US3877282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swaging tool for joining two telescopic pipe ends
Assignee: Texaco Inc
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Filing: 1973-09-28
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Granted: 1975-04-15
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Expires: 1993-09-28
Abstract
Abstract At least two methods for swaging one vertical smaller tubular member internally of a larger tubular member are disclosed. One device for practicing the method comprises a cylindrical swage block for loosely fitting in the large tubular member and resting on the upper edge of the inner smaller tubular member. A plurality (preferably six) pistons and cylinders are suspended from the swage block a precise distance below the upper edge and actuatable radially from the longitudinal axis of the smaller tubular member for deforming the upper edge portion thereof against the larger tubular member for providing more working space internally of the tubular members. A modification comprises a plurality as seven axially spaced apart, parallel layers of swaging pistons and cylinders suspended from the swage block. Other new devices utilizing the multiple piston and cylinder swage are a mechanisms for cold-work connecting two telescopic pipe ends together, and a mechanism for making a new pile with anchor knobs for increased load carrying capacity and pull-out resistance.
Inventors
- 👤 Ivo C Pogonowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:48
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02; B21D39/00; B21D39/04; B21D39/046; B21D39/08; B21D39/20; Y; Y10; Y10S; Y10S425/00; Y10S425/218
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
129 words
A swage for sealing together two telescopic pipe ends having a longitudinal axis comprising, a. roller supported swage block means in the telescopic pipe ends, b. a plurality of rows of pistons operable in cylinders, each row having a plurality of pistons mounted for movement in a radial direction from said pipe longitudinal axis, c. telescopic arm means for moving said roller supported swage block means longitudinally in the pipes and rotatably about the pipe longitudinal axis, d. means for actuating said pistons in said cylinders for forminG depressions in the two pipes, and e. said piston actuating means being responsive to said telescopic arm means for forming parallel rows of depressions through the pipe ends around the internal periphery of the pipes to seal the pipe ends together.
Claim 2
Dependent Claim
129 words
A swage for sealing together two telescopic pipe ends having a longitudinal axis comprising, a. roller supported swage block means in the telescopic pipe ends, b. a plurality of rows of pistons operable in cylinders, each row having a plurality of pistons mounted for movement in a radial direction from said pipe longitudinal axis, c. telescopic arm means for moving said roller supported swage block means longitudinally in the pipes and rotatably about the pipe longitudinal axis, d. means for actuating said pistons in said cylinders for forminG depressions in the two pipes, and e. said piston actuating means being responsive to said telescopic arm means for forming parallel rows of depressions through the pipe ends around the internal periphery of the pipes to seal the pipe ends together.
Claim 3
Dependent Claim
57 words
A swage as recited in claim 1 wherein, a. an annulus of elastic material comprises an axially elongated annular solid sheet, and b. said axially elongated annular solid sheet being positioned between the telescopic pipe ends for being deformed with the telescopic pipe ends over a length of at least over four axial rows of pipe depressions.
Claim 4
Dependent Claim
140 words
A swage for sealing together two horizontal telescopic pipe ends having a longitudinal axis comprising, a. a hexagonal swage block centrally supported on rollers internally of the two pipes, b. a plurality of rows of pistons operable in cylinders, a piston mounted in each side of the hexagonal swage block for movement in a radial direction from said longitudinal axis of the pipes, c. a tractor having telescopic arm means for positioning said roller supported hexagonal swage block centrally in the pipes, d. said telescopic arm means being rotatable for positioning said roller supported hexagonal swage block at various positions around the internal periphery of the pipes, and e. hydraulic means for actuating said pistons in said cylinders for forming parallel rows of depressions through the pipe ends around the internal periphery of the pipes to seal the ends together.
Claim 5
Dependent Claim
140 words
A swage for sealing together two horizontal telescopic pipe ends having a longitudinal axis comprising, a. a hexagonal swage block centrally supported on rollers internally of the two pipes, b. a plurality of rows of pistons operable in cylinders, a piston mounted in each side of the hexagonal swage block for movement in a radial direction from said longitudinal axis of the pipes, c. a tractor having telescopic arm means for positioning said roller supported hexagonal swage block centrally in the pipes, d. said telescopic arm means being rotatable for positioning said roller supported hexagonal swage block at various positions around the internal periphery of the pipes, and e. hydraulic means for actuating said pistons in said cylinders for forming parallel rows of depressions through the pipe ends around the internal periphery of the pipes to seal the ends 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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |