Air pumping system for an automotive seat
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 13, 1999
Grant Date -
N/A
app pub date -
Jun 20, 1997
filing date -
Jun 20, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An inflatable lumbar support system for a vehicle seat includes an inflatable air cell, or cells, coupled by an air line to a motorized diaphragm pump. The outlet valve of the pump is in the form of an umbrella valve which serves not only to seal the pump on the intake strokes, but is of such character to provide the sole seal between the air cell and pump, thereby eliminating the need to have a separate external check valve between the pump and air cell to assure that the air cell does not leak once pressurized.
First Claim
Family
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Cited Art Landscape
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