Signal coupling for humidifier container
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United States of America Patent
Stats
-
Apr 10, 1990
Issued Date -
N/A
app pub date -
Jun 28, 1989
filing date -
Sep 19, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hermetically sealed unitary liquid container of a thermoplastic material suitable for use in inhalation therapy is disclosed as having a signal coupling. A cupshaped female connector is adapted to be threaded onto a gas inlet coupling of the container. A stem portion of the female connector defines a signal gas passageway and a flat land. A flexible elastic sleeve occludes the signal gas passageway and lies continuous with the land. When a pressure buildup is experienced within the container, gas pressure will force gas out through the signed gas passageway, and past the sleeve, while generating an audible signal, e.g., a whistling sound.
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