Patent US3182171A successfully refreshed from Google Patents.
US3182171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube welding machine
Assignee: BRODERNA HEDLUND AB
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Filing: 1962-11-19
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Granted: 1965-05-04
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Persson Knut Axel Waldemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:44
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B21C37/0822; B23; B23K; B23K9/00; B23K9/02; B23K9/025; B23K9/0253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A MACHINE FOR UNITING THE LONGITUDINALLY EDGES OF A TUBE SHANK OF SHEET METAL BENT TO SUBSTANTIALLY TUBULAR SHAPE, COMPRISING A FRAME DEFINING A PASSAGE FOR THE TUBE BLANK, WELDING MEANS NEAR SAID PASSAGE, A COMBINED FEEDING AND STEERING ROLL MOUNTED TO SUPPORT THE TUBE BLANK AT THE LOWEST POINT THEREOF AND AT BOTH MARGINS BEING WELDED, A CARRIER FOR SAID ROLL MOUNTED IN THE FRAME FOR ROTATION ABOUT AN AXIS EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE LONGITUDINAL DIRECTION OF THE TUBE BLANK, A DRIVING MOTOR FOR SAID ROLL, SAID DRIVING MOTOR BEING SUPPORTED BY SAID CARRIER, A FEELER SENSITIVE TO TURNING OF THE TUBE BLANK ABOUT ITS LONGITUDINAL AXIS, AND MEANS CONTROLLED BY SAID FEELER AND OPERATIVE TO MOVE SAID CARRIER ABOUT IS SUBSTANTIALLY TRANSVERSE AXIS FOR IMPARTING STEERING MOVEMENTS TO THE ROLL AS THE ROLL ADVANCES THE TUBE BLANK PAST SAID WELDING MEANS.
Claim 2
Dependent Claim
144 words
A MACHINE FOR UNITING THE LONGITUDINALLY EDGES OF A TUBE SHANK OF SHEET METAL BENT TO SUBSTANTIALLY TUBULAR SHAPE, COMPRISING A FRAME DEFINING A PASSAGE FOR THE TUBE BLANK, WELDING MEANS NEAR SAID PASSAGE, A COMBINED FEEDING AND STEERING ROLL MOUNTED TO SUPPORT THE TUBE BLANK AT THE LOWEST POINT THEREOF AND AT BOTH MARGINS BEING WELDED, A CARRIER FOR SAID ROLL MOUNTED IN THE FRAME FOR ROTATION ABOUT AN AXIS EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE LONGITUDINAL DIRECTION OF THE TUBE BLANK, A DRIVING MOTOR FOR SAID ROLL, SAID DRIVING MOTOR BEING SUPPORTED BY SAID CARRIER, A FEELER SENSITIVE TO TURNING OF THE TUBE BLANK ABOUT ITS LONGITUDINAL AXIS, AND MEANS CONTROLLED BY SAID FEELER AND OPERATIVE TO MOVE SAID CARRIER ABOUT IS SUBSTANTIALLY TRANSVERSE AXIS FOR IMPARTING STEERING MOVEMENTS TO THE ROLL AS THE ROLL ADVANCES THE TUBE BLANK PAST SAID WELDING MEANS.
References Cited (Backward Citations)
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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) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |