Protected swivel

Details Protected swivel Protected swivel

1995-12-08

1998-06-30

Dorner, Kenneth J.

Joints and connections

Articulated members

Including static joint

403 60, 403164, 403165, 277 29, F16D 112

Patent

active

057723508

ABSTRACT:
A protected swivel has first and second members connected in swiveling engagement and a sleeve overlaying and enclosing at least a portion of each of the first and second members. The sleeve is coupled in sealing engagement with the first member to swivel with the first member. A first seal is interposed between the sleeve and the second member for sealing engagement of the sleeve with the first member. A second seal extends between the first member and the second member. The second seal may include a barrier layer of a viscous material. A swivel bearing is interposed between the first and second swivel members, with the second seal extending between the bearing and the second swivel member.

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patent: 5529421 (1996-06-01), Epkens
patent: 5607248 (1997-03-01), Hasse

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