Seal for use with a movable rod

Details Seal for use with a movable rod Seal for use with a movable rod

2005-04-12

2005-04-12

Miller, William L. (Department: 3677)

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

C277S634000, C123S188600

Reexamination Certificate

active

06877749

ABSTRACT:
An apparatus for and method of providing a seal (300) for a movable rod (111) is described. The seal includes a flexible material (303) and a rigid seat (305) that may be utilized as a spring seat. The flexible material (303) has an opening with annular grooves and/or bumps (301) that provide a seal with the rod (111) when it moves axially and/or non-axially, for example, within a cylinder (109) in which the rod (111) and seal (300) are disposed.

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patent: 6571761 (2003-06-01), Leimer
patent: 6647943 (2003-11-01), Leimer et al.

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