US3265378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machines for annealing the welded seams of longitudinally welded tubes
Assignee: Schloemann AG
•
Filing: 1964-12-29
•
Granted: 1966-08-09
•
Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Grube Dictrich
- 👤 Warnke Karl
- 👤 Sommerfeld Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:02
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A MACHINE FOR ANNEALING WELDED SEAMS IN LONGITUDINALLY WELDED TUBES, COMPRISING: A BASE STRUCTURE, MEANS CARRIED BY THE BASE STRUCTURE FOR SUPPORTING A WELDED PIPE TO BE ANNEALED, A SYSTEM FOR SWINGING LEVERS PIVOTALLY CARRIED BY THE BASE STRUCTURE, A FRAME SUSPENDED FROM THE SWINGING LEVERS AT A SELECTED HEIGHT ABOVE THE TUBE WELD TO BE ANNEALED, AN ANNEALING DEVICE CARRIED BY THE SAID FRAME, AT LEAST ONE DOUBLE-ACTING PISTON-AND-CYLINDER UNIT, MEANS OPERATIVELY CONNECTING A PISTON OF THE PISTON-ANDCYLINDER UNIT WITH THE SYSTEM OF SWINGING LEVERS, MEANS FOR SELECTIVELY SUPPLYING FLUID UNDER PRESSURE TO THE CYLINDER SPACES OF THE PISTON-AND-CYLINDER UNIT, AND THEREBY CONTROLLING THE HEIGHT OF THE ANNEALING DEVICE ABOVE THE TUBE WELD TO BE ANNEALED, AND MEANS FOR REGULATING THE SUPPLY OF PRESSURE FLUID TO THE PISTON-AND-CYLINDER UNIT IN DEPENDENCE UPON THE DISTANCE OF THE ANNEALING DEVICE FROM THE WELDED SEAM OF THE TUBE.
Claim 2
Dependent Claim
146 words
A MACHINE FOR ANNEALING WELDED SEAMS IN LONGITUDINALLY WELDED TUBES, COMPRISING: A BASE STRUCTURE, MEANS CARRIED BY THE BASE STRUCTURE FOR SUPPORTING A WELDED PIPE TO BE ANNEALED, A SYSTEM FOR SWINGING LEVERS PIVOTALLY CARRIED BY THE BASE STRUCTURE, A FRAME SUSPENDED FROM THE SWINGING LEVERS AT A SELECTED HEIGHT ABOVE THE TUBE WELD TO BE ANNEALED, AN ANNEALING DEVICE CARRIED BY THE SAID FRAME, AT LEAST ONE DOUBLE-ACTING PISTON-AND-CYLINDER UNIT, MEANS OPERATIVELY CONNECTING A PISTON OF THE PISTON-ANDCYLINDER UNIT WITH THE SYSTEM OF SWINGING LEVERS, MEANS FOR SELECTIVELY SUPPLYING FLUID UNDER PRESSURE TO THE CYLINDER SPACES OF THE PISTON-AND-CYLINDER UNIT, AND THEREBY CONTROLLING THE HEIGHT OF THE ANNEALING DEVICE ABOVE THE TUBE WELD TO BE ANNEALED, AND MEANS FOR REGULATING THE SUPPLY OF PRESSURE FLUID TO THE PISTON-AND-CYLINDER UNIT IN DEPENDENCE UPON THE DISTANCE OF THE ANNEALING DEVICE FROM THE WELDED SEAM OF THE TUBE.
References Cited (Backward Citations)
US2582955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |