Variable opening seal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 7, 1995
Issued Date -
N/A
app pub date -
Apr 21, 1994
filing date -
Oct 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A variable opening seal defining a passageway between a first environment and a second envoronment is provided. The seal includes an elastomeric member having a first end connected to the first environment, a second end connected to the second environment, and an internal passageway extending between its first and second ends. Selective rotation of the first end of the elastomeric member relative to the second end of the elastomeric member causes the elastomeric member to (a) wrap upon itself so as to selectively close the internal passageway, or (b) selectively unwrap an elastomeric member previously wrapped upon itself so as to selectively open the internal passageway.
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