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US4947931A Expired / Lapsed US ⏱️ 0.0 years remaining

Plastic vehicular radiator-condenser with metal cooling inserts

Assignee: Individual
•
Filing: 1989-12-28
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Granted: 1990-08-14
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Expires: 2009-12-28
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Abstract

Abstract An economical, compact, universal model radiator-condenser for motor vehicles molded in Nylon plastic and designed not to exceed the overall outside dimensions of the heat exchange system it is to replace. It has two inside divider walls (11a) and (11b) and a number of connecting spaced chambers (12) that extend vertically from the top tank (14) to bottom tank (16). Each chamber or conduit contains a multitude of slotted openings (32) on the front and back. An angular aluminum louvered (42) cooling strip (34) with deep cavity formed baffles (36); made from coil stock on a high speed die formed rolling machine; is secured by bonding or other means to the front and back of each chamber (12) with the baffles (36) projecting thru the slots (32) and into the chamber (12). As fluid passes over these baffles heat is taken out of the liquid and transfered thru these baffles (36) to the louvered (42) surface of the metal strip (34) where it is cooled off by the action of the internal engines fan and movement of the vehicle. There is also an independent chamber (13) for cooling the oil on vehicles equipped with automatic transmissions. On the condenser side of the unit a sharp reduction in the use of Freon gas is anticipated due to the increased heat transfer surface and turbulating effect of the interior cooling baffles.

Inventors

  • 👤 Richard L. Vitacco

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 09:21
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/06; F28F21/065; F25; F25B; F25B39/00; F25B39/04; F28B; F28B1/00; F28B1/06; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/0408; F28D1/0426; F28D1/0443; F28F13/00; F28F13/06; F28F9/00; F28F9/02; F28F9/0202; F28F9/0204; F28F9/0209; F28F9/0212; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 153 words
A heat exchanger comprising an upper header, a lower header, and a plurality of tubular chambers extending and defining flow paths therebetween, said tubular chambers being spaced from each other to further define open spaces therebetween; said headers and tubular chambers forming a substantially planar member having a front face and a rear face on opposed sides thereof; each said tubular chamber having a front surface and a rear surface lying substantially in said front and rear faces of said heat exchanger, respectively, and having at least one cooling strip attached to its front or rear surface by means of baffles penetrating said surface and projecting into said tubular chamber; said cooling strips extending at least partially around said tubular chambers and into the space between adjacent tubular chambers, said portion of said strips extending into said space between adjacent tubular members having formed thereon louvers for enhancing heat transfer from said strip.
Claim 2
Dependent Claim 153 words
A heat exchanger comprising an upper header, a lower header, and a plurality of tubular chambers extending and defining flow paths therebetween, said tubular chambers being spaced from each other to further define open spaces therebetween; said headers and tubular chambers forming a substantially planar member having a front face and a rear face on opposed sides thereof; each said tubular chamber having a front surface and a rear surface lying substantially in said front and rear faces of said heat exchanger, respectively, and having at least one cooling strip attached to its front or rear surface by means of baffles penetrating said surface and projecting into said tubular chamber; said cooling strips extending at least partially around said tubular chambers and into the space between adjacent tubular chambers, said portion of said strips extending into said space between adjacent tubular members having formed thereon louvers for enhancing heat transfer from said strip.

References Cited (Backward Citations)

US801397A Cited
US1356676A Cited
US1468686A Cited
US1726360A Cited
US2505790A Cited
US3265126A Cited
US4529034A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-08-13 1994-02-12 1994-08-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-08-13 1998-02-12 1998-08-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-08-13 2002-02-12 2002-08-14 $7700.00 Window Closed / Lapsed

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