US3779446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding apparatus
Assignee: Individual
•
Filing: 1971-10-13
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Granted: 1973-12-18
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Expires: 1991-10-13
Abstract
Abstract A welding apparatus and method are provided which are particularly applicable to the welding of aligned and abutted sections of pipe and tubing. In one form, welding is effected by a spinning tool which heats and deforms portions of tube work members such as the flanged or abutted ends of tubing in a manner to weld same together. The apparatus and method are also applicable to the welding of shapes other than tubing. In another form, the aligned ends of two tubes are simultaneously or sequentially automatically flared prior to the welding operation which involves abutting the flared end portions and welding same together by spinning or cold pressure welding apparatus.
Inventors
- 👤 J Lemelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:06
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B23; B23K; B23K20/00; B23K20/12; B23K20/122; B23K20/24; B23K5/00; B23K5/02; B23K5/08; B29C57/00; B29C57/02; B29C57/04; B29C65/00; B29C65/02; B29C65/06; B29C65/0681; B29C66/12; B29C66/122; B29C66/1222; B29C66/1226; B29C66/13; B29C66/131; B29C66/1312; B29C66/137; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/63; B29C66/65; B29C66/652; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81431; B29C66/83; B29C66/832; B29C66/8322; B29C66/836; B29C66/8362; B23K2101/00; B23K2101/04; B23K2101/06; B29C65/08; B29C66/82; B29C66/824; B29C66/8242
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
134 words
Apparatus for joining tubing together comprising: means for engaging and holding a first tube of deformable material near an end thereof, means for engaging and holding a second tube of deformable material near an end thereof with an open end of said second tube aligned with and spaced apart from an open end of said first tube, a deforming tool having a rotary deforming head, means for locating said deforming tool between the open ends of said first and second tubes and in alignment with said first tube and means for effecting powered rotation between said head and first tube to cause said rotary head to engage and to outwardly spin deform the end of said first tube, means operative thereafter for abutting and welding the ends of said first and second tubes together.
Claim 2
Dependent Claim
134 words
Apparatus for joining tubing together comprising: means for engaging and holding a first tube of deformable material near an end thereof, means for engaging and holding a second tube of deformable material near an end thereof with an open end of said second tube aligned with and spaced apart from an open end of said first tube, a deforming tool having a rotary deforming head, means for locating said deforming tool between the open ends of said first and second tubes and in alignment with said first tube and means for effecting powered rotation between said head and first tube to cause said rotary head to engage and to outwardly spin deform the end of said first tube, means operative thereafter for abutting and welding the ends of said first and second tubes together.
Claim 3
Dependent Claim
27 words
An apparatus in accordance with claim 1 including means for operating said deforming tool to deform the ends of both said tubes prior to the welding operation.
Claim 4
Dependent Claim
63 words
An apparatus in accordance with claim 1 including means for abutting said head as it is rotated to spin deform the end of the other of said tubes, means for relatively moving said tool and said tubes to remove the tool from the vicinity of the ends of said tubes prior to the abuttment of the tube ends together and the welding operation.
Claim 5
Dependent Claim
69 words
An apparatus in accordance with claim 1 wherein said deforming tool has opposed portions for simultaneously engaging the ends of both said tubes, means for simultaneously rotating said opposed portions of said tool simultaneously against respective ends of said tubes to outwardly spin deform said tube ends, means for relatively removing said tool from between said tube ends prior to abutting and welding the ends of said tubes together.
Claim 6
Dependent Claim
137 words
Apparatus for joining tubing together comprising: means for engaging and holding a first tube of deformable material near an open end thereof, means for engaging and holding a second tube of deformable material near an open end thereof and in alignment with and spaced apart from said open end of said first tube, a deforming tool having opposed portions shaped to engage and deform the respective aligned open ends of said first and second tubes, means for simultaneously rotating said opposed portions of said tool while simultaneously engaging said opposed portions against respective ends of said tubes to outwardly spin deform the walls of the ends of both said tubes, means for relatively moving said tool from between said tubes after spin deforming same and means for abutting and welding the deformed ends of said tubes together.
Claim 7
Dependent Claim
137 words
Apparatus for joining tubing together comprising: means for engaging and holding a first tube of deformable material near an open end thereof, means for engaging and holding a second tube of deformable material near an open end thereof and in alignment with and spaced apart from said open end of said first tube, a deforming tool having opposed portions shaped to engage and deform the respective aligned open ends of said first and second tubes, means for simultaneously rotating said opposed portions of said tool while simultaneously engaging said opposed portions against respective ends of said tubes to outwardly spin deform the walls of the ends of both said tubes, means for relatively moving said tool from between said tubes after spin deforming same and means for abutting and welding the deformed ends of said tubes together.
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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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |