Fluid handling – Systems – Multi-way valve unit
Patent
1992-01-27
1993-05-25
Michalsky, Gerald A.
Fluid handling
Systems
Multi-way valve unit
74527, 173169, 251111, F15B 1301
Patent
active
052131360
ABSTRACT:
A device for retaining a depressed reversing valve in the depressed position which is operable by the fingers or thumb of one hand to accomplish both the depressing and locking motions and the unlocking motion when it is desired to return the tool to conventional push to reverse operation. This is accomplished by a notched rotary sleeve mounted to the tool housing.
REFERENCES:
patent: 813110 (1906-02-01), Norling
patent: 3083944 (1963-04-01), Doeden
patent: 3298284 (1967-01-01), Alexander
patent: 3357677 (1967-12-01), Tasker
patent: 3510099 (1970-05-01), Crump
patent: 3535783 (1970-10-01), Thatcher
patent: 3826156 (1974-07-01), Dornaus
patent: 3861476 (1975-01-01), Borsum
patent: 3989113 (1976-11-01), Spring et al.
patent: 4416338 (1983-11-01), Nelson et al.
Sims Stephen F.
Thorp Phil D.
Michalsky Gerald A.
The Aro Corporation
Vliet Walter C.
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