Wiper arm and blade assembly having tension inducing...

Details Wiper arm and blade assembly having tension inducing... Wiper arm and blade assembly having tension inducing...

2006-10-31

2006-10-31

Graham, Gary K. (Department: 1744)

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

C015S250440

Reexamination Certificate

active

07127774

ABSTRACT:
A wiper arm assembly including a primary bow and at least one secondary bow with a claw on at least one end of the secondary bow arranged to hold and guide a wiper blade. The secondary bow is rotatably attached to one end of the primary bow by means of a pivot. The wiper blade is arranged in a curved configuration such that when placed in the claws, a force is exerted on the secondary bow in a longitudinal direction of the primary bow. The primary and secondary bows contact each other by means of a projection extending from either the primary or the secondary bow, with the projection arranged to impose a force on the secondary bow in a longitudinal direction away from the primary bow.

REFERENCES:
patent: 2948011 (1960-08-01), Krohm
patent: 3629898 (1971-12-01), Plisky
patent: 3899800 (1975-08-01), Wittwer et al.
patent: 4137598 (1979-02-01), Sharp
patent: 4180885 (1980-01-01), Thornton et al.
patent: 4187576 (1980-02-01), Deibel et al.
patent: 1090122 (1960-09-01), None
patent: 1238385 (1971-07-01), None

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