Windshield wiper assembly
US3942212A · kind A · utility
Inventors
Key dates
| Filing date | Jan 21, 1975 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Jan 21, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S2001/3822
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The disclosed windshield wiper assembly includes a squeegee, a backing element operatively connected to the squeegee, and a superstructure which is removably connected to the backing element and adapted to be connected to a windshield wiper arm for urging the squeegee towards the windshield. The superstructure consists of an elongated primary yoke having a pair of spaced free ends; a pair of secondary yokes are respectively pivotally mounted on the free ends of the primary yoke and have pairs of opposed cooperating claws formed thereon for releasably engaging the backing element. The primary and secondary yokes each have a generally triangularly shaped transverse cross section, through substantially their entire length, defined by a pair of inclined longitudinally extending side surfaces and a substantially flat base which extends parallel to and in spaced relation from the backing element. The side surfaces of the primary and secondary yokes present inclined pressure surfaces to an air stream moving over the surface to be wiped whereby downward components of force are produced on the yokes to increase the downward pressure on the squeegee. The backing element includes specially fo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.