Wiper blade rubber
US4716618A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 18, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Nov 18, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31826
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wiper blade rubber of an elongated configuration comprising a base portion of large thickness, a swinging portion substantially of a trigonal cross section, a neck portion connecting the base portion and the swinging portion and a thin plate-like lip portion disposed at the top end of the swinging portion. The basic material constituting most part of the base portion, the neck portion, the swinging portion and the lip portion is formed with soft and flexible rubber mainly composed of vulcanized ethylene-propylene rubber, and at least the surface of the lip portion is disposed with a surface layer constituted with a blended rubber composed of acrylonitrile-butadiene rubber and polyvinyl chloride resin and surface layer has a chlorinated surface layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.