Motors: expansible chamber type – Working member position responsive motive fluid control – Exhaust control
Reexamination Certificate
2011-01-11
2011-01-11
Lazo, Thomas E (Department: 3745)
Motors: expansible chamber type
Working member position responsive motive fluid control
Exhaust control
C091S394000
Reexamination Certificate
active
07866252
ABSTRACT:
A gasket includes a damping buffer (1) for a piston (2) that can be charged with a pressure medium and that can be moved back and forth axially in a cylinder pipe (3) and includes at least one static seal (4) for sealing the cylinder pipe (3) vis-à-vis a cover (5) connected to the face of the cylinder pipe (3) and a dynamic seal (6) having at least one dynamically loaded sealing lip (7) that, during the proper use of the gasket, can be laid against the surface (8) to be sealed of a damping journal (9) that is connected to and axially movable back and forth with the piston (2) and that has at least one flow-guiding connection opening (10) that connects the axial faces (11, 12) of the gasket.
REFERENCES:
patent: 3805672 (1974-04-01), Pekrul
patent: 19600180 (1996-08-01), None
patent: 1 447 571 (2007-08-01), None
patent: 2658872 (1991-08-01), None
patent: 2658872 (1991-08-01), None
patent: 57-205403 (1981-06-01), None
Carl Freudenberg KG
Lazo Thomas E
Pearl Cohen Zedek Latzer LLP
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