Patent US3477612A successfully refreshed from Google Patents.
Patent US4255137A successfully refreshed from Google Patents.
US4255137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable end heater for plastic hose
Assignee: Dana Inc
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Filing: 1979-05-29
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Granted: 1981-03-10
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Expires: 1999-05-29
Abstract
Abstract A heating device, particularly useful for heating the end portions of hollow elongated objects such as thermoplastic hose or tubing, comprises an enclosure for substantially surrounding the end portion of the object, means for substantially immobilizing the end portion within the enclosure and means for directing a stream of heated gas around the inside and outside of the object along the length of the end portion. In a preferred embodiment, the enclosure is an insulated metal circular cylinder having at one end apertures for receiving thermoplastic hose and controlling gas flow. At the other end, the enclosure has an apertured conical member for insertion into the hose to immobilize it in axial alignment with the cylinder. A gas flow conduit for introducing a stream of heated air substantially tangentially onto the inner and outer surfaces of the hose cooperates with the walls of the hose and the enclosure to whirl hot air helically around the inner and outer surfaces of the hose along the length of the end portion.
Inventors
- 👤 Nathan E. Guyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:56
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/023; B29B13/024; B29B13/025; B29C; B29C35/00; B29C35/02; B29C35/04; B29C35/045; B29K; B29K2027/00; B29K2027/06; B29L; B29L2023/00; B29L2023/22
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
A portable device for heating an end portion of thermoplastic comprising: an insulated metal cylindrical enclosure having an apertured end for receiving such hose; at the other end of said cylinder, support means for immobilizing such hose end portion within said enclosure; and; gas direction means for directing a stream of heated gas helically around the inner and outer surfaces of such hose along the length of the end portion.
Claim 2
Dependent Claim
70 words
A portable device for heating an end portion of thermoplastic comprising: an insulated metal cylindrical enclosure having an apertured end for receiving such hose; at the other end of said cylinder, support means for immobilizing such hose end portion within said enclosure; and; gas direction means for directing a stream of heated gas helically around the inner and outer surfaces of such hose along the length of the end portion.
Claim 3
Dependent Claim
22 words
A heating device according to claim 1 wherein said support means comprises at least one protruding member for fitting into said hose.
Claim 4
Dependent Claim
81 words
A heating device according to claim 2 wherein: said cylinder comprises a circular cylinder having a central axis; said apertured end comprises means for venting gas from said cylinder; said protruding member and said apertured end are disposed and oriented for immobilizing such hose end portion along said central axis of said cylindrical enclosure; and said gas direction means comprises gas conduit means for directing a stream of heated gas substantially circumferentially onto the inner and outer surfaces of such hose.
Claim 5
Dependent Claim
103 words
A portable device for heating an end portion of thermoplastic hose comprising: an insulated metal cylindrical enclosure having an apertured end for receiving such hose; at the other end of said cylinder, support means for immobilizing such hose end portion within said enclosure comprising a protruding member convex toward the interior of said enclosure for centering said hose within said cylindrical enclosure and adjusting the length of the end portion included within said enclosure when the hose is positioned on said member; and gas direction means for directing a stream of heated gas circumferentially onto the interior and exterior surfaces of such hose.
Claim 6
Dependent Claim
103 words
A portable device for heating an end portion of thermoplastic hose comprising: an insulated metal cylindrical enclosure having an apertured end for receiving such hose; at the other end of said cylinder, support means for immobilizing such hose end portion within said enclosure comprising a protruding member convex toward the interior of said enclosure for centering said hose within said cylindrical enclosure and adjusting the length of the end portion included within said enclosure when the hose is positioned on said member; and gas direction means for directing a stream of heated gas circumferentially onto the interior and exterior surfaces of such hose.
Claim 7
Dependent Claim
58 words
A device according to claim 4 for heating an end portion of hose comprising: an insulated metal cylindrical enclosure having an apertured end for receiving such hose; at the other end of said cylinder, support means for immobilizing such hose end portion within said enclosure comprising a plurality of protruding straps converging toward the interior of said enclosure.
Claim 8
Dependent Claim
20 words
A heating device according to claim 1 further comprising a source of hot air coupled to said gas direction means.
Claim 9
Dependent Claim
97 words
A portable device for heating an end portion of an elongated hollow thermoplastic hose comprising: enclosure means for substantially surrounding at least such end portion of such hose; support means comprising a protruding member convex toward the interior of said enclosure for fitting into said hose and for (a) centering said hose within said enclosure, (b) adjusting the length of the end portion included within said enclosure, and (c) substantially immobilizing such end portion within said enclosure; and fluid direction means for directing a stream of heated fluid around the inner and outer surfaces of such hose.
Claim 10
Dependent Claim
97 words
A portable device for heating an end portion of an elongated hollow thermoplastic hose comprising: enclosure means for substantially surrounding at least such end portion of such hose; support means comprising a protruding member convex toward the interior of said enclosure for fitting into said hose and for (a) centering said hose within said enclosure, (b) adjusting the length of the end portion included within said enclosure, and (c) substantially immobilizing such end portion within said enclosure; and fluid direction means for directing a stream of heated fluid around the inner and outer surfaces of such hose.
Claim 11
Dependent Claim
24 words
A device according to claim 7 wherein said enclosure means is an insulated metal cylinder having an apertured end for receiving such hollow object.
Claim 12
Dependent Claim
22 words
A heating device according to claim 7 wherein said support means comprises a generally conical member for fitting into such hollow object.
Claim 13
Dependent Claim
38 words
A heating device according to claim 7 wherein said fluid direction means comprises means for directing a stream of heated gas helically around the inner and outer surfaces of such object along the length of such end portion.
References Cited (Backward Citations)
DE294878C
Cited
US2515300A
Cited
US1407412A
Cited
US2100639A
Cited
US3043017A
Cited
US3082760A
Cited
US4014640A
Cited
US4097573A
Cited
US4088439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |