Brakes – Internal-resistance motion retarder – With means compensating for change in temperature or viscosity
Reexamination Certificate
2006-02-28
2006-02-28
Burch, Melody M. (Department: 3683)
Brakes
Internal-resistance motion retarder
With means compensating for change in temperature or viscosity
C188S322210, C188S321110
Reexamination Certificate
active
07004292
ABSTRACT:
A cylinder has an interior space which contains a medium under pressure. A piston is displaceably arranged in the cylinder and has a piston rod which projects from the cylinder at one end of the cylinder. The piston rod is enclosed by an annular seal having an inner radially encircling circumference which bears against the piston rod and an outer radially encircling circumference which bears against the inner wall of the cylinder, a side facing the interior space to which the pressure of the medium is applied, and a side remote from the interior space supported on a supporting element. The supporting element, in turn, is supported on part of the cylinder. The supporting element includes a safety element which is designed to shorten its axial length during thermal overloading, as a result of which a passage opens from the interior space of the cylinder to the environment. The safety element is made of a melting or subliming material.
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Burch Melody M.
Cohen & Pontani, Lieberman & Pavane
Stabilus GmbH
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