Damper

Details Damper Damper

2005-11-29

2005-11-29

Nguyen, Xuan Lan (Department: 3683)

Brakes

Internal-resistance motion retarder

Including seal or guide

C267S196000, C267S064110

Reexamination Certificate

active

06968930

ABSTRACT:
A damper includes a cylinder, and a piston rod inserted into the cylinder through an opening portion of the cylinder. The piston rod includes front and base ends, and a frictional engaging member provided on an outer surface along a longitudinal direction thereof extending from a front end side toward the base end. A resistance device is disposed at the opening portion of the cylinder. The resistance device contacts the frictional engaging member and deforms elastically to provide frictional resistance to the piston rod as the piston rod is withdrawn from the cylinder.

REFERENCES:
patent: 3284841 (1966-11-01), Patriquin
patent: 4309027 (1982-01-01), Molders et al.
patent: 4629167 (1986-12-01), Kimura et al.
patent: 4760621 (1988-08-01), Stromquist
patent: 4765444 (1988-08-01), Bauer et al.
patent: 4948103 (1990-08-01), Bowden et al.
patent: 5697477 (1997-12-01), Hiramoto et al.
patent: D413508 (1999-09-01), Shibao
patent: 6325187 (2001-12-01), Boucher
patent: 6460839 (2002-10-01), Muller

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