Trigger control for air tool handle

Details Trigger control for air tool handle Trigger control for air tool handle

1986-12-05

1988-10-11

Michalsky, Gerald A.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

91461, 173169, F16K 31122

Patent

active

047765615

ABSTRACT:
A trigger for a fluid operated tool has a control with a pilot valve which when open pressurizes a chamber to cause a throttle valve to open. When closed, the pilot valve restricts fluid flow and reduces fluid pressure in the chamber, permitting the throttle valve to be closed. A continuously variable trigger control is also featured for varying the fluid flow rate to the tool.

REFERENCES:
patent: 787347 (1905-04-01), Templin
patent: 1112564 (1914-10-01), Schroeder
patent: 2426941 (1947-09-01), Mercier
patent: 2831465 (1958-04-01), Perry
patent: 3323602 (1967-06-01), Lysell
patent: 3326240 (1964-08-01), McConnaughay
patent: 3666027 (1972-05-01), Sauerwein et al.
patent: 3718313 (1973-02-01), Miller
patent: 3924693 (1975-12-01), Whitehouse
patent: 3983947 (1976-10-01), Wills et al.
patent: 4258799 (1981-03-01), Eckman

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