Gas spring with end position damping

Details Gas spring with end position damping Gas spring with end position damping

2005-07-20

2008-09-30

Burch, Melody M (Department: 3683)

Brakes

Internal-resistance motion retarder

Valve structure or location

C188S322190, C188S313000

Reexamination Certificate

active

07428953

ABSTRACT:
The invention relates to a gas spring with end position damping having a piston-cylinder unit which is provided with two identically configured pistons arranged in a mirror-like image. Each piston has two axially extending parts defining an annular groove therebetween. The groove is configured to receive an annular sealing ring operative to axially move within the groove. The groove, the pistons and cylinder are configured with an arrangement of flow passages providing damping at the end of the push-in and push-out strokes of the piston.

REFERENCES:
patent: 4230309 (1980-10-01), Schnitzius
patent: 4466514 (1984-08-01), Möolders et al.
patent: 4467899 (1984-08-01), Möolders et al.
patent: 4909488 (1990-03-01), Seibert et al.
patent: 5157806 (1992-10-01), Wartian
patent: 5477589 (1995-12-01), Lan
patent: 5738191 (1998-04-01), Forster
patent: 5887857 (1999-03-01), Perrin
patent: 5971117 (1999-10-01), Grundei et al.
patent: 6336624 (2002-01-01), Kulhavy
patent: 6681906 (2004-01-01), Sasse
patent: 7111711 (2006-09-01), Grundei
patent: 2002/0038599 (2002-04-01), Mintgen et al.
patent: 2003/0006539 (2003-01-01), Bertram et al.
patent: 201 07 426 (2001-08-01), None
patent: 0 198 180 (1986-10-01), None
patent: 0 786 607 (1997-07-01), None
patent: 0 798 485 (1997-10-01), None

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