Patent US3912005A successfully refreshed from Google Patents.
US3912005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner assembly
Assignee: Kelvinator Inc
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Filing: 1973-11-23
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Granted: 1975-10-14
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Expires: 1993-11-23
Abstract
Abstract A method and apparatus for assembling tubing to a supporting and heat exchanging wall for heat transfer therebetween by which the tubing is prepositioned on the wall and held by a releasable holding force until an adhesive or cementitious binder material permanently secures the tubing to the wall with sufficient strength to retain the tubing in the desired position after removal of the holding force. In refrigeration apparatus, evaporator tubing may be assembled on the exterior walls of a boxlike liner by temporarily holding it in position with a magnetic field provided by a magnet carrying male fixture formed to fit the interior of the liner, coating the liner exterior and tubing with a binder, such as by dipping it in a molten thermoplastic and allowing the thermoplastic to set by cooling, and removing the male fixture.
Inventors
- 👤 Leslie N Griffiths
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:07
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/26; F; F25; F25B; F25B39/00; F25B39/02; F25D; F25D23/00; F25D23/06; F25B2339/00; F25B2339/02; F25B2339/023; F25D2400/00; F25D2400/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
164 words
A heat exchanger wall assembly in a refrigerator apparatus comprising a plurality of substantially flat walls being fabricated from sheet stock into a boxlike inner liner and each having a generally rectangular shape, a plurality of substantially planar parallel interconnected metal tube portions covering a plurality of said walls, said tube portions having a length substantially equal to the distance from one edge of an associated wall to an opposite wall edge, each of said tube portions being in heat conducting engagement and in direct contact with a side of its associated wall along substantially its full length, a non-metallic organic coating covering substantially all of the surface of each wall side not engaged by said tubing and at least a substantial portion of the outer surface of each tube portion not engaging said wall, said coating adhering to said wall side and providing the sole means for maintaining said tube portions in heat conducting engagement with said wall substantially along their full length.
Claim 2
Dependent Claim
164 words
A heat exchanger wall assembly in a refrigerator apparatus comprising a plurality of substantially flat walls being fabricated from sheet stock into a boxlike inner liner and each having a generally rectangular shape, a plurality of substantially planar parallel interconnected metal tube portions covering a plurality of said walls, said tube portions having a length substantially equal to the distance from one edge of an associated wall to an opposite wall edge, each of said tube portions being in heat conducting engagement and in direct contact with a side of its associated wall along substantially its full length, a non-metallic organic coating covering substantially all of the surface of each wall side not engaged by said tubing and at least a substantial portion of the outer surface of each tube portion not engaging said wall, said coating adhering to said wall side and providing the sole means for maintaining said tube portions in heat conducting engagement with said wall substantially along their full length.
Claim 3
Dependent Claim
37 words
A heat exchanger wall assembly for a refrigerator apparatus as set forth in claim 1, wherein said tubing is susceptible to destruction by corrosion, and said organic coating is bitumen adapted to protect said tubing from corrosion.
Claim 4
Dependent Claim
77 words
A heat exchanger wall assembly for a refrigerator apparatus as set forth in claim 2, wherein said heat exchanger wall assembly comprises a box structure having a rectangular open side, a rectangular side opposite said open side, and four interconnected sidewalls joininG said open side and said opposite side along their perimeters, said tubing extending around the exterior of said sidewalls, and said bitumen coating covering said opposite side and said side walls of the box structure.
Claim 5
Dependent Claim
125 words
A refrigeration liner assembly comprising a boxlike cabinet including a plurality of orthogonal walls formed of rigid sheet material, interconnected lengths of steel tubing having portions thereof forming planar refrigeration coil sections on the outside surfaces of a plurality of the liner walls, each coil section being in heat conducting engagement and in direct contact with its associated wall, a liquid applied coating of settable non-metallic organic material over both the outside surface of each wall and its associated refrigeration coil section, said non-metallic organic material coating having sufficient adhesion to said walls and sufficient mechanical strength whereby it provides the sole means to prevent movement of the refrigeration coils away from the walls and a resultant loss of heat conducting engagement with said walls.
Claim 6
Dependent Claim
125 words
A refrigeration liner assembly comprising a boxlike cabinet including a plurality of orthogonal walls formed of rigid sheet material, interconnected lengths of steel tubing having portions thereof forming planar refrigeration coil sections on the outside surfaces of a plurality of the liner walls, each coil section being in heat conducting engagement and in direct contact with its associated wall, a liquid applied coating of settable non-metallic organic material over both the outside surface of each wall and its associated refrigeration coil section, said non-metallic organic material coating having sufficient adhesion to said walls and sufficient mechanical strength whereby it provides the sole means to prevent movement of the refrigeration coils away from the walls and a resultant loss of heat conducting engagement with said walls.
Claim 7
Dependent Claim
22 words
A refrigeration liner as set forth in claim 4, wherein said coating is applied over substantially all of said planar coil sections.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |