Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent
1998-07-15
1999-08-31
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
134 42, 1525001, 1525003, 1525004, 2392841, 2392842, B08B 700, B60S 146, B60S 148
Patent
active
059449101
ABSTRACT:
A method of washing a glass surface, such as, for example, a windshield or other vehicle window includes adjusting emission of a washing liquid relative to a wiper stroke cycle. The washing liquid is emitted from a plurality of positions arranged on a swinging wiper in a direction towards a forward-wiping side thereof, along the longitudinal direction of a blade rubber of the wiper. During a wiper stroke cycle, the washing liquid is emitted at least over a range of wiper travel extending from a forward swing starting point to a predetermined intermediate point located before a turning point of the stroke cycle where the forward swing ends and a backward return swing is commenced. In a further embodiment, a rate at which the washing liquid is emitted at the various emission points along the length of the blade rubber increases with an increase in the distance of a particular emission point as measured from the center of swinging rotation of the wiper.
REFERENCES:
patent: 3760451 (1973-09-01), Steed
patent: 3854161 (1974-12-01), Benson
patent: 4393341 (1983-07-01), Byrne
patent: 4811451 (1989-03-01), Roller
patent: 4920602 (1990-05-01), Kuehbauch
patent: 4922570 (1990-05-01), Hirohama et al.
patent: 5203049 (1993-04-01), Nogawa
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