Water discharge device particularly useful as toy water gun

Dispensing – Simulations – Firearms

Patent

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Details

222212, 446180, 446473, 137475, 251 61, B65D 3528, A63H 3340

Patent

active

061232297

ABSTRACT:
A water discharge device, particularly a toy water gun, includes a portable housing containing a reservoir for a quantity of water; a discharge control device for controlling the discharge of water from the housing; and a hand-operated pump for manually pumping water from the reservoir through the discharge control. The discharge control device includes an expansible chamber having an inlet connected to the pump, an outlet through which the water is discharged, and a pressure-responsive valve controlling the outlet. The valve is normally closed to permit expansion of the reservoir and a build-up of water pressure during the pumping of water by the pump into the reservoir, but automatically opens when a predetermined pressure is reached in the chamber to discharge water through the outlet.

REFERENCES:
patent: 4257460 (1981-03-01), Paranay et al.
patent: 4593858 (1986-06-01), Pacht
patent: 4678004 (1987-07-01), Rosenberg
patent: 4781217 (1988-11-01), Rosenberg
patent: 4854480 (1989-08-01), Shindo
patent: 5099876 (1992-03-01), Rosenberg
patent: 5529525 (1996-06-01), Deal
patent: 5758800 (1998-06-01), D'Andrade
patent: 5799828 (1998-09-01), Crawford

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