US3068563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal joining method
Assignee: Westinghouse Electric Corp
•
Filing: 1958-11-05
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Granted: 1962-12-18
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Expires: 1978-11-05
Abstract
No abstract record available.
Inventors
- 👤 George H Reverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/10; B; B21; B21D; B21D39/00; B21D39/04; F16L13/14; F16L13/141; Y; Y10; Y10S; Y10S285/00; Y10S285/915; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T29/53; Y10T29/53996
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
A METHOD OF JOINING METALLIC TUBING COMPRISING THE STEPS OF PROVIDING A FIRST TUBE HAVING AN END PORTION ADAPTED TO RECEIVE AN END PORTION OF A SECOND TUBE WITH RADICAL CLEARANCE BETWEEN TEH CONTIGUOUS SURFACES OF THE TWO TUBES, COATING THE CONTIGUOUS SURFACES OF AT LEAST ONE OF SAID TUBES WITH A HEAT CURABLE, EPOXY RESIN WHICH IS ADHESIVE TO THE METAL OF BOTH TUBES, INSERTING SAID END PORTION OF THE SECOND TUBE INTO THE BORE OF SAID FIRST TUBE, WORKING THE FIRST TUBE TO REDUCE THE DIAMETER THEREOF THROUGHOUT THE LENGTH THEREOF WHICH OVERLAPS THE SECOND TUBE TO CAUSE SAID FIRST TO GRIP SAID SECOND TUBE, SIMULTANEOUSLY WORKING AT LEAST TWO SPACED ANNULAR REGIONS OF THE FIRST TUBE WITHIN SAID LENGTH TO FURTHER REDUCE THE DIAMETER OF SAID REGIONS, THE REDUCTION IN SAID REGIONS BEING SUFFICIENT TO DEFORM BOTH OF SAID TUBES RADIALLY INWARDLY AND TO REDUCE THE THICKNESS OF THE RESIN IN SAID REGIONS SUBSTANTIALLY TO ZERO, AND THEREAFTER HEATING THE JOINT TO CURE SAID RESIN WHERENY SAID REGION OF SUBSTANTIALLY ZERO THICKNESS EPOXY RESIN WILL PREVENT CRACKS OR FISSURES THAT DEVELOP AT THE ENDS OF THE JOINT FROM PROGRESSING ENTIRELY THROUGH THE LENGTH OF THE EPOXY RESIN BOND.
Claim 2
Independent Claim
201 words
A METHOD OF JOINING METALLIC TUBING COMPRISING THE STEPS OF PROVIDING A FIRST TUBE HAVING AN END PORTION ADAPTED TO RECEIVE AN END PORTION OF A SECOND TUBE WITH RADICAL CLEARANCE BETWEEN TEH CONTIGUOUS SURFACES OF THE TWO TUBES, COATING THE CONTIGUOUS SURFACES OF AT LEAST ONE OF SAID TUBES WITH A HEAT CURABLE, EPOXY RESIN WHICH IS ADHESIVE TO THE METAL OF BOTH TUBES, INSERTING SAID END PORTION OF THE SECOND TUBE INTO THE BORE OF SAID FIRST TUBE, WORKING THE FIRST TUBE TO REDUCE THE DIAMETER THEREOF THROUGHOUT THE LENGTH THEREOF WHICH OVERLAPS THE SECOND TUBE TO CAUSE SAID FIRST TO GRIP SAID SECOND TUBE, SIMULTANEOUSLY WORKING AT LEAST TWO SPACED ANNULAR REGIONS OF THE FIRST TUBE WITHIN SAID LENGTH TO FURTHER REDUCE THE DIAMETER OF SAID REGIONS, THE REDUCTION IN SAID REGIONS BEING SUFFICIENT TO DEFORM BOTH OF SAID TUBES RADIALLY INWARDLY AND TO REDUCE THE THICKNESS OF THE RESIN IN SAID REGIONS SUBSTANTIALLY TO ZERO, AND THEREAFTER HEATING THE JOINT TO CURE SAID RESIN WHERENY SAID REGION OF SUBSTANTIALLY ZERO THICKNESS EPOXY RESIN WILL PREVENT CRACKS OR FISSURES THAT DEVELOP AT THE ENDS OF THE JOINT FROM PROGRESSING ENTIRELY THROUGH THE LENGTH OF THE EPOXY RESIN BOND.
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) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |