High efficiency battery operated water gun

Dispensing – Simulations – Firearms

Patent

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Details

222333, 222340, 239 99, 239331, 417471, A63H 318, B65D 8854

Patent

active

047068485

ABSTRACT:
The present invention is directed to a toy water gun which is battery operated. The present invention water gun has a housing which has a general configuration of a gun with a barrel and a handle. A water reservoir is located within the housing and a battery operated pumping system is also located within the housing. In addition, there is a pick up tube and a water tube, one being connected to an intake valve and the other being connected to the exhaust valve of the pumping system. The water tube which is connected to the exhaust valve is connected to a spray nozzle at its opposite end which is attached to the end of the barrel of the housing of the gun. A battery chamber is also located within the housing and electric circuitry is included which connects the battery chamber to the drive motor and to a switch which is connected to a trigger on the gun. The battery operated pumping system has a drive motor, a gear system, a drive shaft, a cam, a spring-loaded push rod, a main spring, an intake valve and an exhaust valve. Uniquely, the cam is a step-function drop off cam which operates to load the push rod and a main spring and then releases these so that the main spring operates the push rod to do the primary work of the piston within the pump system.

REFERENCES:
patent: 2951556 (1960-09-01), Jackson et al.
patent: 3116855 (1964-01-01), Thomson
patent: 4022350 (1977-05-01), Amron
patent: 4154375 (1979-05-01), Bippus
patent: 4162037 (1979-07-01), Koyama
patent: 4239129 (1980-12-01), Esposito

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