Brakes – Internal-resistance motion retarder – Including seal or guide
Patent
1991-02-20
1992-07-07
Peters, Jr., Joseph F.
Brakes
Internal-resistance motion retarder
Including seal or guide
277188R, 92165R, 92168, F16F 712
Patent
active
051274973
ABSTRACT:
A lip seal ring for circumferentially contacting and sealing a shaft movable relative to the lip seal ring includes an elastomer ring having a sealing lip and an adhering face and a stiffening ring made of a deformation-resistant material. The stiffening ring is bonded to the elastomer ring at the adhering face. The stiffening ring is made of a phenolic resin, a polyamide resin or a polyimide resin. The elastomer ring is made of an oil-resistant elastomer based on a nitrile-butadiene rubber or a derivative thereof, and polyethylene or polypropylene.
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patent: 4750594 (1988-06-01), Siemann
patent: 4807890 (1989-02-01), Gorman
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patent: 5011121 (1991-04-01), Oriola et al.
patent: 5015000 (1991-05-01), Perini
patent: 5020421 (1991-06-01), Podlesak
Liethen Wilhelm
Pietsch Siegfried
Struckmeyer Horst F.
Treiber Hartmut
Ellis Christopher P.
Goetze AG
Peters Jr. Joseph F.
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