Purging and expansion mechanism
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United States of America Patent
Stats
-
Feb 16, 1982
Grant Date -
N/A
app pub date -
Jan 14, 1981
filing date -
Jan 14, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A housing for an electroacoustic transducer includes a filling or access port for introducing an inert liquid into the chamber defined by the housing. The access port includes a bubble trap and a vent for extracting gaseous bubbles from the fluid fill. The structure of the access port also comprises a substantially zero spring pressure expansion cavity for the fluid.
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