Windshield wiper arm with hemmed distal end

Details Windshield wiper arm with hemmed distal end Windshield wiper arm with hemmed distal end

2005-10-12

2009-12-29

Graham, Gary K (Department: 3727)

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

Reexamination Certificate

active

07636981

ABSTRACT:
A wiper arm for a wiper assembly of an automotive vehicle, the wiper arm being formed in a single piece from a metallic blank and having an inner end portion of generally U-shaped configuration in cross-section that is formed by drawing the blank in a progressive die, and an outer end portion that is formed with a C-shaped configuration in cross-section, by hemming. The outer end portion has a central portion with edge portions that are reversely folded to underlie the central portion, edges of the edge portions being disposed in close proximity to one another. An end portion of the outer end portion of the wiper arm is reversely folded to be spaced from and underlie a portion of the outer end portion thereabove, and the end portion is provided with an opening by which a wiper blade may be attached to, or removed from, the wiper arm.

REFERENCES:
patent: 4932097 (1990-06-01), Kobayashi et al.
patent: 6473932 (2002-11-01), Igarashi
patent: 6505377 (2003-01-01), Merkel et al.
patent: 6732401 (2004-05-01), Rapp
patent: 6742216 (2004-06-01), Zimmer et al.

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