Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1994-12-21
1996-10-15
Graham, Gary K.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525025, 152503, 1525041, 152504, 74 31, 74 29, B60S 144, B60S 178
Patent
active
055641563
ABSTRACT:
An apparatus for wiping a window has a wiper, a first track substantially parallel to at least a portion of the window and a second track substantially parallel to and displaced from the first track. A first motorized drive wheel is provided for driving the wiper along the first track in a first direction and a second motorized drive wheel for driving the wiper along the second track in a second direction, opposite to the first direction, so as to wipe the window. The wiper is preferably designed to reduce drag-back of water across the window. In a preferred embodiment, curved connecting tracks connect between the ends of the first track and the second track so as to form a closed loop track. A single motorized drive wheel is used. The single motorized drive wheel may be driven by a motor rotatably associated with the wiper, or through a flexible drive cable by a remotely mounted motor. Other embodiments use a single substantially linear track in combination with a motor running unidirectionally.
REFERENCES:
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patent: 1746528 (1930-02-01), Gray
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patent: 2984855 (1961-05-01), Murray
patent: 4945600 (1990-08-01), Gastmann
patent: 5068942 (1991-12-01), Vrettos
Friedman Mark M.
Graham Gary K.
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