Sealing and wiping arrangement including inflatable chamber

Details Sealing and wiping arrangement including inflatable chamber Sealing and wiping arrangement including inflatable chamber

1991-11-13

1994-08-23

Simone, Timothy F.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525010, 1525002, 1525019, 49377, 494771, 49502, B60S 146, B60S 156, B60S 138

Patent

active

053394887

ABSTRACT:
A sealing strip adjacent a slidable window glass in an automobile body, provides a sealing lip which is mounted on an air-tight hollow chamber having two relatively rigid sides stiffened by a metal carrier. The third side is a relatively flexible wall. Expansion of the chamber by air pressure pushes the flexible wall outwardly so that a leg pivots the lip out of engagement with the window glass. In this configuration, a further chamber can be expanded by air pressure so that a wiper is caused to move into contact with the face of the window glass. As the window glass is raised or lowered, this wiper removes moisture and prevents smearing. Partial evacuation of the chambers retracts the flexible wall, thus pulling the lip into sealing engagement with the window glass, and also causes the wiper to move out of contact with the glass. A water jet may also be provided to spray cleaning water onto the glass when in the closed position.

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