Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1986-04-16
1987-08-18
Feldman, Peter
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
74 70, 74 75, 74600, B60S 122, B60S 124
Patent
active
046867333
ABSTRACT:
A retractable wiper apparatus is disclosed in which two cam members are mounted about a drive shaft, the cam members serving to retain a detent in a locked position during rotation of the drive shaft in the forward direction and during the wiping operation. Upon reversal of the drive shaft rotational movement, the detent is released by the cam members and the wiper is placed in a retracted position.
REFERENCES:
patent: 3800624 (1974-04-01), Klement et al.
patent: 3942385 (1976-03-01), Westerdale
patent: 4400844 (1983-08-01), Hayakawa et al.
patent: 4454626 (1984-06-01), Schmidt et al.
patent: 4559845 (1985-12-01), Fallows
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