Diaphragm type pressure sensor

Details Diaphragm type pressure sensor Diaphragm type pressure sensor

1991-01-10

1993-01-19

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73727, 73756, 338 4, G01L 708, G01L 904

Patent

active

051798611

ABSTRACT:
A diaphragm type pressure sensor comprises a transducer main body and a protective cover. The main body has a diaphragm portion, a support portion supporting the periphery of the diaphragm portion, and a trunk portion having a shoulder surface which surrounds the support portion and which forms a step surrounding the support portion. The support portion projects upwardly from the inner periphery of the shoulder surface, and is separated by the shoulder surface from the protective cover fitted over the trunk portion. Therefore, the diaphragm portion is not easily influenced by an external force applied to the trunk portion from the protective cover. The main body may further has an abutting surface which forms another step surrounding the support portion, and which abuts against a lower end of the protective cover.

REFERENCES:
patent: 2840675 (1958-06-01), Giovanni
patent: 3520191 (1970-07-01), Pien
patent: 3537318 (1970-11-01), Helin
patent: 4085620 (1978-04-01), Tanaka
patent: 4102210 (1978-07-01), Couston
patent: 4127840 (1978-11-01), House
patent: 4884451 (1989-12-01), Schulze
patent: 4934193 (1990-06-01), Hayata

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