Guide system with pneumatic stop for a movable component

Motors: expansible chamber type – Working member position responsive motive fluid control – Exhaust control

Reexamination Certificate

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C092S08500R, C092S169100

Reexamination Certificate

active

11168036

ABSTRACT:
In a guide system with a pneumatic stop structure comprising a cylinder with a piston including a piston seal element movably disposed in the cylinder and a piston rod connected to the piston and extending from the cylinder wherein a displacement chamber is formed at one side of the piston, the cylinder has a cross-section which steadily increases toward the end of the displacement chamber and the piston seal element which, in the area of the smallest cylinder cross-section is in sealing engagement with the cylinder wall is out of sealing contact with the cylinder wall at the opposite end of the cylinder where the cylinder has an increased diameter.

REFERENCES:
patent: 4048905 (1977-09-01), Souslin
patent: 4376472 (1983-03-01), Heyer et al.
patent: 5074389 (1991-12-01), Slocum
patent: 5884734 (1999-03-01), Hiramoto et al.
patent: 5887857 (1999-03-01), Perrin
patent: 6186512 (2001-02-01), Deppert et al.
patent: 6481336 (2002-11-01), May
patent: 6957807 (2005-10-01), Zimmer et al.
patent: 29521002 (1996-06-01), None
patent: WO 2004061327 (2004-07-01), None

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