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US3754596A Expired / Lapsed US ⏱️ 0.0 years remaining

Cooling system for multiple electrical equipments

Assignee: United States Department of the Navy
•
Filing: 1971-12-03
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Granted: 1973-08-28
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Expires: 1991-12-03
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Abstract

Abstract A plurality of electrical equipments mounted in separate enclosures is cooled by multiple heat exchanger units connected to a common path directing coolant from the heat exchanger units to each of the enclosures in which the electrical equipments are mounted. A separate path connected to each of the enclosures housing the electrical equipments provides a common return for directing the coolant from the electrical equipments to each of the heat exchangers after it has performed its cooling function. The multiple heat exchanger units thus connected in common paths for both directing the coolant to the electrical equipments and returning it from the electrical equipments provides all electrical equipments with sufficient coolant to maintain minimum operation even though one of the heat exchanger units malfunctions or is inoperative. Continuity of the functions performed by the plurality of electrical equipments connected in the cooling system is thus insured.

Inventors

  • 👤 C Ward

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 18:38
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/56; H05; H05K; H05K7/00; H05K7/20; H05K7/20536; H05K7/206; H05K7/20627; H05K7/20645

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 137 words
A system for cooling a plurality of electrical equipments comprising: separate, adjacently positioned enclosures, each adapted to support a number of said electrical equipments one above another in vertically disposed arrangement; a plurality of heat exchanger units; a first L-shaped duct connected in common to receive coolant from each of said heat exchanger units and forming a common path connected to the lower portion of each of said enclosures for distribution of said coolant to the electrical equipments within each said enclosure by convectional flow; and a second L-shaped duct connected to the top portion of each of the enclosures housing said electrical equipments and to each of said heat exchangers, forming a common path for the collection of said coolant after its convectional flow past said electrical equipments for return to each of said heat exchangers.
Claim 2
Independent Claim 137 words
A system for cooling a plurality of electrical equipments comprising: separate, adjacently positioned enclosures, each adapted to support a number of said electrical equipments one above another in vertically disposed arrangement; a plurality of heat exchanger units; a first L-shaped duct connected in common to receive coolant from each of said heat exchanger units and forming a common path connected to the lower portion of each of said enclosures for distribution of said coolant to the electrical equipments within each said enclosure by convectional flow; and a second L-shaped duct connected to the top portion of each of the enclosures housing said electrical equipments and to each of said heat exchangers, forming a common path for the collection of said coolant after its convectional flow past said electrical equipments for return to each of said heat exchangers.
Claim 3
Dependent Claim 47 words
A system as claimed in claim 1 wherein the aggregate cooling capacity of said heat exchanger units is sufficient to insure the continuity of a predetermined level of operative functionality of all said electrical equipments upon the failure of a determinable number of said heat exchanger units.
Claim 4
Dependent Claim 17 words
A system as claimed in claim 1 wherein said heat exchangers are contained within a common enclosure.
Claim 5
Dependent Claim 12 words
A system as claimed in claim 1 wherein said coolant is air.
Claim 6
Dependent Claim 12 words
A system as claimed in claim 1 wherein said coolant is liquid.
Claim 7
Dependent Claim 12 words
A system as claimed in claim 5 wherein said coolant is water.

References Cited (Backward Citations)

US3124720A Cited
US2168157A Cited
US2787768A Cited
US3334684A Cited
US3396780A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-27 1977-02-26 1977-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-27 1981-02-26 1981-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-27 1985-02-26 1985-08-28 $7700.00 Window Closed / Lapsed

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