Pressure gauge capable of automatically stopping supply of press

Details Pressure gauge capable of automatically stopping supply of press Pressure gauge capable of automatically stopping supply of press

1995-08-09

1997-06-24

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137557, 200 56R, 417 445, H01H 3536

Patent

active

056409923

ABSTRACT:
A pressure gauge includes a housing, a Bourdon tube with a closed end, an adjustment rod mounted rotatably in the housing, a microswitch installed on the adjustment rod, a gear, a sector wheel meshing with the gear, and a crank member interconnecting the sector wheel and the closed end of the Bourdon. Increase of the air pressure inside the Bourdon tube activates a portion of the assembly of the Bourdon tube and the sector wheel to contact the microswitch, so as to stop supply of compressed air from a pressure source to an article which is measured by the gauge. The adjustment rod can be rotated relative to the housing so as to change the distance between the microswitch and the portion of the assembly, thereby adjusting the preset upper limit value of the air pressure inside the Bourdon tube.

REFERENCES:
patent: 2159702 (1939-05-01), Klein et al.
patent: 2741987 (1956-04-01), Murphy et al.
patent: 4906977 (1990-03-01), Huey-Jeng
patent: 5286931 (1994-02-01), Murphy et al.
patent: 5289161 (1994-02-01), Huang

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