material, for allowing said first-quarter to fold onto said second
quarter, and for said first half to fold on to said second
half.
5. The hard shell tent of claim 4 wherein each tenant half has an
elliptical shape.
6. The hard shell tent of claim 4 wherein said tent half joining
devices include zippers.
7. A tube like shelter comprising: a spiral spring-like frame
structure, said spiral spring-like frame structure in the shape of
the tube defining first and second openings; and a flexible and
collapsible fabric material covering said spiral, spring-like frame
structure, for defining a tube having at least a first opening to
be used as a shelter.
8. A tent tie down loop comprising: A loop member having a first
and a second end, said loop member divided into first and second
sections, said first section being substantially larger than said
second section, said first end of said first section attached to a
tenant and comprised of a web like material; and said second
section formed of a weblike material forming a small pocket through
which may be inserted in object to assist in holding down the tent,
said weblike material of said second section formed with a twist so
as to better engage with said object inserted therein.
9. An ice screw comprising: Said ice screw comprising a shank
portion and a handle portion; and A mechanism for releasably
coupling said handle portion to said shank portion, for allowing
said handle portion to be repositioned vis-a-vis the axis of said
shank portion so as to allow the user to rotate said handle portion
and said shank portion and to releasably disengage said handle
portion from said shank portion for reorienting said handle portion
vis-a-vis the shank portion.
10. The ice screw of claim 9 wherein said mechanism includes a
slide actuated switch.
11. The ice screw of claim 9 wherein said mechanism includes a
ratchet mechanism.
12. A mountaineering tool comprising: a head portion pivotably
attached to a first end of a first shank portion; a second shank
portion pivotably coupled proximate a first end to a second end of
said first shank portion; and a handle portion pivotably coupled to
a second end of said second shank portion.
13. The mountaineering tool of claim 12 wherein said head portion
includes an ice pick.
14. A tent comprising: a tent wall having a first portion and a
second portion, said first portion including a region overlapping a
corresponding region of said second portion; and a strut mechanism,
attached to one of said first or second portions, for maintaining
an air ventilation space between said first portion and said second
portion of said tent wall.
15. A pivotable tent pole comprising: a first tent pole having a
first and coupled to a tent pole pivoting device; and a second tent
pole having a first end coupled to said tent pole pivoting device,
for allowing said first and second tent poles to pivot proximate
their first ends relative to one another while maintaining said
first and second tent poles in a fixed spaced relationship.
16. A tent comprising: a tent material for forming a tent shelter,
said tent material including at least one tent pole receiving
pocket, for receiving a generally rigid tent pole for forming an
opening in said tent material.
17. The tent of claim 16 wherein said tent material includes a
plurality of tent pole receiving sockets, for receiving a plurality
of generally rigid tent poles.
Description
TECHNICAL FIELD
[0001] The present invention relates to outdoor equipment and more
particularly, relates to outdoor equipment such as tents, ice axes,
inflatable tent stiffening members and foot pumps.
BACKGROUND INFORMATION
[0002] Outdoor enthusiasts are more prevalent today than in years
past. More and more people are taking to the outdoors and taking
part in various outdoor activities including, but not limited to,
camping, bicycling, ice climbing, rock climbing and the like.
Invariably, these people require equipment to partake in their
selected sport. Most of these individuals are demanding strong,
lightweight, and easy to use outdoor gear. Indeed in many sports,
such as rock climbing or ice climbing, much of the outdoor
equipment is the only thing as standing between life and death.
Failure of the outdoor equipment can have devastating consequences.
Accordingly, there is a need for high quality, easy to use, strong
and lightweight outdoor equipment.
[0003] It is important to note that the present invention is not
intended to be limited to a device or method which must satisfy one
or more of any stated or implied objects or features of the
invention. It is also important to note that the present invention
is not limited to the preferred, exemplary, or primary
embodiment(s) described herein. Modifications and substitutions by
one of ordinary skill in the art are considered to be within the
scope of the present invention, which is not to be limited except
by the following claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] These and other features and advantages of the present
invention will be better understood by reading the following
detailed description, taken together with the drawings wherein:
[0005] FIG. 1 is a schematic diagram of a foam filled the fabric
pump according to one aspect of the present invention;
[0006] FIG. 2 is a schematic diagram illustrating the construction
of the foam a filled the fabric pump of the present invention;
[0007] FIG. 3 is an exploded diagram of a fill and dump valve in
accordance with one aspect of the present invention;
[0008] FIGS. 4A-4E are schematic diagrams illustrating a hard or
solid wall tent in accordance with one feature of the present
invention and show how the tent would be disassembled and rolled
into a carrying sack;
[0009] FIG. 5 is a schematic diagram illustrating the hard wall
tent of the present invention during the first stage of disassembly
or last stage of assembly;
[0010] FIG. 6 is a schematic diagram illustrating the hard wall
tent of the present invention and yet a further stage of assembly
or disassembly;
[0011] FIG. 7 is yet another schematic illustration of the hard
wall tent of the present invention and other stage of disassembly
or assembly;
[0012] FIG. 8 is a schematic diagram of the hard wall tent of the
present invention fully assembled illustrating a door allowing
access to the interior of the tent;
[0013] FIG. 9 is a schematic diagram illustrating the hard wall
tent of the present invention rolled up and stored in the stuff
sack for easy storing and carrying;
[0014] FIG. 10 is a schematic diagram of a fabric covered spring
tube tent in accordance with one feature of the present
invention;
[0015] FIG. 11 is a side view of the fabric covered spring tube
tent of FIG. 10 in the collapsed condition;
[0016] FIG. 12 the fabric covered spring to a tent of the present
invention in use;
[0017] FIG. 13 is a schematic view of a hard surface hold down
device according to yet another feature of the present
invention;
[0018] FIG. 14 is a schematic review of the hard surface hold down
device of FIG. 12 upon which a rock, log or other device has been
placed;
[0019] FIG. 15 is a schematic diagram all of an ice screw in
accordance with the present invention having a sliding knob which
engages the ice screw handle with the ice screw shaft;
[0020] FIG. 16 is a schematic diagram of another embodiment of an
ice screw in accordance with the present invention which utilizes a
ratchet mechanism to engage the handle with the ice screw
shaft;
[0021] FIG. 17 is a side view of another embodiment of the ice
screw according to the present invention;
[0022] FIG. 18 is side view of one embodiment of the tubular body
of the ice screw shown in FIG. 17 according to one embodiment of
the present invention;
[0023] FIG. 19 is a plan view of one embodiment of the
handle/hanger and the moveable clip of the ice screw shown in FIG.
17 according to one embodiment of the present invention;
[0024] FIG. 20 is an isometric view of one embodiment of the
handle/hanger shown in FIG. 17 according to one embodiment of the
present invention;
[0025] FIG. 21 is a plan view of one embodiment of the
handle/hanger and the moveable clip of the ice screw shown in FIG.
17 according to one embodiment of the present invention;
[0026] FIG. 22 is a side view of the ice screw shown in FIG.
21;
[0027] FIG. 23 is an isometric view of one embodiment of the
moveable clip according to one embodiment of the present
invention;
[0028] FIG. 24 is a side view of one embodiment of the moveable
clip shown in FIG. 19;
[0029] FIG. 25 is an isometric view of one embodiment of the
moveable clip according to one embodiment of the present
invention.
[0030] FIG. 26 is a schematic diagram of an adjustable ax and pick
in accordance with the other another embodiment of the present
invention;
[0031] FIG. 27 is a side perspective view of one embodiment of the
adjustable axe according to the present invention;
[0032] FIG. 28 is a top perspective view of the adjustable axe
shown in FIG. 27 according to one embodiment of the present
invention.
[0033] FIG. 29 is a schematic diagram of a tent having an
overlapping top door portion which takes the place of the
vestibule;
[0034] FIG. 30 is a schematic drawing of the user entering the tent
of FIG. 18 having an overlapping top door portion;
[0035] FIG. 31 is a schematic diagram of a tent having generally
permanently attached hinged poles in accordance with one feature of
the present invention;
[0036] FIG. 32 is a schematic diagram of another type of tent
having generally permanently attached hinged poles in accordance
with one feature of the present invention;
[0037] FIG. 33 is a schematic diagram of a dual axis hinge in
accordance with one aspect of the present invention;
[0038] FIG. 34 is a schematic diagram showing the dual axis hinge
of FIG. 33;
[0039] FIG. 35 is a schematic diagram of a single axis hinge
according to another feature of the present invention;
[0040] FIG. 36 is a schematic diagram of a tent having rigid poles
sewn into sleeves or pockets of a tent;
[0041] FIG. 37 illustrates a tent ready to be folded having a
combination of sewn in and hinged poles in accordance with one
feature of the present invention; and
[0042] FIG. 38 is a schematic diagram of a tent having an improved
air beam suspension in accordance with one feature of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0043] Many new tent designs are now utilizing their bladders as
support structures for the tent. Unfortunately, however, the human
lung cannot provide enough pressure to appropriately inflate the
tent bladder. Accordingly, a pump of some sort must be used to in
effect amplifier the long pressure. Since the lungs can only
comfortably provide approximately one half pounds of pressure, 4 or
5 pounds are required to properly fill a tent bladder.
[0044] FIG. 1 illustrates a foot pump 10 in accordance with one
feature of the present invention. The foot pump is made of a
lightweight collapsible material, such as urethane coated fabric 12
and is filled with reticulated foam 14. The fabric material 12 this
selected such that it can be easily assembled such as by sewing,
gluing, RF welding and the like. The foam features very large open
cells and contains approximately 97% air. The foam acts as the
return spring for the pump 10. The pump 10 can easily be stored in
the tent itself or placed into a stuff sack and carried to remote
locations.
[0045] The preferred embodiment of the pump 10 includes a number of
bellows or sections 16. Although in the preferred embodiment
includes three sections 16, this is not a limitation of the present
invention as one or more sections will suffice. The bellows prevent
its upward deflection of the competent 10 wherein compressed. This
assures that all of the air found in the bellows will be
transferred out of the bellows.
[0046] In order to effectively use the pump of the present
invention, a valve 18 must be provided which serves the function of
allowing the bellows to quickly fill with air. The filling with air
must be nearly instantaneous otherwise the user will have to wait
an inordinate amount of time for the bellows to refill before the
air can be squeezed or compressed out of the pump again.
[0047] Accordingly, the present invention solves this problem by
providing a unique valve 18. As shown in greater detail in FIG. 3,
the valve 18 includes a traditional quick dump valve 20 such as
available from Hulkey Roberts as dump valve 650AD combined with the
valve segment 22 which forms a check valve. The umbrella valve
segment 22, such as available from the Vernay company, interfaces
with valve platform 24. The tip or protrusion 26 of the valve
segment 22 is inserted into opening 28 of the valve platform 24.
Lastly, a semi-rigid ring 30 is provided against the bottom region
34 of the fabric material 32 to which the valve 18 is mounted.
[0048] To assemble a valve 18 of the present invention, the dump
valve 20 is RF welded or otherwise attached to the top surface 36
of the fabric or other material 32 to which the valve 18 is
mounted. Next, the umbrella valve segment 22 is mated with the
valve platform 24. Finally, a semi rigid ring 30 having
approximately the same as or slightly greater diameter than the
valve 22 is provided and RF welded or otherwise attached to the
under surface 34 of the fabric or other material 32 to which the
valve 18 is attached. The semi rigid ring 30 serves to make sure
that the fabric 32 remains open in the area of the valve 18 to be
sure that the air can easily enter the valve 18 which serves as the
refill valve. The valve support number 24 and the ring 30 are
typically die cut pieces from sheet urethane or other similar
material. Accordingly, the valve 18 allows the air to be squeezed
out of the bellows into a tube or other similar device 38, FIG. 1,
while the valve number 22 prevents the air from escaping the valve
18 when the bellows 12 are compressed.
[0049] When mountaineering, particularly in extreme weather
conditions, individuals are either reluctant to use or wish there
was an alternative to fabric tents. This is because the fabric
tends to blow apart, particularly in a situation with wind-driven
snow. The snow acts as an abrasive and actually wears away the
fabric. The failed tent could spell disaster or death for its
inhabitants. Accordingly, many of the individuals who participate
in mountaineering and other severe weather climbing activities
desire to have a more stable tent. However, such tent must be easy
to pack into remote locations.
[0050] Accordingly, the present invention features, in accordance
with one aspect of the invention, a hard shell or solid wall tent
50, FIG. 4A. The tent is comprised of two halves namely, first-half
52 and second-half 54. Each half 52 and 54 includes two zippered
regions 56 and 58. In addition, both halves are permanently
attached proximate region 60.
[0051] Each half 52 and 54 are each further comprised of two
quarters 62, 64. Each quarter 62, 64 are permanently attached
together by a piece of fabric or webbing 66. The fabric or webbing
66 is sewn across the two quarters 62, 64 by first overlapping the
two quarters 62, 64 as shown in the exploded view of FIG. 4B1,
falling which the webbing or fabric 66 is placed. By using this
construction, the two quarters 62 and 64 may only be folded up in
one direction as indicated by arrow 68. The webbing can be any type
of material that is lightweight, strong, and resists tearing. The
material may be any suitable width. The webbing 66 forms a hinge
for the two quarters 62, 64.
[0052] As shown in FIG. 4C, each quarters 62 and 64 are then folded
up upon or on top of one another. Lastly, as shown in FIG. 4D, the
two folded halves are folded again on top of one another and may
then be rolled along their length in the direction indicated
generally by arrow 74, before being stored in a storage sack as
shown in FIG. 4E.
[0053] In the preferred embodiment, the hard or solid wall tent 50
is made of corrugated plastic, approximately 1/16'' thick.
High-density polyethylene or similar product would be appropriate.
The corrugations are arranged across the width of the quarters as
shown in FIG. 5. In addition, a thin layer of foam may be laminated
to the interior region of the tent quarters to serve as insulation.
The quarters may also have prevents installed for venting the
interior of the tent. With a hard shell tent such as described
herein, the user can set up the tent in a freestanding format or
set up the tent and shovel snow against the sides for additional
insulation and protection against the wind. The hard shell tent 50
of the present invention may be made of a dark colored material to
help make the interior dark and easier to sleep in during the
daylight hours or in conditions wherein the sun does not set,
thereby facilitating sleeping. The tent is quieter than fabric
tents, and wind will not cause the sides to flap.
[0054] Another feature of the hard shell tent of the present
invention is that each individual quarter panel has a tendency to
roll up on itself because it is made of a thin sheet of corrugated
plastic. Accordingly, by simply releasing one of the zippers 56
that hold the two halves together and one of the zippers 57 that
attach to the fabric floor 59, one end of the half that has been in
zippered has a tendency to roll up on itself as shown in FIG. 8,
thereby automatically creating an opening to the interior of the
tent.
[0055] One additional feature of the hard shell tent of the present
invention is its ease of rolling up and placing it in a stuff sack
for easy transportation, FIG. 9.
[0056] Another feature of the present invention is a fabric covered
spring "tube like" tent which can serve as an emergency "shelter"
for hikers or other outdoor enthusiasts. Individuals wanting to
take shelter often build a snow cave or shelter. In order to do so,
they have to dig out a hole in the snow. The user gets wet which
exposes them to a serious risk of hypothermia. In order to solve
this problem, the present invention features a fabric covered
coiled spring structure 80, FIG. 10, which can be used to form a
tent. According to this aspect of the invention, this spring is a
sufficient diameter to allow a user to crawl into the opening 82
formed in one end of the structure 80. The other end of the
structure 84 is covered with fabric.
[0057] In use, a user simply stretches out the fabric covered
spring structure and covers or buries it in snow, FIG. 12. This
activity does not force the user to crawl inside a snow cave
thereby getting wet. The fabric covering 86 is of a type to be
strong, lightweight and preferably waterproof or at least water
resistant. The side of the tent may include one or more tie downs
or anchor straps 88 which serve to keep the structure 80 in place.
Like all tents, the structure may include one or more air vents 89
as well as a drawstring entrance cover 90. When not in use, the
structure 80 of the present invention is simply collapsed like the
bellows of an accordion into a thin package as shown in FIG. 11.
This package may then be easily stored in a backpack or stuff sack,
taking up minimal space.
[0058] Mountaineering and rock climbing activities often find the
outdoor enthusiast having to set up a tent on a hard, stone
surface. It is not possible to drive a tent stake into such a hard
surface. Using traditional tent loops provided on the tent does not
give the user enough surface area or mass to anchor the tent using
another object such as a stone or rock placed on the typical tent
stake loop. Accordingly, yet another feature of the present
invention includes a tent anchoring loop having a second and
smaller loop 90, FIG. 13, proximate the far end of the tent stake
loop 92 away from the tent or other structure to be anchored 94.
The smaller loop 90 of the present invention preferably includes
one "twist" in the fabric which forms the loop.
[0059] In use, a user simply places a traditional tent stake 96 the
into the small loop 90. The twist in the loop fabric helps to hold
the stake 96 in place, providing some "resistance" for the stake 96
thereby preventing it from sliding out. The user may then place a
rock, log or other structure 98, FIG. 14, on top of the stake 90,
thereby relatively securely holding down the tent 94 or other
similar structure.
[0060] In recent years, ice climbing has become increasingly
popular. An important piece of protective equipment when ice
climbing is the ice screw. The ice screw is a hollow, externally
threaded tube with sharp teeth on one end and a handle on the
other. The ice screw is inserted into the body of ice by the
climber to help prevent the climber from hitting the ground during
a fall. The placement of ice screws is essential for safety, but
very strenuous during the climb and made worse by the possibility
of dropping an ice screw during its placement.
[0061] Improvements in ice screw design have been focused mainly on
methods of carrying the screws when they are not in use, and on
efficiently screwing them into the ice after the threads have been
started. The major shortcoming of the known designs is in the
method of getting the screw started in the ice. The known designs
are difficult to get started in the ice and easily dropped during
the process. Typically, the climber will have only one hand free to
remove the ice screw from their harness, to get it started in the
ice, to turn the screw until it is fully inserted and finally to
attach the carabiner and rope. Getting the screw started in the ice
with only one hand is a tenuous operation. In conventional designs,
it is necessary to let go of the screw while turning it in order to
reposition the hand. This repositioning makes it hard to maintain
the angle of the screw. If the screw wobbles, it tends to damage
the ice and prevent the threads from engaging. Not only does
repositioning the hand make it harder to get the screw started, it
also increases the likelihood of dropping a screw. Because the ice
screws are heavy and bulky, a climber does not carry many extras,
so dropping even one screw can significantly compromise the
climber's safety.
[0062] Accordingly, what is needed is a device that facilitates
inserting an ice screw into the body of ice. The device should be
easily screwed in place with one hand and should allow the user to
continue to rotate the ice screw without having to let go of the
ice screw to reposition his hand. As can be appreciated, the weight
of the device should also be minimized in order to reduce the
amount the climber must carry. Finally, the device must be strong
and durable and capable of operating reliably, without maintenance
in the extreme weather conditions present during ice climbing.
[0063] Accordingly, and another feature the present invention is an
ice screw having a handle which can engage and disengage from the
ice screw shaft without the user having to release the lateral
pressure on the ice screw shaft itself. In one embodiment of the
ice screw 100, FIG. 15 in accordance with the present invention,
the invention features a spring loaded sliding tab 102 having a
front engagement region 104 which interfaces with a corresponding
engagement region 106 on the ice screw shaft 108. The ice screw
shaft 108 includes, proximate the distal end, a number of regions
106 with which the tab 102 may engage.
[0064] In use, the user holds handle 110 and rotates the ice screw
clockwise until user's hand can no longer turn the ice screw. Then,
while continuing to apply for pressure on the ice screw, the user
holds back sliding tab 102 which disengages the handle from the
shaft 108. The use of and rotates the handle counterclockwise,
releases the sliding tab 102 which snaps into place with one or
more engagement regions 106 on the shaft 108. The user then turns
the handle clockwise to further set the ice screw. This
release/engagement movement is continued until the ice screw is set
to the proper depth.
[0065] In another embodiment shown in FIG. 16, the ice screw 100
may include any ratchet type mechanism 112 such as found on a
socket wrench. The user simply rotates his or her hand clockwise
while keeping lateral pressure on the ice screw in the direction
indicated generally by arrow 113. To take the ice screw out of the
ice, the user simply the presses or moves button 114 to allow the
ratchet mechanism 112 to work in reverse, again, much like a
standard socket wrench.
[0066] According to another embodiment of the ice screw, the
present invention features an ice screw 210, FIG. 17, that is
lightweight, strong and durable, and which facilitates the
insertion of the ice screw 210 into a body of ice (not shown)
without requiring the user to lessen or remove his hand from the
ice screw 210. The ice screw 210 features a generally hollow and
tubular body 212, a hanger/handle 213, and a ratcheting device 215.
As will be explained in greater detail hereinbelow, the climber
grasps the hanger/handle 213 with his hand, pushes and rotates the
tubular body 212 into the body of ice, and uses the ratcheting
device 215 to reposition his hand so as to push and twist again
without having to release and regrasp the ice screw 210.
[0067] The tubular body 212 features an externally threaded region
214 disposed proximate at least a first end 216. The first end 216
also features a toothed region 218 to aid in cutting through the
body of ice. As best seen in FIG. 18, the second end 220 of the
tubular body 212 features a head 222. The head 222 includes an
upper and lower generally circular flange 224, 226. Both the upper
and lower flange 224, 226 extend generally outward and normal to
the tubular body 212. In the preferred embodiment, the upper flange
224 extends outwardly slightly further than the lower flange 226,
though the lower flange 226 could be larger than the upper flange
224 or the upper and lower flange 224, 226 could be substantially
the same size. For exemplary purposes only, the standard diameter
of the tubular body 212 in the industry has become approximately
16.5mm. A common minimum diameter for the flanges 224, 226 might be
18.5mm. Disposed between the upper and lower flange 224, 226 is a
multifaceted region 228. For exemplary purposes only, the
multifaceted region 228 forms a hexagonal shape. As will be evident
from the following description, the number of faces and arrangement
of the multifaceted region 228 can vary and is within the knowledge
of one ordinary skill in the art.
[0068] Referring to FIGS. 17 and 19-22, the hanger/handle 213
extends generally outwardly from the tubular body 212. As can be
best seen in FIG. 22, the hanger/handle 213 preferably extends
slightly upwards and away from the second end region 220 of the
tubular body 212. This hanger/handle arrangement increases the
clearance between the hanger/handle 213 and the body of the ice
when the screw is being placed. Alternatively, the hanger/handle
213 may extend generally perpendicular to the tubular body 212.
[0069] The hanger/handle 213 also features a body 232. In the
preferred embodiment, the body 232 includes a substantially
horizontal section 233, a planar section 235, and a substantially
vertical section 237. Other arrangements and shapes are possible
and are within the knowledge of one of ordinary skill in the
art.
[0070] The body 232 includes at least one eye 230, preferably
disposed in the substantially vertical section 237, though this is
not a limitation of the present invention unless otherwise
specifically claimed as such. The eye 230 allows the climber to
secure a carabiner (not shown) to the ice screw 210 as is well
known to those skilled in the art.
[0071] The body 232 also features an aperture 234, preferably
disposed in the substantially horizontal section 233. The aperture
234 is sized and shaped to fit around the multifaceted region 228
of the head 222 and allow the multifaceted region 228 to rotate as
will be explained in greater detail hereinbelow.
[0072] Additionally, the aperture 234 is smaller than the upper
flange 224 such that the hanger/handle 213 cannot be removed from
the end region 220. During the assembly of the ice screw 210, the
tubular body 212 is inserted through the aperture 234 of the
handle/hanger 213 first and then the moveable clip 250 is inserted
through the channels 240 on the handle/hanger 213. In one
embodiment, the tabs 266 on the moveable clip 250 are folded
downwards to prevent its removal. Other embodiments are discussed
hereinbelow. The openings 256, 258 in the moveable clip 250 are
smaller than the lower flange 226, thereby securing the entire
assembly.
[0073] The body 232 also features at least one, and preferably two,
channels or slots 240. The channels or slots 240 are preferably
disposed on a bottom surface 241 of the substantially horizontal
section 233 proximate the aperture 234. Alternatively, the channels
or slots 240 may be disposed about the top surface 243 of the body
232. The channels or slots 240 are sized and shaped to accept at
least a portion of a moveable clip 250 and serve to guide and
retain the moveable clip 250.
[0074] The ratcheting device 215 includes any device known to those
skilled in the art for allowing the handle/hanger 213 to rotate the
tubular body 212 in a first direction while allowing the
handle/hanger 213 to rotate freely in a second direction without
causing the tubular body 212 to rotate in the second direction. In
the preferred embodiment, the ratcheting device 215 features a
moveable clip 250, FIGS. 17, 19, and 20-25, as mentioned above
which is sized and shaped to at least partially fit within the
channels or slots 240 of the handle/hanger 213. The moveable clip
250 includes a cavity 252 having a first region 254 sized and
shaped to rotate freely about the head 222 of the tubular body 212
and a second region 256 sized and shaped to engage the multifaceted
surface 228 of the head 222.
[0075] In the preferred embodiment, the second region 256 is
located proximate an opening 258 formed by two legs 265 in the in
the moveable clip 250. The two legs 265 preferably include a tab
266 extending either generally upwards or downwards. The tabs 266
prevent the moveable clip 250 from becoming separated from the
tubular body 212. Alternatively, the moveable clip 250 may include
pins in place of the tabs 266 or other arrangements or shapes which
prevent the moveable clip 250 from becoming separated.
[0076] In the exemplary embodiment, the moveable clip 250 slides
within the channels or slots 240 of the handle/hanger 213 between a
first and at least a second position. In the first position, the
first region 254 of the moveable clip 250 is substantially
concentric about the longitudinal axis A of the tubular body 212.
In this first position, the handle/hanger 213 may rotate freely
about the head 222 of the tubular body 212. A biasing device 280
(preferably a spring or the like that engages apertures 281 in the
moveable clip 250 and the handle/hanger 213) is disposed between
the moveable clip 250 and the handle/hanger 213 and urges the
moveable clip 250 towards the second position wherein the second
region 256 is substantially aligned with the tubular body 212. In
this second position, the second region 256 engages the
multifaceted surface 228 of the head 222 such that position of the
handle/hanger 213 and the tubular body 212 are substantially locked
together. As a result, movement of the handle/hanger 213 in at
least a first direction causes the tubular body 212 to rotate. It
is important to note that the biasing device 280 preferably biases
the moveable clip 250 towards the second position, i.e., the
failsafe position. It is possible, however, to having the biasing
device 280 urge the moveable clip 250 towards the first
position.
[0077] The moveable clip 250 also preferably features a lip 62. As
can be best seen in FIG. 17, the lip 262 extends over at least a
portion of the top surface 243 of the handle/hanger 213. The lip
262 provides and area for the climber to press against to move the
moveable clip 250 from the second position to the first position.
Additionally, the lip 262 aids in preventing debris and the like
(such as snow, ice, and water) from entering into the ratcheting
device 215.
[0078] It is important to note that while the present invention has
been described above having a ratcheting device 215 featuring a
moveable clip 250, this is only for illustrative purposes and to
satisfy the best mode requirement. The present invention also
includes any device or mechanism that allows the tubular body 212
of the ice screw 210 to rotate in one direction when the
handle/hanger 213 is rotated while staying substantially motionless
when the handle/hanger 213 is rotated in a second direction. For
example, but not limited to, the ratcheting device 215 may also
include a ratcheting pawl, a chuck, a clutch, or the like.
[0079] Another feature of the present invention relates to ice
axes. Those who practice the sport of ice or rock climbing utilize
an ax or pick, both as an aid to climb the face of an ice cliff or
rock face, and at other times as a device from which to hang or
support themselves while inserting an ice screw or other device
into the face being climbed. In practical use, the ax and pick both
have different requirements. In some instances, it is desired to
have the handle and pick nearly parallel, as this makes it easy to
use the device to hang from. In contrast, an ax works better when
the head is approximately perpendicular to the handle. In the prior
art, climbers have generally had to carry both a pick and an ax.
These climbing tools are very expensive and heavy to bring along on
a complicated or difficult climb. Accordingly, it would be
desirable to have one device which is adjustable to suit both
purposes.
[0080] In accordance with another aspect of the present invention,
a tool 350, FIG. 26, is provided which is adjustable to serve both
as a pick and an axe. In accordance with this aspect of the present
invention, the handle indicated generally by 360, includes two
segments 362-364 along with a handle grip segment 366. The first
and second handle segments 362, 364 are connected by an adjustable
joint 368. The adjustable joint 368 is made by providing one face
each of the handle segments 362 and 364 with a knurled surface. The
two neural surfaces are held together tightly by both 369 securely
connecting the two pieces together at the desired articulation.
Similarly, handle grip segment 366 is connected to handle segment
364 by means of a corresponding joint 370.
[0081] According to one feature of the present embodiment, the head
portion 372 of the present invention includes a region 374 having a
number of teeth and a gear-like pattern. The teeth 374 when mounted
to the first handle segment 372 engage with movable gear 376. A pan
or bolt arrangement passing through holes 378 connects the head
portion 372 to the first handle portion 362 using a nut and bolt or
other similar arrangement (not shown but well known in the art). If
the user wishes to adjust the angle of the head portion 372 with
respect to the handle, he or she merely needs to turn the movable
gear 376 which will cause the head portion 372 to pivot about the
axis passing through openings 378. This mechanism is not too
dissimilar from the mechanism of an adjustable open-end wrench.
[0082] An axe 310, according to one embodiment of the present
invention, features a pick 312 adjustably disposed about at least
one end region 314 of a handle portion 316 such that the angle A
between the pick 312 and the handle 316 can be adjusted by the
climber. In this manner, the axe 310 serves both as a pick and an
axe.
[0083] According to one embodiment of the present invention, the
pick 312 is rotatably disposed relative to the handle portion 316
about a pivot point 313. The handle portion 316 may include a
traditional handle, or alternatively may include the handle as
described in U.S. Provisional Application Ser. No. 60/650,245,
filed Feb. 4, 2005, which is fully incorporated herein by
reference.
[0084] An end region 318 of the pick 312 that abuts the end region
314 of the handle portion 316 includes a plurality of teeth 320 in
a gear-like pattern. When the pick 312 is mounted to the end region
314 of the handle 316, the teeth 320 engage with teeth 324 of a
movable gear 322, preferably a worm gear or the like, such that as
the moveable gear 322 is rotated about its longitudinal axis. The
movable gear 322 also preferably includes an engagement region 333
as will be discussed in greater detail hereinbelow. As the moveable
gear 322 is rotated, the teeth 324 of the moveable gear 322 engage
the teeth 320 of the pick 312 and the angle A between the pick 312
and the handle portion 316 is altered.
[0085] A setscrew, bolt or similar arrangement (not shown but as
well known in the art) 330, FIG. 28, passes through holes 332 in
the end region 318 of the pick 312 and the end region 314 of the
handle potion 316 [FIG 26] 372 to the first handle portion 362. The
setscrew 330 is preferably the same as the pivot point 313
discussed above.
[0086] To adjust the angle A of the pick 312 with respect to the
handle portion 316, the user loosens the setscrew 313. Next, the
user inserts an engagement tool 335, preferably an allen wrench or
key, into the engagement region 333 of the moveable gear 322. It is
important to note that while the engagement tool 335 and engagement
region 333 have been described as an allen head arrangement, this
is not a limitation of the present invention. Those skilled in the
art will readily recognize that any other arrangement could be used
provided that it does not require expensive or overly-complicated
equipment.
[0087] As the user turns the engagement tool 335, the moveable gear
322 is rotated which causes teeth 320, 324 to engage each other,
thereby rotating the pick 312 about the pivot point 313. This
mechanism is not too dissimilar from the mechanism of an adjustable
open-end wrench. Once the pick 312 has been adjusted to the desired
angle A, the setscrew 330 is tightened and the axe 310 is ready to
be used.
[0088] In the preferred embodiment, the moveable gear 322 is
preferably disposed behind a cover or plate (not shown) which
protects the moveable gear 322 from the elements. In an alternative
embodiment, the cover may be removable or not included altogether.
It is important to note that the engagement tool 335 and engagement
device 333 facilitate the movement of the pick 312. While the
moveable gear 322 could be adjusted directly similar to an open-end
wrench, this would difficult and likely require the user to remove
his/her gloves in order to get enough grip. Moreover, the moveable
gear 322 would have to be exposed in order to allow for access
thereby increasing the likelihood of ice/snow/dirt becoming lodged
within the teeth 320, 324.
[0089] Individuals who sleep in tents often like to have a tent
with a vestibule which serves to allow the tent to vent at the same
time preventing rain from entering an open door in the tent. A
vestibule however adds a fair amount of weight and the bulk to a
tent. This is particularly not advantageous when one is back
packing a long distance, to remote areas or difficult to reach
locations.
[0090] Accordingly, what is needed is a novel mechanism which can
vent a tent too [UNSURE WHAT MEANING HERE] by performing as a
vestibule while preventing rain from entering the tent. As shown in
FIG. 29, another aspect of the present invention includes a tent
with an overlapping door cell. In accordance with the present
invention, the top region of the door 300 overlaps the bottom
region of the door 302 as shown by overlap area 304. Since the door
top 300 overlaps the bottom 302, air is allowed to escape from the
interior of the tent such as for example, using a structure or
other pole mechanism 306 to provide for venting while preventing
rain, snow and other whether from entering the tent. In use, the
user simply opens the overlapping top door portion 300 by pulling
it up and away from the bottom region and craws into the tent. If
the whether is inclement, the entire door flap may be opened using
a zipper 310 as with prior art tents.
[0091] When backpacking, mountaineering, or other types of outdoor
activities, it is often desirable to have a tent which is as rigid
as possible but also as lightweight and easy to set up as possible.
Traditional tents having removable poles are often disdained
because the poles may break, get lost in or be difficult to thread
on and through the various tabs provided on a tent. This is
particularly true in bad weather or at night. Poles are often
difficult to assemble to each other and are annoying to take apart
from themselves as most separate the poles from the tent. Although
tents provided with air bladders for rigidity are known, air
bladders are limited to rather small tents and provide somewhat
less rigidity in the tent structures than do more rigid poles.
Accordingly, there is a need for a poled tent which is easy to
fold, store and carry as well as easy to set up.
[0092] One feature of the present invention, therefore, is to
provide a tent 420, FIGS. 31 and 32, having hinged poles 422 which
a generally permanently mounted to the tent structure 424 but which
have one or more hinged intersecting regions 426. In accordance
with one aspect of the hinge 426, the present invention
contemplates a double axle hinge 426 as shown in FIGS. 33 and
34.
[0093] In another embodiment, a single axis hinge 426a, FIG. 35 is
disclosed. A single axis hinge 426 includes a central region 430
typically made from a molded class reinforced nylon material. This
material as lightweight and inexpensive. The material includes one
or more stop regions 432 which control how much each pole can be
opened. The two poles 434 436 are connected with a central pin 438
or other similar connector held in place by a split rain or other
similar device.
[0094] In another embodiment of the present invention as shown in
FIG. 36, a tent 450 may be provided which has one or more pockets
or sleeves 452 into which are permanently or generally permanently
sewed poles 454 thereby preventing the pole from tearing the fabric
of the sleeves 452. In this manner, the tent can be folded up and
set up quickly without the need to fuss with poles. Each pole may
be an individual pole segment or alternatively, the poles can be
connected together by means of a hinge, as previously
described.
[0095] An additional feature of the present invention is a new
design in air beam supported tents. As seen in FIG. 38, one aspect
of the present invention is a tent 480 without redundant air beams.
The air beams have an asymmetric design such that one air beam is
outside and one is bisected by the tent shell. This approach allows
the tent to be freestanding, gives it surprising strength and
provides easy access to the air beam.
[0096] Modifications and substitutions by one of ordinary skill in
the art are considered to be within the scope of the present
invention, which is not to be limited except by the following
claims.
* * * * *