Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Patent
1990-05-03
1991-10-22
Schwadron, Martin P.
Valves and valve actuation
With correlated flow path
Valve operated by joining flow path sections
285317, 285354, F16L 1504
Patent
active
050588591
ABSTRACT:
A screw-joint type pneumatic tool connector, which comprises an air inlet coupling having received therein a conical spring and a valve, a lock nut connected to the front end of said air inlet coupling by means of screw joint, a stepped control bush having a C-shaped retainer ring externally mounted thereon and being connected to the rear end of the air inlet coupling with a seal ring set therebetween, a socket sleeved on the control bush with an air outlet coupling secured thereto at its rear end by means of screw joint. By means of moving the air outlet coupling inward inside the socket, the valve is moved away from the seal ring to form an air passage for the passing therethrough of compressed air to drive a tool to operate.
REFERENCES:
patent: 2337096 (1943-12-01), Geiger
patent: 2842381 (1958-07-01), Franck
patent: 4493475 (1985-01-01), Baird
patent: 4699356 (1987-10-01), Margrove et al.
Lee Kevin
Schwadron Martin P.
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