Wiper device

Details Wiper device Wiper device

1982-03-10

1984-04-03

Feldman, Peter

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525016, 1525034, 296 781, B60S 134

Patent

active

044398867

ABSTRACT:
A wiper device capable of increasing urging force of a wiper blade against a windshield of a vehicle during wiping operation and decreasing urging force of the wiper blade during out of service thereof and resting the blade at its resting zone of the windshield. The wiper device comprises the wiper blade, a wiper arm having one end pivotably supporting the wiper blade, a drive means for providing swinging movement of the wiper arm, at least one biasing spring having one end connected to the wiper arm and a movable unit adapted to change biasing force of the spring, the spring having the other end connected to the movable unit. The wiper arm has the other end pivotally connected to a wiper head coupled to a wiper shaft driven by a drive means.

REFERENCES:
patent: 2043218 (1936-06-01), Anderson
patent: 2934965 (1960-05-01), Perry
patent: 3025554 (1962-03-01), Ziegler
patent: 4010976 (1977-03-01), Shields
patent: 4355838 (1982-10-01), Hickman
patent: 4370774 (1983-02-01), Bienert et al.

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