Intermittent windshield wiper
US5525879A · kind A · utility
10Cited by
13References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1994 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Sep 30, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S318/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for finely adjusting the dwell period for an intermittent windshield wiper. A multi-position switch establishes a maximum delay and a delay request. A processor reads the switch setting and senses the timing of a positioning movement relative to the timing of the next preceding wiper blade stroke. When the elapsed time between those events is intermediate the maximum delay and the delay request, the dwell period is set equal to the elapsed time. Otherwise the dwell period is set equal to the maximum delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.