Switch with post-assembly calibration access

Details Switch with post-assembly calibration access Switch with post-assembly calibration access

1989-01-09

1990-10-30

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

73725, 200 51R, 200 82R, 338 42, H01H 3534

Patent

active

049670476

ABSTRACT:
A fluid pressure transducer with an electrical switch structure therein including a conductor which is movable relative to fixed contacts as influenced by the force of internal spring forces whereas the relative positioning of a spring's end in the housing is adjustable after the transducer's assembly thereby effectively calibrating the switch's opening and closing characteristics relative to a predetermined fluid test pressure.

REFERENCES:
patent: 3321594 (1965-07-01), Reise et al.
patent: 3504324 (1968-05-01), Creager
patent: 4255630 (1981-03-01), Hire et al.
patent: 4449112 (1984-05-01), Gould
patent: 4452202 (1984-06-01), Meyer
patent: 4524255 (1985-06-01), Haag
patent: 4581941 (1986-04-01), Obermann et al.
patent: 4648277 (1987-03-01), Obermann
patent: 4778956 (1988-10-01), Betterton

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