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US3881901A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid cooling apparatus

Assignee: HEINE BROS SALES Pty Ltd
•
Filing: 1973-11-16
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Granted: 1975-05-06
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Expires: 1993-11-16
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Abstract

Abstract Liquid cooling apparatus including a liquid container, a refrigeration unit operable to maintain the temperature within that container between upper and lower levels, and a heat transfer element projecting into the container to draw heat from the container during operation of the refrigeration unit. A sleeve surrounds the heat transfer element and a liquid is contained within a space defined between the heat transfer element and the sleeve so as to form a jacket about the heat transfer element. The jacket liquid is selected so that it will freeze at or about the aforementioned lower temperature level and thereby provide an insulation against heat transfer, but will remain in a liquid state at temperatures above that lower level and below the aforementioned upper level so that it will act as a heat conductor in transferring heat from the liquid container to the heat transfer element.

Inventors

  • 👤 Patrick Robert Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 23:33
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 123 words
LIQUID COLLING APPARATUS INCLUDING A LIQUID CONTAINER HAVING A PLURALITY OF WALLS; A SLEEVE SECURED TO ONE OF SAID WALLS AND PROJECTING INTO SAID CONTAINER TO DEFINE A CAVITY WITHIN SAID CONTAINER; A HEAT TRANSFER ELEMENT LOCATED IN SAID CAVITY AND BEING OPERABLE DURING A COOLING PHASE OF SAID APPARATUS TO DRAW HEAT FROM SAID LIQUID CONTAINER; SAID SLEEVE AND SAID HEAT TRANSFER ELEMENT BEING RELATIVELY DIMENSIONED SO THAT A SPACE IS DEFINED BETWEEN THEIR ADJACENT SURFACES; AND A LIQUID CONTAINED WITHIN SAID SPACE TO FORM A JACKET ABOUT SAID HEAT TRANSFER ELEMENT; SAID JACKET LIQUID BEING SUCH AS TO FORN A HEAT CONDUCTION PATH BETWEEN SAID SLEEVE AND SAID HEAT TRANSFER ELEMENT DURING AT LEAST PART OF SAID COOLING PHASE, AND SAID
Claim 2
Dependent Claim 123 words
LIQUID COLLING APPARATUS INCLUDING A LIQUID CONTAINER HAVING A PLURALITY OF WALLS; A SLEEVE SECURED TO ONE OF SAID WALLS AND PROJECTING INTO SAID CONTAINER TO DEFINE A CAVITY WITHIN SAID CONTAINER; A HEAT TRANSFER ELEMENT LOCATED IN SAID CAVITY AND BEING OPERABLE DURING A COOLING PHASE OF SAID APPARATUS TO DRAW HEAT FROM SAID LIQUID CONTAINER; SAID SLEEVE AND SAID HEAT TRANSFER ELEMENT BEING RELATIVELY DIMENSIONED SO THAT A SPACE IS DEFINED BETWEEN THEIR ADJACENT SURFACES; AND A LIQUID CONTAINED WITHIN SAID SPACE TO FORM A JACKET ABOUT SAID HEAT TRANSFER ELEMENT; SAID JACKET LIQUID BEING SUCH AS TO FORN A HEAT CONDUCTION PATH BETWEEN SAID SLEEVE AND SAID HEAT TRANSFER ELEMENT DURING AT LEAST PART OF SAID COOLING PHASE, AND SAID
Claim 3
Dependent Claim 243 words
Liquid cooling apparatus including a liquid container having a plurality of walls; a sleeve secured to one of said walls and projecting into said container to define a cavity within said container; a heat transfer element located in said cavity and being operable during a cooling phase of said apparatus to draw heat from said liquid container; said sleeve and said heat transfer element being relatively dimensioned so that a space is defined between their adjacent surfaces; and a liquid contained within said space to form a jacket about said heat transfer element; said jacket liquid being such as to form a heat conduction path between said sleeve and said heat transfer element during at least part of said cooling phase, said heat transfer element including a cylindrical shell and a refrigeration coil located within that shell, said coil forming part of refrigeration means which is operated during each of several cooling phases to lower the temperature of said coil below ambient temperature, said sleeve being cylindrical and having an open end secured about the opening formed in said lower wall of said container, sealing means between said sleeve and said shell adjacent said opening so as to close one end of said space, and an end wall of said sleeve extends across at least part of a top surface of said shell and is spaced therefrom so that portion of said space is defined between said end wall and said top surface.
Claim 4
Dependent Claim 243 words
Liquid cooling apparatus including a liquid container having a plurality of walls; a sleeve secured to one of said walls and projecting into said container to define a cavity within said container; a heat transfer element located in said cavity and being operable during a cooling phase of said apparatus to draw heat from said liquid container; said sleeve and said heat transfer element being relatively dimensioned so that a space is defined between their adjacent surfaces; and a liquid contained within said space to form a jacket about said heat transfer element; said jacket liquid being such as to form a heat conduction path between said sleeve and said heat transfer element during at least part of said cooling phase, said heat transfer element including a cylindrical shell and a refrigeration coil located within that shell, said coil forming part of refrigeration means which is operated during each of several cooling phases to lower the temperature of said coil below ambient temperature, said sleeve being cylindrical and having an open end secured about the opening formed in said lower wall of said container, sealing means between said sleeve and said shell adjacent said opening so as to close one end of said space, and an end wall of said sleeve extends across at least part of a top surface of said shell and is spaced therefrom so that portion of said space is defined between said end wall and said top surface.
Claim 5
Dependent Claim 63 words
Apparatus according to claim 2 wherein an agitator is located within said liquid container and is mounted on a rotatable shaft extending through both said top surface of the shell and said sleeve end wall, and a tubular member extends upwardly from said end wall to contain at least part of the portion of said shaft projecting above said heat transfer element shell.
Claim 6
Dependent Claim 18 words
Apparatus according to claim 3, wherein said jacket liquid space extends between said tubular member and said shaft.
Claim 7
Dependent Claim 28 words
Apparatus accordinG to claim 4 wherein a removable closure member cooperates with said tubular member to at least partially close the upper end of said jacket liquid space.

References Cited (Backward Citations)

US2734357A Cited
US1846190A Cited
US1960975A Cited
US2513610A Cited
US2494719A Cited
US3255609A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-05 1978-11-04 1979-05-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-05 1982-11-04 1983-05-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-05 1986-11-04 1987-05-06 $7700.00 Window Closed / Lapsed

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