Window glaze cleaning

Details Window glaze cleaning Window glaze cleaning

1989-06-13

1990-09-11

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Wiping

15 501, A47L 100

Patent

active

049559249

ABSTRACT:
A window glaze cleaning device comprises an outer frame and an inner frame which have magnets attached so that when they are placed face-to-face on opposite glazings of a window, the outer frame can be moved, by movement of the inner frame, over the outer glazing. The frames have bearings, e.g. air bearings to reduce friction, and the outer frame, which is counter-weighted, has nozzles for spraying cleaning liquid on to the outer glazing, a scrubber which may be positioned for cleaning the outer glazing, and a wiper blade which may be positioned for removing the cleaning liquid therefrom as is done in conventional window cleaning. The outer frame is counter weighted by pulleys on rocker arms which move the outer frame away from the window when it is to be repositioned.

REFERENCES:
patent: 3461476 (1969-08-01), North
patent: 3646630 (1972-03-01), Russell
patent: 3983591 (1976-10-01), Ohtaki et al.
patent: 3999242 (1976-12-01), Maruyama et al.

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