Adjusting mechanism for a snap-acting Belleville washer

Details Adjusting mechanism for a snap-acting Belleville washer Adjusting mechanism for a snap-acting Belleville washer

1978-03-20

1979-10-02

Tolin, Gerald P.

Machine element or mechanism

Automatic operation or control

200 83P, 200 83S, H01H 3524

Patent

active

041693906

ABSTRACT:
A pressure control assembly having a snap-acting Belleville washer responsive to fluid pressure, and a switch actuating mechanism movable therewith, includes an adjusting mechanism for the snap-acting Belleville washer. The adjusting mechanism includes at least one pin which can be moved along the surface of the Belleville washer to change the Belleville washer's pivot point by increasing or decreasing its lever arm, thus varying its snap pressure. In the preferred embodiment, there are three pins which extend through aligned slots in an upper and lower plate and the pins can be moved radially inwardly and outwardly by rotating the lower plate relative to the upper plate.

REFERENCES:
patent: 2824919 (1958-02-01), Davis
patent: 3036173 (1962-05-01), Perkins
patent: 3133171 (1964-05-01), Griffith
patent: 3302269 (1967-02-01), Cooper
patent: 3584168 (1971-06-01), Halpert
patent: 3588395 (1971-06-01), Hersey
patent: 3816685 (1974-06-01), Fiore

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