Method and means for powering portable oxygen supply systems
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United States of America Patent
Stats
-
Dec 6, 1994
Grant Date -
N/A
app pub date -
Jul 1, 1993
filing date -
Jul 1, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Portable gas dispensing systems of the type in which pulsed doses of a respirating gas such as oxygen are supplied to a patient with breathing difficulties are provided with means to generate electricity from energy extracted from the expanding gas rather than relying solely upon batteries for power to operate the system. A pneumatic motor, which may be integral with the system dose metering means, is powered by expanding gas and drives an electrical generator to produce sufficient electricity to at least supplement that required for system operation allowing for an increase in the service time per fill or a decrease in system weight or both.
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