Movable or removable closures – Stored in housing – Reciprocates vertically in and out of housing
Patent
1988-03-11
1989-03-07
Kannan, Philip C.
Movable or removable closures
Stored in housing
Reciprocates vertically in and out of housing
49441, 49491, 49502, E06B 716
Patent
active
048094633
ABSTRACT:
A window frame of rubber, or the like covering material, has two U-shaped sealing strips at opposite surfaces of the window. A respective U-shaped cross-section reinforcing strip insert is embedded in each of the sealing strips. A bridge joins the legs of the two sealing strips near the window. The sealing strips and the bridge include projecting fingers which engage the window surface. The bridge is removed from the bottom of the window cutout, and the bridge instead hangs down to define guides for the sides of the window as it moves down. Each reinforcing insert is a high tensile and compressive strength metal strip, but is also flexurally elastic and is smooth on the outside and is developed approximately U-shaped in cross-section. The window frame has ends which are butted and butt vulcanized, with the butt vulcanization place being free of the reinforcement insert.
REFERENCES:
patent: 3401075 (1968-09-01), Jackson
patent: 3479768 (1969-11-01), Smadja
patent: 4308305 (1981-12-01), Albrecht
patent: 4442634 (1984-04-01), Kimura
patent: 4470223 (1984-09-01), Mesnel
Buller Ludger
Hemmis Ludger
Schroder Franz
Gebr. Happich GmbH
Kannan Philip C.
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