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Water gun for ejecting continuous stream of water

Info

Publication number
WO1992022364A1
WO1992022364A1 PCT/US1991/004293 US9104293W WO1992022364A1 WO 1992022364 A1 WO1992022364 A1 WO 1992022364A1 US 9104293 W US9104293 W US 9104293W WO 1992022364 A1 WO1992022364 A1 WO 1992022364A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
water
pump
housing
motor
battery
Prior art date
Application number
PCT/US1991/004293
Other languages
French (fr)
Inventor
Alan B. Amron
Original Assignee
Talk To Me Programs, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B9/00Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
    • F41B9/0003Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid
    • F41B9/0031Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid the liquid being pressurised at the moment of ejection

Abstract

The invention relates to a water gun for ejecting a liquid stream. The problem associated with existing water guns is the pumping element usually can not eject a continuous stream of liquid. The watergun ejects liquid in a continuous stream as a result of a pump (22) driven by a battery-powered (12) motor (16). The pump (22) can be formed by two gears (46, 48) fitting within respective pump chambers (42, 44), and rotated to draw liquid into the pump housing (40) and forcibly eject liquid through an outlet (36) during activation of the battery-powered (12) motor (16).

Description

' WATER GUN FOR EJECTING CONTINUOUS STREAM

OF WATER

The present invention relates to a battery- powered water gun which can eject water in a continuous stream when the trigger is activated.

Waterguns having a pump which is battery powered are known, such as the waterguns disclosed in U.S. Patent No. 4,022,350 and U.S. Patent No. 4,750,641. Waterguns, however, typically serve to pump water from the gun in intermittently, and it is an object of the present invention to provide a truly continuous stream of water through the use of a rotary pump instead of the normal piston pump used in water guns.

It is, therefore, the object of the present invention to provide a watergun which includes a rotary pump which can be driven by a battery- powered motor to eject water from the watergun in a truly continuous stream.

According to the present invention, a watergun has a battery-powered motor connected to a rotary pump formed by a gear-type mechanicism situated within the housing. Preferably, the gear-type mechanicisms includes two rotary gears having approximately ten teeth each which fit within respective chambers of a pump housing, and rotate with the gears interacting. In this way, it has been found that battery life can be extended with the pump providing a continuous stream of water upon actuation of the trigger. Additionally, it has be been found that the water-transfer tubes leading from a water reservoir to the pump and the outlet tube to the nozzle of the watergun should be made rigid in order to enhance battery life.

These and other objects, advantages and features of the present invention will become more apparent from a review of the more detailed disclosures below, made in connection with the following drawings, in which:

Fig. 1 is a schematic cross-sectional view of a watergun according to the present invention;

Fig. 2 is an exploded view illustrating the pump housing of the watergun illustrated in Fig. 1. Fig. 1 illustrates a watergun having a housing 10 which may take any form desired. The housing 10 includes a battery pack 12 connected through a switch 14 to an electric motor 16. The switch 14 is designed to be closed upon actuation of the trigger 18 to energize the motor 16 as would be well understood in the art.

The motor 16 has a rotary output shaft 18 connected to the pump 22. A water reservoir 24 is provided, and the water reservior can be removable to provide additional capacity for the watergun. In a preferred embodiment of the present invention, the water reservoir includes an inlet 26 which has an elastomeric member 28 connected at the lower portion thereof which can be self- closing to seal the water reservoir.

A rigid tube 30 can be inserted through the elastomeric member 28 to provide access to the water within the water reservoir 24, and the rigid tube is connected to the intake 32 of the pump 22. Additionally, the out take tube 34 is also perferably rigid and extends to a restricted nozzle 36. Fig. 2 is an exploded view of the pump 22, and includes a lower pump housing 40 which has two cavities 42 and 44 adapted to receive rotary gear elements 46 and 48. Gear elements 46 and 48 fit within the respective cavities 42 and 44, and as illustrated in the drawing, can interlock with one another.

The pump is sealed by an upper housing 50 which serves as a gear housing receiving oil ring 52 and oil ring cover 54. Gears 56 and 58 are received within the gear housing and connected through shaft 60 extending through the gear housing cover 62 to the motor 16.

Alternatively, instead of the dual-gear arrangement illustrated in the drawing, a single, toothed gear rotating within an elliptic cavity has been found to provide adequate pumping force to eject a continuous stream from the exit nozzle 36.

As understood in the art, the rotation of the gear elements 46 and 48 through energizmg the motor will draw water from the reservoir 28 through the inlet opening 32 of the pump housing and enable water to be forcibly ejected from the outlet 34 upon rotation of the gears 46 and 48.

Claims

I Claim 6
1. A water gun for continuously ejecting a stream of water, including a housing containing a motor, a battery pack for energizing the motor, a trigger mechanicism for closing an electric circuit between the battery pack and the motor, and a pump connected through an appropriate gear mechanicism to said motor, said pump including a gears fitting within respective cavities to forcible eject water from a watergun upon activation of a trigger mechanicism.
2. A water gun according to claim I, further including rigid inlet tubes to the pump housing from a water reservoir, and a rigid outlet tube from the pump to an ejection nozzle of the watergun.
PCT/US1991/004293 1991-06-17 1991-06-17 Water gun for ejecting continuous stream of water WO1992022364A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1991/004293 WO1992022364A1 (en) 1991-06-17 1991-06-17 Water gun for ejecting continuous stream of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1991/004293 WO1992022364A1 (en) 1991-06-17 1991-06-17 Water gun for ejecting continuous stream of water

Publications (1)

Publication Number Publication Date
WO1992022364A1 true true WO1992022364A1 (en) 1992-12-23

Family

ID=22225606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/004293 WO1992022364A1 (en) 1991-06-17 1991-06-17 Water gun for ejecting continuous stream of water

Country Status (1)

Country Link
WO (1) WO1992022364A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439139A (en) * 1994-01-31 1995-08-08 Lanard Toys Limited Toy water gun

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753079A (en) * 1953-05-04 1956-07-03 Knickerbocker Plastic Co Inc Water gun
US4022350A (en) * 1975-11-10 1977-05-10 Amron Alan B Water gun
US4187959A (en) * 1978-08-17 1980-02-12 The Continental Group, Inc. Propellantless aerosol dispensing system
US4706848A (en) * 1986-10-06 1987-11-17 Andrade Bruce M D High efficiency battery operated water gun
US4743030A (en) * 1986-09-03 1988-05-10 Buddy L Corporation Water gun and target combat game set
US4750641A (en) * 1986-09-24 1988-06-14 Chin Fu Hun Continuous water-ejecting pistol toy with simultaneous sound and red-flash effects
US4767033A (en) * 1986-07-31 1988-08-30 The Drackett Company Manually operated gear pump spray head
US4790454A (en) * 1987-07-17 1988-12-13 S. C. Johnson & Son, Inc. Self-contained apparatus for admixing a plurality of liquids

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753079A (en) * 1953-05-04 1956-07-03 Knickerbocker Plastic Co Inc Water gun
US4022350A (en) * 1975-11-10 1977-05-10 Amron Alan B Water gun
US4187959A (en) * 1978-08-17 1980-02-12 The Continental Group, Inc. Propellantless aerosol dispensing system
US4767033A (en) * 1986-07-31 1988-08-30 The Drackett Company Manually operated gear pump spray head
US4743030A (en) * 1986-09-03 1988-05-10 Buddy L Corporation Water gun and target combat game set
US4750641A (en) * 1986-09-24 1988-06-14 Chin Fu Hun Continuous water-ejecting pistol toy with simultaneous sound and red-flash effects
US4706848A (en) * 1986-10-06 1987-11-17 Andrade Bruce M D High efficiency battery operated water gun
US4790454A (en) * 1987-07-17 1988-12-13 S. C. Johnson & Son, Inc. Self-contained apparatus for admixing a plurality of liquids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439139A (en) * 1994-01-31 1995-08-08 Lanard Toys Limited Toy water gun

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