Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1990-07-27
1992-07-07
Oberleitner, Robert J.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
2671401R, 267 35, 248562, B60G 1162, F16F 1300
Patent
active
051276364
ABSTRACT:
A damping device is disclosed, intended to be inserted between two rigid assemblies, comprising two rigid elements (1, 2) which can be fixed respectively to the two assemblies and, mounted in parallel between these two rigid elements, on the one hand a main spring (3) and, on the other hand, a damping system comprising in series a rigid case (7) filled with a viscous liquid (L), a piston (5) ending in a rigid foot (4) and immersed in the liquid and an auxiliary spring (9.sub.1, 9.sub.2). The case (7) is independent of the main spring (3), the auxiliary spring (9) is inserted between the case and the rigid element (2) to which this case is connected and the foot (4) is connected to the edge of an orifice of the case, which it passes through, by a sealed and deformable bellows (8). The case is partially defined by a sealed and flexible membrane (10) with limited movements.
REFERENCES:
patent: 2380899 (1945-07-01), Strachovsky
patent: 4399987 (1983-08-01), Cucelli et al.
patent: 4607828 (1986-08-01), Bodin et al.
patent: 4749173 (1988-06-01), Kanoa
patent: 4770396 (1988-09-01), Jouade
patent: 4921049 (1990-05-01), Kaiser et al.
Oberleitner Robert J.
Paulstra GmbH
Poon Peter M.
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