Method of making a backing strip for extruded windshield wiper s

Details Method of making a backing strip for extruded windshield wiper s Method of making a backing strip for extruded windshield wiper s

1996-08-09

1997-12-16

Graham, Gary K.

Metal working

Method of mechanical manufacture

Structural member making

29558, 15240451, 15250452, B60S 138

Patent

active

056971567

ABSTRACT:
A rail forming part of a backing strip for a windshield wiper squeegee is formed from a blank comprising a flat metal strip of narrow width which is formed with an offset portion that extends transversely on a longitudinally axis of the strip so as to protrude on one side, a claw retention slot being edge-punched from the offset portion and a pair of rubber squeegee-retaining barb elements being formed opposite from the offset portion so as to retain the squeegee to the backing strip.

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patent: 5023972 (1991-06-01), Bauer et al.
patent: 5231730 (1993-08-01), Schmid et al.

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