Wiper blade rubber
US4638525A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1985 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Jul 23, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24628
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wiper blade rubber is disclosed. The wiper blade rubber comprises a matrix formed of rubber made preponderantly of EPDM and vulcanized with a peroxide and a lip part having the portions thereof for sliding contact with the outer surface of a wind shield formed of chlorinated diene type rubber. The lip part has the opposite lateral sides in the direction of thickness of the leading end thereof formed of diene type rubber containing a chlorinated layer on the surface thereof, with the matrix exposed to sight at the leading edge of the lip part between the opposite lateral sides of diene type rubber. The diene type rubber in each of the opposite lateral sides has the outer surface thereof chlorinated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.