Windshield wiper system

Details Windshield wiper system Windshield wiper system

1992-01-24

1994-10-11

Ro, Bentsu

Electricity: motive power systems

Periodic, repetitious or successive operations control of...

318254, 318259, 318DIG2, B60S 108

Patent

active

053550617

ABSTRACT:
The present invention is an improved windshield wiper assembly. The assembly includes a wiper blade which undergoes oscillatory rotary motion and is swept back and forth between two extreme locations across a windshield to remove rain and other precipitation from the windshield. A brushless DC motor has its output shaft connected to the wiper assembly. The foregoing results in rotary oscillation of the blade and permits the elimination of the four-bar mechanism which is typical of prior art wiper assemblies. The rotary motion of the blade in either direction is decelerated when the blade reaches a preselected position between two extreme locations.

REFERENCES:
patent: 3721878 (1973-03-01), Gumbert
patent: 4405887 (1983-09-01), Tamura et al.
patent: 4614903 (1986-09-01), Betsch et al.
patent: 4665488 (1987-05-01), Graham et al.
patent: 4670695 (1987-06-01), Licata et al.
patent: 4866357 (1989-09-01), Miller et al.

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