Wiper apparatus interlocking to washer

Details Wiper apparatus interlocking to washer Wiper apparatus interlocking to washer

1991-02-15

1992-04-14

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

318102, 318446, 318447, 318DIG2, B60S 108, B60S 146

Patent

active

051051346

ABSTRACT:
A wiper apparatus comprises a wiper switch, a washer motor, a washer switch for actuating the washer motor by its on-operation, a wiper motor actuated independently by on-operation of the wiper switch and interlockingly with the washer motor by the on-operation of the washer switch, and a controller for maintaining the wiper motor to rotate until the load applied on the wiper motor reaches predetermined value. According to this invention, the wiper blade never stops before the cleaning liquid is removed from the wiping surface by detecting frictional resistance between the wiper blade and the wiping surface as the motor load.

REFERENCES:
patent: 3582732 (1971-06-01), Kovalsky
patent: 3691442 (1972-09-01), Sheldrake
patent: 3716766 (1973-02-01), Suzuki
patent: 4010383 (1977-03-01), Grassmann
patent: 4916373 (1990-04-01), Al-Attar et al.

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