Pressure gauge

Details Pressure gauge Pressure gauge

1986-02-26

1987-08-11

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

G01L 708

Patent

active

046853367

ABSTRACT:
An improved gearless pressure gauge comprises a sensing member, an elastic member flexibly mounted with respect with the sensing member, a seat member carrying a helix capable of moving with the elastic member, and a rotary shaft including a fixed lateral pin laying on the helix which can be rotatably driven thereby responding to the movement of the sensing member under pressure, which in turn imparts through the elastic member and forces the helix to move upwardly, a pointer carried by the rotary shaft thus can give a pressure reading, the rotary shaft can return to its initial position when the pressure on the sensing member is removed by the restoring force of a spiral spring.

REFERENCES:
patent: 1310648 (1919-07-01), Clift
patent: 3975959 (1976-08-01), Larkin
patent: 4040298 (1977-08-01), Lee et al.
patent: 4347744 (1982-09-01), Buchanan

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