U.S. patent application number 11/699083 was filed with the patent office on 2007-06-21 for hand-held pressurized sanitizing system.
Invention is credited to Daniel Timmes, Peter Timmes.
Application Number | 20070138320 11/699083 |
Document ID | / |
Family ID | 38172344 |
Filed Date | 2007-06-21 |
United States Patent
Application |
20070138320 |
Kind Code |
A1 |
Timmes; Peter ; et
al. |
June 21, 2007 |
Hand-held pressurized sanitizing system
Abstract
A hand-held system for sanitizing contaminated articles that
come into intimate contact with the human body such as scuba diving
equipment including aqua lungs, wet-suits, fins, caps and masks
comprises structures for exposing confined parts of the gear such
as hoses, pressure regulators and mouthpieces to a pressurized flow
of fluid using a fluid-conditioning spray gun adapted to mix a
germicidal solution into a jet of water or other fluid carrier. The
spray gun has a conical nozzle provided with a set of graduated,
flexible, feather-edged disks or barbs that can hermetically mate
with a number of component apertures of different sizes and
shapes.
Inventors: |
Timmes; Peter; (Carlsbad,
CA) ; Timmes; Daniel; (Encinitas, CA) |
Correspondence
Address: |
CHARMASSON, BUCHACA & LEACH, LLP
1545 HOTEL CIRCLE SOUTH, SUITE 150
SAN DIEGO
CA
92108-3426
US
|
Family ID: |
38172344 |
Appl. No.: |
11/699083 |
Filed: |
January 29, 2007 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10199652 |
Jul 22, 2002 |
7168629 |
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11699083 |
Jan 29, 2007 |
|
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09794813 |
Feb 28, 2001 |
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10199652 |
Jul 22, 2002 |
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Current U.S.
Class: |
239/398 ;
239/344; 239/399; 239/428.5 |
Current CPC
Class: |
B05B 7/2405 20130101;
B63C 2011/023 20130101; B05B 7/2443 20130101; A61L 2/22 20130101;
B63C 11/02 20130101; B05B 7/244 20130101; B05B 9/0816 20130101;
B05B 12/008 20130101; Y10S 239/12 20130101; B05B 7/2424
20130101 |
Class at
Publication: |
239/398 ;
239/399; 239/344; 239/428.5 |
International
Class: |
B05B 7/30 20060101
B05B007/30; B05B 7/04 20060101 B05B007/04; B05B 7/10 20060101
B05B007/10; E03C 1/08 20060101 E03C001/08 |
Claims
1. An apparatus for sanitizing contaminated articles which
comprises: a source of pressurized fluid; a source of sanitizing
fluid; a spraying gun having a pressurized fluid inlet, a mixed
fluid outlet, a pressurized fluid channel including a venturi
between said inlet and said outlet, and a mixing fluid inlet
connected to said venturi; conduct means between said source of
pressurized fluid and said pressurized fluid inlet, and between
said source of sanitizing fluid and said mixing fluid inlet; and a
nozzle at said mixed fluid outlet, said nozzle have a proximal end
secured to said outlet and a distal end; a plurality of
circumferentially feather-edged disks axially layered around said
nozzle, said disks having different, graduated outer diameters
stepping up from a smallest one of said disks proximal to said
distal end to a largest one of said disks proximal said proximal
end.
2. The apparatus of claim 1, wherein said disks are made of
resiliently flexible material.
3. The apparatus of claim 2, wherein said disks are formed
integrally with said nozzle.
4. The apparatus of claim 1, wherein said source of pressurized
fluid comprises a water supply line.
5. The apparatus of claim 1, wherein said source of pressurized
fluid comprises a tank of pressurized gas.
6. The apparatus of claim 1, wherein said source of pressurized
fluid comprises a pump drawing from a body of water.
7. The apparatus of claim 1, wherein said source of pressurized
fluid comprises: a reservoir; a liquid held in said reservoir; and
means for pressurizing said liquid within said reservoir.
8. The apparatus of claim 7, wherein said means for pressurizing
comprise a manually operable pump.
9. The apparatus of claim 1, wherein said source of sanitizing
fluid comprises: a reservoir; and a germicidal solution held within
said reservoir.
10. The apparatus of claim 1, wherein said spray gun further
comprises a manometer connected to said pressurized fluid
channel.
11. The apparatus of claim 1, wherein said source of sanitizing
fluid comprises: an anti-bacterial agent.
12. The apparatus of claim 1, which further comprises means for
pressurizing fluid at said mixed fluid outlet to at least 1.36
atmospheres to said source of pressurized fluid.
13. The apparatus of claim 1, which further comprises means for
injecting said mixed fluid into confined zones of said articles.
Description
PRIOR APPLICATION
[0001] This is a divisional of U.S. patent application Ser. No.
10/199,652 filed Jul. 22, 2002, now U.S. Pat. No. 7,168,629, issued
Jan. 30, 2007 which is a continuation-in-part of application Ser.
No. 09/794,813 filed Feb. 28, 2001, abandoned.
FIELD OF THE INVENTION
[0002] This invention relates to sanitizing process and devices
used in connection with objects that come into intimate contact
with the human body such as SCUBA diving gear, and more
particularly, to special spraying and atomizing equipment used to
apply a sanitizing solution to a contaminated article.
BACKGROUND OF THE INVENTION
[0003] The equipment worn by divers such as wet suits,
self-contained underwater breathing apparatus best known under the
acronym SCUBA or aqualung, the fins and face masks come in intimate
contact with various parts of the diver's body. The mouthpiece,
tubing, and valve of the aqualung carry fluids and solids exhaled
by the diver. The interior of the wet suit comes in contact with
bacteria always present about the diver's skin and even infectious
discharge from boils, pustules, and fresh wounds. Diving equipment
is commonly leased or rented from sporting goods stores and water
sport equipment shops found around beaches and aquatic facilities.
It is not unusual for a set of scuba gear to be used by several
persons over a single day without undergoing any kind of effective
sanitization between uses. As reported in the March/April 1997
issue of ALERT DIVER, the contamination risks associated with the
use of diving equipment is well recognized. The Center for Disease
Control in Atlanta, Ga. has published guidelines for disinfecting
scuba equipment. These guidelines include dismantling and scrubbing
certain components with soap followed by fresh water rinsing and
immersion in a broad spectrum of germicidal solutions. The tedious
and time-consuming practices of dismantling and scrubbing parts is
seldom followed. The most common method, to date, of sanitization
is by immersion into a bath of chlorinated water or similar
germicide. It has been found that this type of sanitization is not
particularly effective against germs that can invade the complex
structure of the aqualung where they can retain their infecting
potential for several weeks. Moreover, due to the large amount of
sanitizing liquid required in the immersion process, the batch of
sanitizing liquid is not replaced after each set of equipment, but,
instead, used for long periods of time. Several sets of diving gear
may be submerged at the same time, in the same bath. Consequently,
the bath may quickly use some of its sanitizing power, and in a
worst scenario, contribute to cross-infection from one diver's gear
to another. In many cases, diving equipment may be used
repetitively by different divers on board ship, or in remote areas
where large quantities of sanitizing liquid is not available.
[0004] The instant invention results from an attempt to develop a
rapid and effective way to sanitize a large variety of diving
equipment using a minimum amount of disinfecting fluid.
SUMMARY OF THE INVENTION
[0005] The principal and secondary objects of this invention are to
provide a method and apparatus for quickly and effectively
sanitizing the various pieces of equipment used by scuba divers, or
any other equipment worn by a person that comes into intimate
contact with human tissue or organ, without requiring dismantling
and extensive scrubbing of components, soaking in a large amount of
disinfecting fluid, or using complex and bulky equipment, large
facilities and intensive labor, in order to minimize or completely
prevent cross-infection from one diver to another using the same
equipment.
[0006] These and other valuable objects are achieved by the use of
a fluid-conditioning sprayer operating from a convenient source of
pressurized fluid such as urban water supply to effectively inject
and disperse a disinfecting solution over broad open surfaces as
well as into complex and circuitous passageways. The sprayer nozzle
is particularly adapted to intimately engage and seal a plurality
of inlets and apertures of the different sizes and shapes and to
effectively disperse the spray into a deeply penetrating stream.
The nozzle of the sprayer comprises a plurality of gradually
decreasing, circumferential and resiliently compressible flanges
which can hermetically adhere to various sized openings.
BRIEF DESCRIPTION OF THE DRAWING
[0007] FIG. 1 is a cross-sectional view of a sanitizing spray gun
according to the invention;
[0008] FIG. 2 is a diagrammatical view of a hand-pressurized fluid
tank;
[0009] FIG. 3 is a diagrammatical view of two alternate sources of
pressurized fluid; and
[0010] FIG. 4 illustrates the sanitizing of SCUBA gear.
DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION
[0011] Referring now to the drawing, there is shown an apparatus
for sanitizing the various devices and components used in the
practice of scuba diving. The apparatus can be effectively used to
sanitize wet suits, fins, masks, caps, and more particularly, all
the complex components of aqualungs.
[0012] The apparatus comprises a spray gun 1 which is connected to
a source of pressurized fluid, such as a water line 2 by means of a
flexible conduit 3. Inside the spray gun, a pressurized fluid
channel 4 runs from a pressurized fluid inlet 5 to a mixed fluid
outlet 6, and passes through a variety of control devices. The
first of these devices is a manometer 7 which can be monitored to
ascertain that the fluid pressure meets the recommended guidelines
for each specific sanitizing task. Next is a spring-biased,
trigger-controlled valve 8 which can be conveniently activated to
admit the pressurized fluid. Finally, a venturi 9 is connected to a
mixing fluid inlet 10. Secured to the mixing fluid inlet is a
reservoir 11 containing a sanitizing fluid 12. A hand-controlled
valve 13 mounted between the venturi 9 and the mixing fluid inlet
10 can be used to either admit, adjust or turn off the supply of
sanitizing fluid being drawn from the tank 11 by means of the
conduit 10A dripping into the fluid. Screwed upon the mixed fluid
outlet 6 is a nozzle 14 specifically configured to provide a
relatively leak-proof coupling to apertures of various shapes and
sizes. These apertures may belong to hoses, mouthpieces, regulators
and other scuba diving components. The nozzle is equipped with a
series of size-graduated disks 15 which are axially layered in a
sequence of gradually increasing diameters from the distal end 16
of the nozzle toward its proximal end 17. Each disk is
circumferentially feather-edged, that is, its thickness decreases
radially to a sharpe tip. The disks are made from a resiliently
flexible material such as rubber or polypropylene. In the
illustrated preferred embodiment, the disks are integrally formed
with the nozzle. Typically, the diameter of the channel 4 and
nozzle opening is approximately 3 mm. The smallest disk 18 has a
diameter of approximately 10 mm, and the largest disk 19 has a
diameter of 30 mm. The length 20 of the flexible fins or barbs in
the respective disks varies from 3 mm to 10 mm. As the nozzle is
introduced into an opening leading to a confined part of a SCUBA
gear such such as the end of a hose 26, one or more of the disks is
bent backward to form a seal against the internal walls of the
opening. In the case when the apparatus is to be used for spraying
a wet suit from a short distance, a conventional spraying nozzle
such as the ones used in association with garden hoses can be
substituted for the above-described self-sealing nozzle 14. Some of
those nozzles having a dialable set of various spray patterns, are
readily available on the market, such as the Nelson brand of
nozzles, model N323S sold by Meijer Lawn & Garden Products
(www.meijer.com).
[0013] In situations where a source of pressurized fluid is not
available, the spray gun 1 may be connected to a pressurable
container 21 of the type illustrated in FIG. 2. A hand-operated
pump 22 is used to introduce pressurized ambient air into the upper
region 23 of the container in order to place the liquid 24 under
pressure.
[0014] As shown in FIG. 3, the pressurized fluid may be generated
by a pump 25 drawing fluid from a tank 26. Alternately, the spray
gun 1 may be connected to a bottle 27 of pressurized gas, the gas
can be used both as a carrier for the disinfecting solution 12 as
well as a drying agent to be blown, without any desanitizing
solution, into or over the diving equipment.
[0015] The type of sanitizing solution must be tailored to the type
of equipment, taking into account the corrosive property of some
particular germicidal agent such as chlorine or providone
iodine.
[0016] In circumstances when a source of fresh and relatively safe
water is not available, the pressurable container 21 of FIG. 2 can
be filled with lake or sea water, and the pump 25 of FIG. 3 may
draw directly from any available volume of liquid.
[0017] The above-described method of sanitizing a piece of
equipment that has come into intimate contact with a person's skin
or other tissue is more effective than the soaking method so long
as the sanitizing solution is applied with enough pressure so as to
dislodge and carry debris and other deposits which may have adhered
to the equipment. Typically, the solution should be circulated
within a regulator, air hose or or other type of passageway under
at least 1.36 atmospheres (20 pounds per square inch). The jet of
solution sprayed upon a wet suit or any other exposed surface
should impact the material with a force of the same order of
magnitude. The high pressure circulation or spray needs only last
one or two minutes to be effective.
[0018] While the preferred embodiment of the invention has been
described, modifications can be made and other embodiments may be
devised without departing from the spirit of the invention and the
scope of the appended claims.
* * * * *