Forced ventilation system for motor vehicles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 17, 2000
Grant Date -
N/A
app pub date -
Jan 15, 1999
filing date -
Jul 19, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method is disclosed for making a forced ventilation apparatus (1) for equalizing a pressure difference between a passenger compartment and surroundings of a motor vehicle. The apparatus (1) includes a frame (2) made of hard plastics and delimiting an aperture (3), and a flat ventilation flap (7) made of an elastomer material and secured to the frame (2). A resilient restoring force counteracts opening movement of the ventilation flap (7) from a closed position in which the ventilation flap (7) rests on the frame (2) and closes the aperture (3) in the frame. The method comprises the step of injection-molding the ventilation flap (7) to the frame (2) in an opened position. To this end, the elastomer material is pressed from a free end of the ventilation flap (7) into a common contact area (8) of the ventilation flap (7) with the frame (2).
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Family
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Cited Art Landscape
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