Windshield wiper having reduced friction characteristics
OwnerScott D. Sharabura, Michael E. Allen +3inventors
InventorsScott D. Sharabura, Michael E. Allen, Jeannie Holmes, Victor K. Paulsen, Subramaniam Shanmugham
Life of this patent
Estimating the term…
Abstract
A wiper blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 and 42 weight percent. The average particle size of the friction-reducing additive is preferably less than about 25 microns, thereby permitting extrusion of the compound into the shape of a wiper blade. Polytetrafluoroethylene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used.
Claims1
A windshield wiper comprising:
- a frame adapted to be attached to a vehicle;
- a wiper blade attached to the frame;
- and
- wherein the wiper blade is made from a mixture including a methyl vinyl silicone polymer from about 22 to 55 weight percent, a filler from about 35 to 50 weight percent, and polytetrafluoroethylene in an amount of from about 5 to 42 weight percent, the polytetrafluoroethylene having an average particle size of less than about 25 μm.
Dependencies are inferred from the claim text.