Differential pressure switch with square diaphragm plate support

Details Differential pressure switch with square diaphragm plate support Differential pressure switch with square diaphragm plate support

1982-02-22

1984-02-21

Scott, J. R.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83A, 200 83Y, 200 83W, H01H 3534

Patent

active

044332190

ABSTRACT:
A miniaturized differential pressure switch comprising a pair of matched square housing sections with a square diaphragm supporting a flat square diaphragm plate which bears against a compression spring that is flexed to open an electrical contact in dependence upon the pressure differential. The compression spring is removably mounted for exchange of springs to vary the range of operation of the switch. The housing section that defines the low pressure chamber provides means for mounting a heat sink that is used for the support of components required for an electronic relay. The switch is suitable for actuation by extreme low pressure, such as 0.01 inch water column.

REFERENCES:
patent: 3407277 (1968-10-01), Chapin
patent: 3852547 (1974-12-01), Dietz
patent: 3911393 (1975-10-01), Biggs
patent: 4085305 (1978-04-01), Dietz
patent: 4104495 (1978-08-01), Jones et al.

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