Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1994-06-01
1996-07-23
Graham, Gary K.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525073, 1525016, 15 2530, 1525025, B60S 136, B60S 144, B60S 170
Patent
active
055377050
ABSTRACT:
A windscreen wiper system has a wiper arm provided with a swivelling drive, a pivot bearing for a wiper blade being provided on the free end part of said wiper arm. The wiper blade can be moved into a rest position in the region of the lower edge of the windscreen in which it lies approximately parallel to the wiper arm. A control mechanism associated with the swivelling drive ensures parallel guiding of the rotary wiper blade and has a control element fastened to the vehicle with which a scanning element belonging to the wiper arm is associated. For transition into the rest position, a device for change-over from parallel to swivelling guiding of the wiper blade is provided. This comprises an adjusting drive which places the control mechanism out of action in a central working position and stops the rotary drive of the wiper blade.
REFERENCES:
patent: 2079399 (1937-05-01), Drew et al.
patent: 2279983 (1942-04-01), Goode et al.
patent: 2607065 (1952-08-01), Dahlgren
patent: 2624904 (1953-01-01), Wianco
patent: 2738536 (1956-03-01), Spencer, Jr.
patent: 2790195 (1957-04-01), Wrobel
patent: 3688334 (1972-09-01), Peterson
patent: 3831219 (1924-08-01), Deutscher
patent: 4040141 (1977-08-01), O'Steen
patent: 4447928 (1984-05-01), Schuch et al.
patent: 4782548 (1988-11-01), Wong
GB-A 2225218.
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