U.S. patent number 3,797,450 [Application Number 05/322,005] was granted by the patent office on 1974-03-19 for emergency signal flag.
Invention is credited to Lloyd E. Frisbee.
United States Patent |
3,797,450 |
Frisbee |
March 19, 1974 |
EMERGENCY SIGNAL FLAG
Abstract
A signal flag apparatus is disclosed herein having an elongated
tube storing a shaft with a flag secured along one end thereof. The
tube houses resilient member forciably urging the shaft and flag
out of the tube in a fully deployed condition. A push button device
holds the shaft and flag in a storage position within the tube and
upon actuation, permits the resilient member to project the shaft
and flag out of the tube. A pull cord is attached to the end of the
shaft which when pulled, causes the shaft and flag to be withdrawn
into the tube for storage and reset purposes. A bracket pivotally
mounts the tube on an appropriate portion of a vehicle such as a
boat.
Inventors: |
Frisbee; Lloyd E. (Chatsworth,
CA) |
Family
ID: |
23252985 |
Appl.
No.: |
05/322,005 |
Filed: |
January 8, 1973 |
Current U.S.
Class: |
116/28R; 116/173;
116/281 |
Current CPC
Class: |
G09F
17/00 (20130101); G09F 2017/0075 (20130101); G09F
2017/005 (20130101) |
Current International
Class: |
G09F
17/00 (20060101); B60q () |
Field of
Search: |
;116/28R,132A,173,132,174,175 ;248/26A,42,291 ;40/131,129C |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Capozi; Louis J.
Attorney, Agent or Firm: Marrs; Roger A.
Claims
What is claimed is:
1. A signal flag apparatus having a deployed
condition and a storage condition comprising
the combination of:
an elongated tube having an open ended passageway extending there
through;
a shaft slidably housed in said tube;
a flag secured along one end of said shaft;
a cylindrical guide secured to said shaft midway between its
opposite ends and occupying the diameter of said passageway in
sliding relationship therewith;
a plug having a tapered passageway secured to a selected end of
said tube occupying said passageway and provided with an annular
shoulder facing the underside of said guide;
a coil spring within said tube passageway expandable between said
plug shoulder and said guide to normally urge said shaft out of
said tube at its end opposite to its end secured by said plug;
a collar secured to the end of said tube from which said shaft and
said flag exists that restricts said tube passageway and that
cooperates with said guide for limiting movement of said shaft
through said tube whereby said flag is deployed externally of said
tube;
a spring loaded latch lever pivotally carried on said tube and
releasable engagable with a conical shaped member carried on the
end of said shaft;
a pull cord carried on the end of said shaft in securement with
said conical shaped member and having an effective length hanging
from said tube passageway via said tapered passageway for gripping
and pulling whereby said shaft and said flag are withdrawn into its
storage condition;
said conical member mating with said tapered passageway to seat
said shaft in said tube passageway wherein said latch lever engages
said conical member to retain said shaft and said flag in its
storage condition; and
said collar further having a tapered entrance leading into said
tube passageway for allowing reciprocal movement of said shaft
therethrough and for furling said flag upon withdrawal into said
tube.
2. The invention as defined in claim 1 including:
mounting means for detachably retaining said tube onto a marine
vehicle.
3. The invention as defined in claim 2 wherein:
said mounting means includes a bracket carried on said tube;
a mounting link pivotally connected to said bracket;
and suction cups releasably securing said mounting link to said
marine vehicle.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to manually deployed signal flags and more
particularly to a novel signal flag having a releasably latch for
deploying the flag and a pull tab for retracting and storing the
flag.
2. Description of the Prior Art
In the field of water sports, water skiing is currently being
practiced by larger numbers of persons than previously. In most
instances, water skiing occurs within the confines of a small lake
and in general, a circular or oval tract is provided over which two
boats and their skiers negotiate. During a water ski performance,
it often times happens that the skier spills or falls into the
water and thusly, a hazard is created not only for the downed skier
but for the rapidly decelerating tow boat. Additionally, the two
boat must return to the downed skier for pick up purposes which
action sometimes causes the tow boat to go against oncoming boat
traffic or at least the boat will be stopped in the water while
other oncoming traffic negotiates the course therearound.
For these reasons, it is customary for the ski boat to display a
flag indicating the occasion of a downed skier and the boat's
intent to pick the skier up. In the past, a standard flag consisted
of a stanchion with a flag carried along one end thereof that is
held by a person in the boat and waved in a signalling manner.
Problems have arisen from usage of this type of flag apparatus
since the flag is generally stored on the bottom of the boat and
sometimes becomes lodged in equipment nearby. Also, persons in the
boat sometimes step on the flag and damage the flag or the
stanchion so that it cannot be used in emergencies.
Some attempts have been made to provide automatic pop-up flags for
various occasions such as those disclosed in U.S. Letters Pat. Nos.
2,233,119; 2,458,316 and 1,288,060. Although these prior devices do
provide an automatic pop-up arrangement for the flag, problems have
been encountered which stem largely from the fact that the flag
cannot be readily stored into its housing so that it may be used
again. Difficulties have been encountered in folding the flag on
the stanchion or posts of the flag so that it may be readily stored
and in proper position for deployment when it is reused. Also, in
some pop- up flag apparatus, a paper cone must be positioned about
the folded flag so that it may be stored in a tubular housing. This
is disadvantageous since the tubular or conical cone must be
severed from the flag in order to permit proper deployment.
Furthermore, prior art devices have not provided a suitable means
for placing a deployed flag back into its storage condition where
it is readily available for reuse.
Therefore, there has been a long standing need to provide a novel
emergency signal flag apparatus having a stored position and a
deployed position including releasable means for holding the flag
in the stored position and for deploying the flag when
released.
SUMMARY OF THE INVENTION
Accordingly, the problems and difficulties encountered with prior
art signalling flag devices have been obviated by the present
invention which provides a novel signal flag apparatus having an
elongated tubular housing for storing a shaft having a flag
fastened or secured along one end thereof. Resilient means are
provided for forciably urging the shaft including the flag out of
the tubular housing when releasable means are manually actuated.
The tubular housing includes means for guiding the flag shaft out
of the tubular housing when released and further includes means for
furling the flag about or around the shaft when it is retracted
into the tubular housing for storage purposes. Means are provided
for so retracting the flag and the shaft into the tubular housing
which includes means for resetting the releasable means so that the
flag is in condition for reuse. Means are provided for detachably
connecting the tubular housing onto a marine vehicle such as a ski
tow boat.
Therefore, it is among the primary objects of the present invention
to provide a novel signal flag apparatus having means for
releasably deploying a flag from its housing and that includes
withdrawing means for withdrawing the flag into its housing for
storage purposes and for reuse.
Another object of the present invention is to provide a novel
signal flag apparatus having releasable means for manually
unlatching a resilient member so that the flag is forciably urged
from its storage position and that includes means for withdrawing
the flag into its housing for storage purposes and for resetting
the releasing means.
Another object of the present invention is to provide a novel
pop-up flag apparatus to be carried on a two boat for water skiers
which may be readily operated by the operator of the boat without
the necessity of the operator handling or manipulating the
flag.
Yet another object of the present invention is to provide a novel
flag for signalling purposes that may be readily deployed by means
of a push button release without requiring further deployment by
the user.
A further object of the present invention provides a novel pop-up
flag apparatus that may be readily carried on a water ski tow boat
having a push button means for deploying the flag and a pull cord
arrangement for withdrawing the flag into a housing for reuse.
The features of the present invention which are believed to be
novel are set forth with particularity in the appended claims. The
present invention, both as to its organization and manner of
operation, together with further objects and advantages thereof,
may best be understood by reference to the following description,
taken in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the marine vehicle employed in the
sport of water skiing and carrying the novel signal flag of the
present invention in its deployed condition;
FIG. 2 is an enlarged longitudinal cross-sectional view of the
signal flag shown in FIG. 1 and illustrating the flag in its
storage condition;
FIG. 3 is a view similar to the view of FIG. 2 showing the flag
fully deployed;
FIG. 4 is a transverse sectional view of the signal flag as taken
in the direction of arrows 4--4 of FIG. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1, a boat 10 is illustrated which serves as a tow
boat for a skier holding onto a handle carried at the end of a rope
11 fastened to a transon 12 of the boat. Boat 10 includes a cockpit
area between the opposite sides of the boat and a steering wheel 13
for establishing directional control thereof. A windshield 14 is
provided to shield the boat operator from wind and spray.
In connection with the operation of boat 10 as a ski boat, the
signal flag apparatus of the present invention is indicated in the
general direction of arrow 15 which includes, in general, a
pivotaly attachment means 16 mountably supporting the flag
apparatus having a tubular housing or cover tube 17 from which a
shaft 18 projects for carrying an unfurled flag 20. It is noted
that the flag 20 is carried along one end of the shaft 18 while the
opposite portion or end of the shaft 18 projects from a selected
end of the tubular housing 17. The flag is illustrated in its
deployed or unfurled condition such as when the apparatus has been
manually triggered to display the flag indicating a downed
skier.
Referring now in detail to FIG. 2, an enlarged view of the signal
flag apparatus 15 is shown wherein the flag is illustrated in its
stored condition with the flag 20 being wrapped about a portion of
shaft 18 within the tubular housing 17. The tubular housing is open
ended and the dual length of shaft 18 and flag 20 are housed
therein. Carried about the lower portion of shaft 18, there is
fixly secured thereto, a spacer guide 21 that slides within the
bore of the tubular housing 17 as the shaft 18 moves up or down
therethrough. A centering stop or plug 22 closes the lower end of
the tubular housing and includes an annular shoulder 23 which butts
against one end of a resilient spring 24. The other end of the
resilient spring presses against the guide 21 so that the expansion
force of the spring normally urges the shaft and flag out of the
upper end of tubular housing 17. The extreme lower end of shaft 18
includes a latch lug 25 which is conical in exterior configuration
so that the shaft 18 will be self centering when the lug 25 engages
with the sloping shoulder 26 leading into a passageway formed in
the centering stop or plug 22. The apex end of lug 25 is attached
to the end of a pull cord 27 having a pull tab or ball 28 secured
at one end. The opposite end of lug 25 from its end attached to
cord 27 forms a shoulder 30 against which a latch release lever 31
engages.
The latch release lever 31 includes a button 32 which forms a part
of a releasing means for disengaging lever 31 from stop lug 25 so
that the expansion force of spring 24 will forciably urge the shaft
and flag out of the upper end of tubular housing 17. The releasing
means further includes a latch cover 33 and a latch return spring
34 placing an expanding force between the end of lever 31 and cover
33. Push button 32 is exteriorly exposed through aperture 35 and
cover 33 while the lever 31 is pivotally carried on the tubular
housing via a pivot shaft 36.
The upper end of tubular housing 17 is provided with an upper stop
member 37 which includes a tapered bore 38 leading into the opening
of the tubular housing. Tapered bore 38 permits the shaft 18 to be
withdrawn into the tubular housing so that the flag 20 will be
directed into a furled or randomly folded condition for storage. An
annular shoulder 40 serves an abutment stop when the guide element
21 engages therewith.
As shown in FIG. 3, the flag 20 is fully deployed with the upper
portion of shaft 18 projecting out of the end of tubular housing
17. The guide stop or member 21 is in abutment with shoulder 40 of
upper stop 37. This engagement arrests movement of shaft 18 in
response to the expanding force of resilient spring 24. Also, it is
to be noted that the lower portion of shaft 18 is still within the
hollow of tubular housing 17 and that pull cord 28 extends through
the hollow of the tubular housing and through the passageway of
lower spring stop or plug 22 so that ball or tab 28 is readily
available for resetting the flag. For resetting, the pull tab 28 is
pulled so that cord 27 pulls the shaft 18 into the tubular housing
which effects compression of spring 24. As the conical stop 25
approaches plug 22, the conical surface will engage with the
tapered entrance 26 to the passageway in plug 22 so that the shaft
is centered. Also, this effects a seating of the shaft on the plug
22 so that the end of latch lever 31 engages behind the shoulder 30
of the stop member 25. During the withdrawal procedure, flag 20
will slide pass the tapered wall 38 of member 37 and be randomly
furled or folded about the shaft 18.
Referring now in detail to FIG. 4, and in general to FIG. 2, the
mounting assembly for the tubular housing 17 may comprise a bracket
45 projecting outwardly from a circular clamp 46 carried on the
external surface of tubular housing 17. The bracket 45 includes a
semi-circular slot 47 having a locking stud screw arrangement 48
operably connecting the bracket 45 to a mount 50. The mount 50
includes a pivot fastener 51 rotatably connecting the mount to
bracket 45 whereby the mount 50 may be pivoted to a desired
position and then locked in this position by means of the fastener
48. Mount 50 may be attached to any part of the boat by suitable
means. However, as illustrated, a pair of suction cups 52 and 53
detachably connect the signal flag apparatus of the present
invention to the windshield 14.
In view of the foregoing, it can be seen that the signal flag
apparatus 15 of the present invention provides a novel means for
manually deploying a signal flag in time of emergency so as to
indicate a boat operators course of action which is out of the
ordinary. The apparatus 15 includes releasable means associated
with latch 31 and push button 32 for applying a compressed
resilient force taking the form of compressed spring 24 for the
purpose of forciably urging shaft 18 upwardly through tubular
housing 17. As the spring 24 forces against guide member 21, shaft
18 proceeds through the hollow bore of tubular housing 17 and this
moving action is followed by flag 20 which is carried by the shaft
18. As the shaft exits through the upper end of the tubular
housing, the flag 20 becomes deployed and projection of shaft 18
terminates with the engagement of member 21 with shoulder 40 of the
upper stop element 37.
For retraction into its stowed position, pull cord 27 is drawn
through the passageway in plug 22 so that the shaft 18 is withdrawn
into the tubular housing 17 against the forciable urging of spring
24. This action compresses the spring 24 to load the device and
conical member 25 seats within the opening or passageway in plug 22
to indicate the full storage position of the flag. As the shaft 18
is withdrawn into the tubular housing, the flag 20 which is
preferably of a suitable plastic sheet or woven cloth variety,
gathers about the upper portion of shaft 18 and stows within the
hollow of the tubular housing. The device is loaded and ready for
use when the end of latch lever 31 engages behind the shoulder 30
of the conical member 25.
While particular embodiments of the present invention have been
shown and described, it will be obvious to those skilled in the art
that changes and modifications may be made without departing from
this invention in its broader aspects and, therefore, the aim in
the appended claims is to cover all such changes and modifications
as fall within the true spirit and scope of this invention.
* * * * *