Windshield wiper arm
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United States of America Patent
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-
Apr 23, 1991
Grant Date -
N/A
app pub date -
Oct 20, 1989
filing date -
Oct 20, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The tension of a windshield wiper is adjusted by turning a nut which adjusts the rotational tension of a spring on the arm. The positioning of the nut is fixed by a second nut, a spring also forces the arm into a detent, holding the arm away from the windshield.
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Cited Art Landscape
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