Rotary sealing device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 23, 1985
Grant Date -
N/A
app pub date -
Apr 16, 1982
filing date -
Apr 21, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary sealing device for connecting a fixed gas supply pipe to a tube rotating about its axis. It comprises a first rotary member for receiving the fixed pipe, a second rotary member for receiving and sealing the rotary pipe and fixed to the first member, and a filter placed in a chamber made in the aforementioned members and forming an obstacle to the gas flow and consequently to an overpressure of said gas, opposing the entry into the said chamber of gas coming from outside the device.
First Claim
Family
International Classification(s)
Cited Art Landscape
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