Vibration adjustable spacer

Details Vibration adjustable spacer Vibration adjustable spacer

1982-12-06

1984-12-11

Stoner, Jr., Bruce H.

Brakes

Inertia of damping mass dissipates motion

361412, 361415, F16F 710, H05K 114

Patent

active

044873000

ABSTRACT:
A vibration adjustable spacer (10) is disclosed. In a preferred implementation spacers 10, 10', 10" are used to damp the vibrational resonance of a number of printed circuit boards (42, 44, 46) in an assembly (40). The spacer (10) has an adjustable snubbing member (30) which extends to abut an essentially stationary surface (7) when the board is accelerated in one direction and a pivotable member (22) operating such that retraction of the snubbing member is impeded when the board is accelerated in the opposite direction.

REFERENCES:
patent: 1352172 (1920-09-01), Brandon
patent: 2195041 (1940-03-01), von Schlippe
patent: 3085657 (1963-04-01), Preis
patent: 4054190 (1977-10-01), Wilkes
patent: 4386390 (1983-05-01), Hammond

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