Patent ID: 6209882
Filing Date: 2001-04-03
Classification: F16D,F16J

Abstract:
A lip seal for being axially fixable in a cylindrical part of a housing and creating a seal between a first cylindrical surface of a cylindrical housing and a second cylindrical surface of a piston, comprising:a first sealing lip directable against the first cylindrical surface of the housing for forming a first contact seal;a second sealing lip directable against the second cylinder surface of the piston for forming a second contact seal, wherein said first sealing lip and said second sealing lip are directable against the first and second cylinder surfaces for forming a seal between spaces with different media and pressures; anda supporting bead on an outer diameter of the lip seal for forming a third contact seal against the first cylindrical surface of the housing,wherein said second sealing lip is arranged axially between said first sealing lip and said supporting bead and said second contact seal being the sole portion of said lip seal arranged for contacting said second cylinder surface of the piston.