Windshield wiper assembly

Details Windshield wiper assembly Windshield wiper assembly

1975-01-21

1976-03-09

Feldman, Peter

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525032, B60S 138

Patent

active

039422127

ABSTRACT:
The disclosed windshield wiper assembly includes a squeegee, a backing element operatively connected to the squeegee, and a superstructure which is removably connected to the backing element and adapted to be connected to a windshield wiper arm for urging the squeegee towards the windshield. The superstructure consists of an elongated primary yoke having a pair of spaced free ends; a pair of secondary yokes are respectively pivotally mounted on the free ends of the primary yoke and have pairs of opposed cooperating claws formed thereon for releasably engaging the backing element. The primary and secondary yokes each have a generally triangularly shaped transverse cross section, through substantially their entire length, defined by a pair of inclined longitudinally extending side surfaces and a substantially flat base which extends parallel to and in spaced relation from the backing element. The side surfaces of the primary and secondary yokes present inclined pressure surfaces to an air stream moving over the surface to be wiped whereby downward components of force are produced on the yokes to increase the downward pressure on the squeegee. The backing element includes specially formed embossments located outwardly of the superstructure to provide stops for engagement with generally complementary shaped portions of the claws on the secondary yokes to prevent inadvertent removal of the backing member and squeegee from the superstructure.

REFERENCES:
patent: 2706305 (1955-04-01), Oishei
patent: 3408680 (1968-11-01), Heller
patent: 3616485 (1971-11-01), Quinlan et al.
patent: 3673631 (1972-07-01), Yamadai et al.
patent: 3757377 (1973-09-01), Hayhurst
patent: 3820188 (1974-06-01), Moorhead et al.
patent: 3849828 (1974-11-01), Cone
patent: 3867737 (1975-02-01), Arman

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