US3755039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of slitting and jacketing cylindrical bodies
Assignee: Johns Manville Corp
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Filing: 1971-04-26
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Granted: 1973-08-28
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Expires: 1991-04-26
Abstract
Abstract Tubes are contacted by belts on the upper portion of their outer surface to advance the tubes along a path paralleling their longitudinal axes with the lower well being slit and a guide subsequently being engaged to position the tube with its slot paralleling an edge of a sheet of jacketing material advanced toward the tube and positioned adjacent thereto whereby belts acting normal to the path of the tubes contact the upper portion of their outer surface to roll the tubes about their longitudinal axes to engage the sheet jacketing material wrapping it about the tube being rolled thereover.
Inventors
- 👤 R Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:08
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/022; F16L59/023; B; B26; B26D; B26D3/00; B26D3/001; B26D3/006; B29; B29C; B29C63/00; B29C63/02; B29C63/04; B29C63/12; B29C63/14; B31; B31C; B31C1/00; B65; B65H; B65H81/00; B65H81/06; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1052; Y10T156/1062; Y10T156/1067; Y10T156/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
170 words
A method of jacketing cylindrical bodies comprising the steps of: advancing a tubular object from a supply source to a slitting station; advancing the tubular object in a direction parallel to its longitudinal axis through the slitting station while maintaining the tubular object in a fixed circumferential orientation; slitting a wall of the tubular object parallel to the longitudinal axis thereof while advancing the tubular object through the slitting station to form a longitudinal slot in the tubular object; advancing the tubular object to a jacket application station while maintaining the tubular object in the fixed circumferential orientation by inserting guide means in the longitudinal slot; advancing an adhesively coated jacketing material to the jacketing station; bringing a longitudinal edge portion of the jacketing material into contact with the tubular object adjacent the longitudinal slot and in paRallel alignment with the longitudinal slot; and rotating the tubular object about its longitudinal axis after removing the guide means from the longitudinal slot to wrap the jacketing material about the tubular object.
Claim 2
Independent Claim
170 words
A method of jacketing cylindrical bodies comprising the steps of: advancing a tubular object from a supply source to a slitting station; advancing the tubular object in a direction parallel to its longitudinal axis through the slitting station while maintaining the tubular object in a fixed circumferential orientation; slitting a wall of the tubular object parallel to the longitudinal axis thereof while advancing the tubular object through the slitting station to form a longitudinal slot in the tubular object; advancing the tubular object to a jacket application station while maintaining the tubular object in the fixed circumferential orientation by inserting guide means in the longitudinal slot; advancing an adhesively coated jacketing material to the jacketing station; bringing a longitudinal edge portion of the jacketing material into contact with the tubular object adjacent the longitudinal slot and in paRallel alignment with the longitudinal slot; and rotating the tubular object about its longitudinal axis after removing the guide means from the longitudinal slot to wrap the jacketing material about the tubular object.
Claim 3
Dependent Claim
37 words
A method according to claim 1 wherein the adhesive on the jacketing material is initially dormant and including applying an activator fluid to the adhesive prior to bringing the jacketing material into contact with the tubular object.
Claim 4
Dependent Claim
45 words
A method according to claim 2 including maintaining a second longitudinal marginal edge portion of the jacketing material, that is opposite the edge portion adjacent the longitudinal slot, free of the activator fluid to keep the adhesive on the second longitudinal marginal edge portion dormant.
Claim 5
Dependent Claim
42 words
A method according to claim 3 including maintaining the sheet of jacketing material in a dwell position after the application of the activator fluid and prior to contacting the tubular body with the jacketing material to enable the adhesive to become tacky.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |