Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1987-10-26
1989-08-01
Feldman, Peter
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525034, 1525035, 1525036, 219203, B60S 134
Patent
active
048522040
ABSTRACT:
Windshield wiper structure includes a wiper blade for engaging a windshield of a vehicle, and supporting elements including a metallic wiper blade carrier for carrying the blade, a metallic wiper arm connected to the carrier and pivotally mountable through a metallic end piece on a metallic post for reciprocating rotary motion about the post, a metallic spring engaging the post and the wiper arm for selectively resiliently urging the blade against or away from the windshield, and an electrical lead connected to the spring for connection to the electrical system of the vehicle. The structure uses the spring as a heating element for tending to melt snow and ice from the wiper blade and windshield. The supporting elements are electrically conductive and heat up with the spring. The blade and the supporting elements are coated with a non-wettable plastic material, a preferred example of which is polytetrafluoroethylene, which resists ice build-up.
REFERENCES:
patent: 2677143 (1954-05-01), Blaney
patent: 2908028 (1959-10-01), Runton et al.
patent: 3461477 (1969-08-01), Ikner
patent: 3606630 (1971-09-01), Haas
patent: 3882567 (1975-05-01), Herzog
patent: 4342126 (1982-08-01), Neefeldt
Craig Richard A.
Feldman Peter
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