Wiper blade
First Claim
Patent Images
1. A wiper blade comprising an elongate cured rubber body having an upper grooved portion adapted for engagement with a backing member for maintaining the wiper blade in position;
- a base portion disposed along the grooved portion and comprising a wiping surface lip portion comprising the apex of the base portion;
at least one strip extending along at least a portion of the length of the base portion on one side of the wiping surface lip portion, the strip portion comprising a first vulcanized composition formed of a first base rubber and from about 1 to about 10 phr of a friction reducing element.
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Accused Products
Abstract
A wiper blade comprising an elongate cured rubber body having an upper grooved portion adapted for engagement with a backing member for maintaining the wiper blade in position; a base portion disposed along the grooved portion and comprising a wiping surface lip portion defining the apex of the base portion; and at least one strip extending along at least one side of the wiping surface lip portion, the strip portion comprising a vulcanized composition formed of a base rubber and from about 1 to about 10 phr of a friction reducing element.
64 Citations
17 Claims
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1. A wiper blade comprising an elongate cured rubber body having an upper grooved portion adapted for engagement with a backing member for maintaining the wiper blade in position;
- a base portion disposed along the grooved portion and comprising a wiping surface lip portion comprising the apex of the base portion;
at least one strip extending along at least a portion of the length of the base portion on one side of the wiping surface lip portion, the strip portion comprising a first vulcanized composition formed of a first base rubber and from about 1 to about 10 phr of a friction reducing element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- a base portion disposed along the grooved portion and comprising a wiping surface lip portion comprising the apex of the base portion;
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17. A wiper blade comprising an elongate cured rubber body formed of a natural rubber composition and having an upper grooved portion adapted for engagement with a backing member for maintaining the wiper blade in position;
- a base portion disposed along the grooved portion and comprising a wiping surface lip portion comprising the apex of the base portion;
a first strip extending along at least a portion of a first base portion lateral surface proximal said wiping surface lip portion, and a second strip extending along at least a portion of an opposite second base portion lateral surface proximal said wiping surface lip portion, at least one said strip portion comprising a first vulcanized composition formed of a natural rubber latex and from about 1 to about 10 phr of a friction reducing element comprising particulate polytetrafluoroethylene having an average particle agglomerate diameter in the range of from about 10 μ
m to about 35 μ
m, at least a portion of said friction reducing element forming at least one protuberance on an outer surface of at least one said strip portion.
- a base portion disposed along the grooved portion and comprising a wiping surface lip portion comprising the apex of the base portion;
Specification