Patent US3860269A successfully refreshed from Google Patents.
US3860269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial tube coupler assembly
Assignee: Individual
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Filing: 1973-08-22
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Granted: 1975-01-14
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Expires: 1993-08-22
Abstract
Abstract The improved coaxial tube coupler assembly of the invention comprises two pairs of coaxial tubes held in spaced relation from one another within a tube coupler. The open ends of the outer tubes of the pairs of tubes terminate within the coupler in communication with an internal passageway so that fluid can be circulated between the two outer tubes. The two inner tubes extend beyond the coupler and are interconnected for fluid circulation therebetween. The interconnection is effected by a separate tube and a pair of elbows. Removable plugs seal the coupler body from the inner tubes extending therefrom. The assembly is light weight, inexpensive and highly effective.
Inventors
- 👤 Lawrence R Horton
- 👤 Charles A Jackson
- 👤 William P Holcomb
- 👤 Catherine Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:33
CPC Classifications
F; F16; F16L; F16L39/00; F16L39/005; F28; F28F; F28F9/00; F28F9/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
359 words
An improved coaxial tube coupler assembly comprising, in combination: a. a first and second spaced pair of coaxially aligned tubes, one end of the inner tube of each said pair extending beyond the adjacent end of the outer tube of each said pair, said adjacent end being open; b. means interconnecting said one ends of said inner tubes for fluid transfer therebetween; c. a coupler sealingly disposed around said open ends of said outer tubes and maintaining said outer tubes in said spaced relation, said coupler defining an internal passageway between said open ends for fluid transfer therebetween; d. wherein said inner tubes extend through said coupler and are supported in relation thereto and wherein said interconnecting means is disposed outside of said coupler; e. wherein support means are releasably secured to said coupler and wherein said inner tubes extend therethrough and are supported thereby; f. wherein said coupler defines a pair of spaced aligned passageways extending therethrough; within which aligned passageways said open ends of said outer tubes are disposed and supported, said internal passageway extending into communication with said aligned passageways, said open ends of said outer tubes terminating in said aligned passageways at about said internal passageway; g. wherein plug means are releasably disposed in said aligned passageways to seal the same and define with said outer tubes a portion of said internal passageway; h. wherein said plug means comprise support means which define apertures therethrough with which portions of said inner tubes are sealingly disposed and supported; i. wherein said inner tubes are heat exchange tubes, wherein said interconnecting means are disposed outside of said coupler, and wherein said tube pairs are parallel with each other; j. wherein said inner tubes are heat exchange tubes, wherein said outer tubes are thermally insulative tubes and wherein said coupler and plug means are also thermally insulative; k. wherein said inner tubes comprise metal and wherein said outer tubes, coupler and plug means comprise plastic; wherein said plug comprises a threaded plastic reducing nipple, wherein said metal comprises copper and wherein said interconnecting means comprises a length of tube secured to said inner tube ends via tube elbows.
Claim 2
Dependent Claim
359 words
An improved coaxial tube coupler assembly comprising, in combination: a. a first and second spaced pair of coaxially aligned tubes, one end of the inner tube of each said pair extending beyond the adjacent end of the outer tube of each said pair, said adjacent end being open; b. means interconnecting said one ends of said inner tubes for fluid transfer therebetween; c. a coupler sealingly disposed around said open ends of said outer tubes and maintaining said outer tubes in said spaced relation, said coupler defining an internal passageway between said open ends for fluid transfer therebetween; d. wherein said inner tubes extend through said coupler and are supported in relation thereto and wherein said interconnecting means is disposed outside of said coupler; e. wherein support means are releasably secured to said coupler and wherein said inner tubes extend therethrough and are supported thereby; f. wherein said coupler defines a pair of spaced aligned passageways extending therethrough; within which aligned passageways said open ends of said outer tubes are disposed and supported, said internal passageway extending into communication with said aligned passageways, said open ends of said outer tubes terminating in said aligned passageways at about said internal passageway; g. wherein plug means are releasably disposed in said aligned passageways to seal the same and define with said outer tubes a portion of said internal passageway; h. wherein said plug means comprise support means which define apertures therethrough with which portions of said inner tubes are sealingly disposed and supported; i. wherein said inner tubes are heat exchange tubes, wherein said interconnecting means are disposed outside of said coupler, and wherein said tube pairs are parallel with each other; j. wherein said inner tubes are heat exchange tubes, wherein said outer tubes are thermally insulative tubes and wherein said coupler and plug means are also thermally insulative; k. wherein said inner tubes comprise metal and wherein said outer tubes, coupler and plug means comprise plastic; wherein said plug comprises a threaded plastic reducing nipple, wherein said metal comprises copper and wherein said interconnecting means comprises a length of tube secured to said inner tube ends via tube elbows.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |