US5074437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pinch trigger pump water gun
Assignee: HIAC VII CORP A DE CORP
•
Filing: 1990-09-06
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Granted: 1991-12-24
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Expires: 2010-09-06
Abstract
Abstract The present invention is directed toward a toy water gun which is operated by selectively releasing water from a water reservoir that is pressurized with air. The present invention is a one piece device formed in the general shape of a gun that has a manually operated air pump incorporated into the design. The air pump pressurized a water reservoir and consequently pressurizes any water found therein. The pressurized water has an avenue of release that is regulated by the trigger mechanism of the invention. When no force is applied to the trigger, the pressurized water is held at bay with no means of release. When force is applied to the trigger, water is released from the pressurized container and is channeled through a narrow nozzle. The escape of the pressurized water through the narrow nozzle creates a stream of propelled water that lasts as long as the trigger is engaged or until the pressure of the water equals the ambient air.
Inventors
- 👤 Bruce M. D'Andrade
- 👤 Lonnie G. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:31
CPC Classifications
F; F41; F41B; F41B9/00; F41B9/0003; F41B9/0006; F41B9/0015; F41B9/0018; B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/0403; B05B9/0426; B05B9/08; B05B9/0805; B05B9/0811; B05B9/0816
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
245 words
A high pressure, self-contained, air pressured toy water gun, which comprises: (a) a housing; (b) an extended handle connected to said housing; (c) a trigger located on said housing adjacent said handle; (d) a barrel portion of said housing extending outwardly away from said handle; (e) a high pressure, detachable water storage reservoir having only a single orifice; (f) an attachment means located on said water gun housing for attaching said water storage reservoir to said water gun housing by attachment of said single orifice to said attachment means, and, when said water storage reservoir single orifice is attached thereto, forming therewith a seal impervious to water; (g) a pressuring means with a slider, for pressurizing said water storage reservoir with air, said means being an integral part of said water gun housing; (h) an elongated avenue of release for water displaced by said pressurized air, said avenue of release depending from said attachment means and running the length of said barrel; (i) a water release means for regulating the fluid flow through said avenue of release, said water release means being attached to said trigger of said water gun and functionally connected to said avenue of release, and regulated by the movement of said trigger; and, (j) a nozzle at the end of said barrel, said nozzle being connected to said avenue of release; wherein said attachment means and water storage reservoir are remotely located on said housing away from said pressuring means slider.
Claim 2
Dependent Claim
245 words
A high pressure, self-contained, air pressured toy water gun, which comprises: (a) a housing; (b) an extended handle connected to said housing; (c) a trigger located on said housing adjacent said handle; (d) a barrel portion of said housing extending outwardly away from said handle; (e) a high pressure, detachable water storage reservoir having only a single orifice; (f) an attachment means located on said water gun housing for attaching said water storage reservoir to said water gun housing by attachment of said single orifice to said attachment means, and, when said water storage reservoir single orifice is attached thereto, forming therewith a seal impervious to water; (g) a pressuring means with a slider, for pressurizing said water storage reservoir with air, said means being an integral part of said water gun housing; (h) an elongated avenue of release for water displaced by said pressurized air, said avenue of release depending from said attachment means and running the length of said barrel; (i) a water release means for regulating the fluid flow through said avenue of release, said water release means being attached to said trigger of said water gun and functionally connected to said avenue of release, and regulated by the movement of said trigger; and, (j) a nozzle at the end of said barrel, said nozzle being connected to said avenue of release; wherein said attachment means and water storage reservoir are remotely located on said housing away from said pressuring means slider.
Claim 3
Dependent Claim
23 words
The invention of claim 1 wherein said water storage reservoir is designed to hold at least 100 pounds per square inch of pressure.
Claim 4
Dependent Claim
28 words
The invention of claim 1 wherein the flow of air from said water storage reservoir to said means of pressurization is prevented by a one way flow device.
Claim 5
Dependent Claim
28 words
The invention of claim 1 wherein the flow of water from said water storage reservoir into said means of pressurization is prevented by a one way flow device.
Claim 6
Dependent Claim
30 words
The invention of claim 1 wherein said water storage reservoir has a threaded neck surrounding said orifice that attaches to said water gun housing via a sympathetically threaded housing mount.
Claim 7
Dependent Claim
25 words
The invention of claim 1 wherein said nozzle has a narrow orifice therethrough with a cross-sectional area less than that of said avenue of release.
Claim 8
Dependent Claim
17 words
The invention of claim 1 wherein said water reservoir holds at least one half liter of liquid.
Claim 9
Dependent Claim
38 words
The invention of claim 1 wherein said attachment means has a elongated hollow member depending therefrom, said elongated hollow member extending through said orifice of said water storage reservoir and terminating at the lowest point within said reservoir.
Claim 10
Dependent Claim
20 words
The invention of claim 1 wherein said means for pressurizing said water storage reservoir is a hand operated air pump.
Claim 11
Dependent Claim
21 words
The invention of claim 9 wherein said air pump has a pumping stroke action along an axis parallel to said barrel.
Claim 12
Dependent Claim
17 words
The invention of claim 10 wherein said hand pump has a handle guided by said extended barrel.
Claim 13
Dependent Claim
21 words
The invention of claim 1 wherein said avenue of release is a flexible tube connecting said attachment means with said nozzle.
Claim 14
Dependent Claim
40 words
The invention of claim 12 wherein said means of regulatory fluid flow is a spring biased pinch bar that clamps said avenue of release against said water gun housing, collapsing said avenue of release thus restricting the fluid flow therethrough.
Claim 15
Dependent Claim
33 words
The invention of claim 13 wherein said spring bias is calibrated to yield to pressure within said avenue of release, when said pressure within said avenue of release exceeds a predetermined maximum value.
Claim 16
Dependent Claim
37 words
The invention of claim 14 wherein said maximum value for the yeilding of said spring bias to said pressure within said avenue of release is between 50 pounds per square inch and 90 pounds per square inch.
Claim 17
Dependent Claim
56 words
The invention of claim 13 wherein said spring bias of said pinch bar is overcome by a force applied to said trigger, whereby said pinch bar is formed as part of said trigger and said force applied to said trigger, through a lever action, causes said pinch bar to move in opposition of said spring bias.
Claim 18
Dependent Claim
35 words
The invention of claim 16 wherein said spring bias is formed by a straight spring having two ends, one end being anchored to said water gun housing and said second end engaging said pinch bar.
Claim 19
Dependent Claim
38 words
The invention of claim 17 wherein said attachment means has a elongated hollow member depending therefrom, said elongated hollow member extending through said orifice of said water storage reservoir and terminating at the lowest point within said reservoir.
References Cited (Backward Citations)
US2049194A
Cited
GB431955A
Cited
GB669983A
Cited
US2589977A
Cited
US3005495A
Cited
US3197070A
Cited
US3938709A
Cited
US4214674A
Cited
US4441629A
Cited
US4591071A
Cited
US4757946A
Cited
US4743030A
Cited
US4735239A
Cited
US4854480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |