Medical gas alarm system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5057822
SERIAL NO

07578625

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A medical gas alarm system is provided which includes a sensor unit pneumatically connected to a medical gas supply line and a switch connected to a valve in the supply line for detecting the open condition of the valve. In the event either the sensor detects a high pressure or low pressure condition in the supply line or the switch is activated by closing of the valve, an alarm signal is received by an alarm module and an alarm is activated. The alarm may be visual, audible or both. During normal operations, the alarm module displays both a system on condition and a digital display indicating the pressure in the supply line. The invention also includes a method of monitoring the condition of a medical gas delivery system which includes sensing the pressure in the gas supply line, detecting the open condition of the valve, transmitting an alarm signal to an alarm module in response to alarm conditions detected either as a result of improper pressure or valve closure, and generating a humanly perceptible alarm warning in response to receipt of an alarm signal.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
PURITAN-BENNETT CORPORATION10800 PFLUMM ROAD LENEXA KANSAS 66215-2198 UNITED STATES OF AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoffman, Richard E Overland Park, KS 13 539

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