Expansible chamber devices – Displacement control of plural cylinders arranged in... – Flexible wall-type working member
Patent
1983-01-19
1984-12-04
Garrett, Robert E.
Expansible chamber devices
Displacement control of plural cylinders arranged in...
Flexible wall-type working member
92 135, 92 91, 73732, 200 818, 74 8915, F15B 1524
Patent
active
044857276
ABSTRACT:
An improved switch point setting device for fluid process sensors monitoring a process pressure, including a cylindrical housing, an elongated threaded shaft rotatably mounted in the housing, and a movable post member with a threaded base portion threadably mounted on the threaded shaft within the housing and a dog-leg post portion extending from the housing to form a pressure set point. A coil spring within the housing biases the threaded base portion in positive threaded engagement with the threaded shaft. An O-ring provided around the base portion on each side of the post portion enables threadable movement of the base portion during set point adjustment while otherwise maintaining the base portion reliably in position.
REFERENCES:
patent: 2557929 (1951-06-01), Baak
patent: 2803718 (1957-08-01), Bloom et al.
patent: 2964601 (1960-12-01), Stockwell
patent: 3569647 (1971-03-01), Kiwalle
patent: 3952611 (1976-04-01), Cumming
patent: 4167896 (1979-09-01), Clements
patent: 4206912 (1980-06-01), Pearson
patent: 4323741 (1982-04-01), Krohn
Liquid Level Lectronics, Inc. Brochure, "Pneumatic Pressure Pilot".
Dyna-Trol Inc. Brochure, "Pressure Sentry".
Baker CAC Inc. Brochure, "Product Bulletin Type DEP Direct Dial Pilot", Feb. 1, 1979.
Automation USA Brochure, "Wellcheck High-Low Pressure Sensors".
Fisher Controls, 4100Z Series Pressure Controller, Nov. 1976, Bulletin 34.3:4100Z.
Barber Machinery Co. Limited Brochure, "Presco Pilot", Bulletin 660.
Jim Ellett; "New Pressure Control Pilot Solves A Pollution Problem".
Oil & Gas Journal, "Equipment/Literature", Dec. 17, 1979.
Controlonics Inc. Brochure, "Model PSHL Pressure Pilot".
Dixie Instrument Corp. Brochure, "BAPP Blind Automated Pressure Pilot".
Control Pilots Inc. Brochure, "JO PILOT".
ANOT Controls Corporation Brochure, "ANOT Model 1672 Pressure Valves".
Controlonics Inc. Brochure, "Model PSHL-P Panel Mounted Pressure Pilot With Pneumatic Set Points".
Ametek Controls Division Brochure; "Model 47 Low-Bleed Controllers and Transmitter".
Fisher Controls International Inc.
Garrett Robert E.
Kubly Dale A.
Nauman Timothy E.
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