Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1990-09-07
1991-10-15
Ng, Jin F.
Communications: electrical
Condition responsive indicating system
Specific condition
340603, 340606, 12820222, 12820523, 137554, 137557, G08B 2100
Patent
active
050578227
ABSTRACT:
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.
REFERENCES:
patent: 1210738 (1917-01-01), Ward
patent: 3529625 (1970-09-01), Ferrari
patent: 3807446 (1974-04-01), Driskell et al.
patent: 4176617 (1979-12-01), Pilipski
patent: 4345612 (1982-08-01), Koni et al.
patent: 4573115 (1986-02-01), Halgrimson
patent: 4598279 (1986-07-01), Nowacki et al.
patent: 4667669 (1987-05-01), Pasternack
patent: 4879547 (1989-11-01), Pryslak
Hofsass Jeffery A.
Ng Jin F.
Puritan-Bennett Corporation
LandOfFree
Medical gas alarm system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Medical gas alarm system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Medical gas alarm system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-993718