Apparatus for cleaning and/or coating
US4192038A · kind A · utility
Inventors
Key dates
| Filing date | Dec 22, 1978 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Dec 22, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S2001/3837
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Apparatus for cleaning and/or coating generally smooth surfaces and the like comprising a generally elongated unitary movable member including a pair of spaced apart and generally parallel blade projections, each extending from and along one surface of the unitary member and being adapted to contact the surface such that whenever said unitary member moves in one direction, one of the projections serves as a leading blade for removing surface dirt from the surface, and the other of the projections serves as a trailing blade which functions to evenly wipe the surface. The other projection also serves as a leading blade which removes the dirt from the surface and the one projection serves as a trailing blade for evenly wiping the surface in response to movement of the wiper member in the opposite direction. The apparatus also contemplates conduit means connected to the unitary member between the projections such that it is spaced from the surface for directly applying an appropriate fluid onto the surface between said blade projections for cleaning and/or coating the surface. In a preferred embodiment the apparatus is a windshield wiper which is adapted to clean windshields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.