Pressure switch assembly

Details Pressure switch assembly Pressure switch assembly

1992-04-03

1994-06-07

Denion, Thomas E.

Expansible chamber devices

Effective area of working member end face selectively variable

With diaphragm

92 59, 92151, 200 82R, F01B 3100

Patent

active

053179544

ABSTRACT:
The present invention provides a pressure switch assembly for monitoring a source of fluid pressure. In one embodiment, the pressure switch assembly senses a variation of fluid pressure for actuation of a micro-switch to open or close an electric circuit. In another embodiment, the pressure switch assembly provides a self contained cluster of piston members which are selectively interengagable to permit a variety of pre-determined pressure ratings to act on the pressure switch assembly in response to a fluid pressure source, the cluster being manually reorganizable without adding or removing any parts to provide one valve assembly which may be responsive to a number of pre-selectable pressure ratings.

REFERENCES:
patent: 676251 (1901-06-01), Hagman
patent: 3168353 (1965-02-01), Horowitz
patent: 3414693 (1968-12-01), Watson et al.
patent: 3464741 (1969-09-01), Falk
patent: 3677005 (1972-07-01), Estlick
patent: 5155310 (1992-10-01), Goans

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