Device responsive to shock forces

Details Device responsive to shock forces Device responsive to shock forces

1984-11-15

1986-08-05

Herrmann, Allan D.

Machine element or mechanism

Automatic operation or control

137 38, G05G 1700, F16K 1736

Patent

active

046035915

ABSTRACT:
A device adapted to be actuated by seismic forces or other shock forces, to operate a valve or other controlled unit automatically when the device senses such forces. The device includes a support structure on which a weight is supported in a predetermined position relative to which the weight is displaceable laterally by shock forces in a manner causing a coacting element to be moved by the weight and actuate the controlled unit. Releasable holding means actuated by the weight function to retain the specified coacting element against movement in a direction to actuate the controlled unit so long as the weight remains in its predetermined normal position, to thereby prevent undesired actuation of the element and controlled unit by transitory forces which do not displace the weight laterally.

REFERENCES:
patent: 2017274 (1935-10-01), Breitenstein
patent: 2206067 (1940-07-01), Waltamath
patent: 2637331 (1953-05-01), Sullivan
patent: 2927982 (1960-03-01), Slough
patent: 3878858 (1975-04-01), Yamada
patent: 4007643 (1977-02-01), Matsushita
patent: 4178492 (1979-12-01), Roesch et al.
patent: 4185507 (1980-01-01), Domyan
patent: 4207912 (1980-06-01), Ichikawa
patent: 4261379 (1981-04-01), Berry

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