Closure device for the fluid delivery line of a...

Details Closure device for the fluid delivery line of a... Closure device for the fluid delivery line of a...

2005-04-19

2005-04-19

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Mechanical movement actuator

Lever

C251S231000, C251S014000, C239S525000

Reexamination Certificate

active

06880803

ABSTRACT:
In a closure device for the fluid delivery line of a high-pressure cleaning apparatus having arranged in the fluid delivery line a closure member which is pressed with a closing force against a valve seat and thereby closes the fluid delivery line, and which is liftable off the valve seat by a mechanical actuating element displaceable by a hand lever and extending in a sealed manner out of the fluid delivery line, when the hand lever is moved in the direction of an open position, in order to reduce the holding forces when the hand spray gun is open, it is proposed that downstream of the valve seat in the fluid delivery line a displaceably mounted piston extend in a sealed manner out of the fluid delivery line and upon being pushed out of the fluid delivery line cooperate with the hand lever in such a manner that the hand lever is moved in the direction towards its open position.

REFERENCES:
patent: 2283541 (1942-05-01), Dodson
patent: 2451559 (1948-10-01), Kirkby
patent: 5329960 (1994-07-01), Bello
patent: 5695120 (1997-12-01), Kingsford
patent: 6626382 (2003-09-01), Liu
patent: 1 137 103 (1962-09-01), None
patent: 81 18 510 (1981-09-01), None
patent: 31 09 845 (1982-01-01), None
patent: 35 27 922 (1987-02-01), None

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