Dispensing – Outlet element operated by pressure of contents – Reciprocable – nonpivoted
Patent
1981-07-24
1983-09-27
Tollberg, Stanley H.
Dispensing
Outlet element operated by pressure of contents
Reciprocable, nonpivoted
251 44, F16K 31143
Patent
active
044063830
ABSTRACT:
A water gun having a barrel, a water inlet, a pistol grip and and a main body portion with an upper piston chamber in the main body portion communicating with the inlet and a lower valve chamber separated from the upper piston chamber. A piston is slidably mounted in the upper chamber and has an upper land engaging the inner wall of the upper chamber in non-sealing relationship and a lower land engaging the inner wall of the upper chamber in sealing relationship. A valve is slidably mounted in the lower chamber and includes a pair of spaced lands in sealing engagement with the inner wall of said lower chamber normally disposed on both sides of a port in a wall separating the upper chamber from the lower chamber when the gun is in inoperative position. A port also extends through the lower land and communicates the port in the wall with the area in the upper chamber above the lower land. A port in the body portion communicates the barrel with the lower chamber. The relationship between the ports, the piston and the valve pressure balances the gun so that water introduced under high pressure into the inlet ejects out of the nozzle with relatively little pull required on the trigger.
REFERENCES:
patent: 1651689 (1927-12-01), Freeze
patent: 2758811 (1956-08-01), Peterson
Jacobs Mark C.
Tollberg Stanley H.
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