Patent US4272300A successfully refreshed from Google Patents.
US4272300A
Expired / Lapsed
US
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Method for cleaning grease-filled cable stub
Assignee: Reliable Electric Co
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Filing: 1980-02-06
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Granted: 1981-06-09
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Expires: 2000-02-06
Abstract
Abstract An unsheathed grease-filled cable stub has the grease removed from around the insulated wires by subjecting the cable stub to radiant heat over the length of the stub and over a major portion of its circumference while the stub is supported on a flexible open mesh of material that overlies a trough. The heated grease melts and flows downwardly for collection into the trough, the grease also flowing through the supporting mesh. The heating temperature of the cable stub is kept low enough to prevent damage to the insulation of the wires.
Inventors
- 👤 Frederick W. Burtelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:41
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/14; B; B08; B08B; B08B7/00; B08B7/0064; B08B7/0071; H01; H01B; H01B13/00; H01B13/30; H01B15/00; H01B15/003; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/82
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
141 words
A method of cleaning grease from around the insulated wires of an electrical cable stub wherein the cable has a sheath that has been removed at the stub to expose the grease packed insulated wires, said method comprising positioning said stub over an open top trough so that the grease is exposed to the inside of the trough, heating the stub to a temperature sufficient to melt the grease and allow it to run off of the stub into the trough to be collected therein, maintaining the temperature to which the stub is exposed at a level that avoids damage to the insulation of the wires, and during said heating supporting said stub on a structure of sufficiently low heat absorbtivity so as to prevent the formation of hot spots on the cable which might damage the insulation of the wires.
Claim 2
Independent Claim
141 words
A method of cleaning grease from around the insulated wires of an electrical cable stub wherein the cable has a sheath that has been removed at the stub to expose the grease packed insulated wires, said method comprising positioning said stub over an open top trough so that the grease is exposed to the inside of the trough, heating the stub to a temperature sufficient to melt the grease and allow it to run off of the stub into the trough to be collected therein, maintaining the temperature to which the stub is exposed at a level that avoids damage to the insulation of the wires, and during said heating supporting said stub on a structure of sufficiently low heat absorbtivity so as to prevent the formation of hot spots on the cable which might damage the insulation of the wires.
Claim 3
Dependent Claim
18 words
A method according to claim 1 further including supporting said stub on said structure at spaced apart regions.
Claim 4
Dependent Claim
29 words
A method according to claim 1 or claim 2 in which the heating is carried out over the length and a major portion of the circumference of the stub.
Claim 5
Independent Claim
181 words
A method of cleaning grease from around the insulated wires of an electrical cable stub wherein the cable has a sheath that has been removed at the stub to expose the grease packed insulated wires, said method comprising positioning said stub over an open top trough so that the grease is exposed to the inside of the trough through said open top, heating the stub by exposure to radiant heat over a major portion of its circumference and length to a temperature sufficient to melt the grease and allow it to run off of the stub and into the trough to be collected therein, maintaining the temperature to which the stub is exposed at a level that avoids damage to the insulation of the wires, and supporting said cable stub on a series of spaced apart pieces of flexible open mesh of material during the positioning of said cable stub over said trough, said open mesh material having sufficiently low heat absorption characteristics to prevent the formation of hot spots on the cable which might damage the insulation of the wires.
Claim 6
Independent Claim
181 words
A method of cleaning grease from around the insulated wires of an electrical cable stub wherein the cable has a sheath that has been removed at the stub to expose the grease packed insulated wires, said method comprising positioning said stub over an open top trough so that the grease is exposed to the inside of the trough through said open top, heating the stub by exposure to radiant heat over a major portion of its circumference and length to a temperature sufficient to melt the grease and allow it to run off of the stub and into the trough to be collected therein, maintaining the temperature to which the stub is exposed at a level that avoids damage to the insulation of the wires, and supporting said cable stub on a series of spaced apart pieces of flexible open mesh of material during the positioning of said cable stub over said trough, said open mesh material having sufficiently low heat absorption characteristics to prevent the formation of hot spots on the cable which might damage the insulation of the wires.
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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) | 1984-06-08 | 1984-12-08 | 1985-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-08 | 1988-12-08 | 1989-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-08 | 1992-12-08 | 1993-06-09 | $7700.00 | Window Closed / Lapsed |