Composite valve for gas supply system

Details Composite valve for gas supply system Composite valve for gas supply system

2006-11-07

2006-11-07

Look, Edward K. (Department: 3751)

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

C251S033000

Reexamination Certificate

active

07131629

ABSTRACT:
An automatic-and-manual operation composite valve includes a valve main body into which an air is supplied and from which the air is discharged, a piston provided within the valve main body to be vertically movable by means of the air supplied or discharged and a snapping force of a spring attached to the piston, a valve body provided within the valve main body, and opened and closed by the piston, an air switch valve portion provided within the valve main body for switching air supply and air discharge and a manual operation mechanism portion for operating the air switch valve portion.

REFERENCES:
patent: 2577967 (1951-12-01), Hughes
patent: 2841359 (1958-07-01), Berck
patent: 3101924 (1963-08-01), Berck
patent: 3333812 (1967-08-01), Mueller
patent: 4615354 (1986-10-01), Bianchi
patent: 2561318 (1997-10-01), None

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