Air damper

Details Air damper Air damper

1999-03-01

2000-05-16

Schwartz, Chris

Brakes

Internal-resistance motion retarder

Including seal or guide

267120, 188300, F16F 936, F16F 500

Patent

active

060623527

ABSTRACT:
An air damper has a cylinder member provided at its opposite ends with openings. One opening is formed with a seal surface. A piston member is movable in the cylinder member along an axial direction of the cylinder member so as to generate a variation in pressure in the cylinder member. A cap member is provided on the one opening of the cylinder member. At least a portion of the cap member is capable of moving between a state where the cap member is in contact with the seal surface and a state where the cap member is separated from the seal member in correspondence with the variation in pressure caused by the movement of the piston member. Further, in a state where the cap member is separated from the seal surface, air in the cylinder member can flow out from a space between the cap member and the seal surface.

REFERENCES:
patent: 3963227 (1976-06-01), Molders
patent: 4166612 (1979-09-01), Freitag et al.
patent: 4303231 (1981-12-01), Reuschenbach et al.
patent: 4307874 (1981-12-01), Reuschenbach et al.
patent: 4856625 (1989-08-01), Oshida
patent: 5040645 (1991-08-01), Volpel et al.
patent: 5157806 (1992-10-01), Wartian
patent: 5697477 (1997-12-01), Hiramoto et al.
patent: 5975507 (1999-11-01), Cotter

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