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US3918525A Expired / Lapsed US ⏱️ 0.0 years remaining

Circulating system

Assignee: MECKLER GERSHON (45%)
•
Filing: 1974-09-20
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Granted: 1975-11-11
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Expires: 1994-09-20
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Abstract

Abstract A combined circulating and alarm apparatus is disclosed. The circulating apparatus includes a circulating system including means for circulating a heat transfer fluid from an equipment room and into heat-transfer relationship with a plurality of energy absorbing and/or energy supplying units, for example lighting fixtures, means for returning the circulated fluid to the equipment room, means effective to cause heat transfer with the returned fluid to control the temperature thereof, for example to absorb heat therefrom, and means for delivering the heat transfer fluid from the heat transfer means to the circulating means. Sprinkler heads are operatively connected to the circulating system. The apparatus also comprises means effective, in response to a change in a sensed condition, which change indicates a flow of heat transfer fluid from the circulating system, to cause a signal, and means operatively connected to the sensor means and effective, in response to a signal therefrom, to communicate a warning to a normally inhabited region such as the equipment room or a fire station.

Inventors

  • 👤 Gershon Meckler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 16:27
CPC Classifications
A; A62; A62B; A62B3/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 200 words
In a circulating system comprising means for circulating a heat transfer fluid from an equipment room and into hEat-transfer relationship with a plurality of energy absorbing units, means for returning the circulated fluid to the equipment room, means effective to cause heat transfer with the returned fluid to control the temperature thereof, means for delivering the heat transfer fluid from the heat transfer means to the circulating means, means for delivering make-up fluid to the circulating system, and means operatively connecting a plurality of sprinkler heads to the circulating system, a control comprising, in combination, normally open valve means effective in a closed position but ineffective in an open position to prevent the circulation of the heat transfer fluid into heat-transfer relationship with the energy absorbing units, said valve means being ineffective in both positions to prevent flow of the heattransfer fluid to the sprinkler heads, means effective, in response to a change in a sensed condition, which change indicates a flow of heat transfer fluid from the circulating system, to cause a signal, and means operatively connected to said sensor means and effective, in response to a signal from said sensor means, to close said normally open valve means.
Claim 2
Dependent Claim 200 words
In a circulating system comprising means for circulating a heat transfer fluid from an equipment room and into hEat-transfer relationship with a plurality of energy absorbing units, means for returning the circulated fluid to the equipment room, means effective to cause heat transfer with the returned fluid to control the temperature thereof, means for delivering the heat transfer fluid from the heat transfer means to the circulating means, means for delivering make-up fluid to the circulating system, and means operatively connecting a plurality of sprinkler heads to the circulating system, a control comprising, in combination, normally open valve means effective in a closed position but ineffective in an open position to prevent the circulation of the heat transfer fluid into heat-transfer relationship with the energy absorbing units, said valve means being ineffective in both positions to prevent flow of the heattransfer fluid to the sprinkler heads, means effective, in response to a change in a sensed condition, which change indicates a flow of heat transfer fluid from the circulating system, to cause a signal, and means operatively connected to said sensor means and effective, in response to a signal from said sensor means, to close said normally open valve means.

References Cited (Backward Citations)

US1087136A Cited
US1229071A Cited
US2017841A Cited
US3612167A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-11-10 1979-05-12 1979-11-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-11-10 1983-05-12 1983-11-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-11-10 1987-05-12 1987-11-11 $7700.00 Window Closed / Lapsed

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