Raindrop detection wiper

Details Raindrop detection wiper Raindrop detection wiper

1991-01-23

1992-04-14

Shoop, Jr., William M.

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

318DIG2, 318443, 15250C, H02P 300

Patent

active

051051290

ABSTRACT:
A raindrop detection wiper is provided with a raindrop detector for detecting a raindrop, a wiper motor for actuating a wiper blade, an automatic stop mechanism for stopping the wiper blade at a predetermined position, a control mechanism comprising a current detector, a memory and the like for operating intermittently or stopping the wiper motor in accordance with a signal from the raindrop detector and memory data stored by the memory. According to this invention, it is possible to wipe the wiping surface automatically by detecting the raindrop and drive current of the wiper motor even in a very light rain.

REFERENCES:
patent: 4158798 (1979-06-01), Holt
patent: 4320329 (1982-03-01), Gille et al.
patent: 4495452 (1985-01-01), Boegh-Peterson
patent: 4499410 (1985-02-01), Iacoponi et al.
patent: 4625157 (1986-11-01), Phillimore
patent: 4689536 (1987-08-01), Iyoda
patent: 4710878 (1987-12-01), Iyoda
patent: 4748390 (1988-05-01), Okushima et al.

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