US3022407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining cast iron to steel
Assignee: Motors Liquidation Co
•
Filing: 1957-11-29
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Granted: 1962-02-20
•
Expires: 1977-11-29
Abstract
No abstract record available.
Inventors
- 👤 George H Robinson
- 👤 Eugene G Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:26
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD OF MAKING A COMPOSITE BODY FOR AN INTERNAL COMBUSTION ENGINE VALUE LIFTER, SAID METHOD COMPRISING THE STEPS OF ASSEMBLING A TUBULAR STEEL BODY MEMBER AND A CAST IRON END CAP FOR SAID TUBULAR MEMBER SAID END CAP HAVING A REDUCED DIAMETER PORTION FORMING AN ANNULAR SHOULDER THEREON, POSITIONING THE REDUCED DIAMETER PORTION OF SAID END CAP WITHIN SAID TUBE SO AS TO ABUT SAID SHOULDER AGAINST THE END OF THE TUBE, SAID REDUCED DIAMETER PORTION OF SAID END CAP AND THE INNER SURFACE OF SAID TUBE BEING CLOSELY FITTED TOGETHER, PREFERENTIALLY HEATING AN AREA OF SAID TUBULAR MEMBER IN SUCH A MANNER AS TO PRINCIPALLY CONDUCTIVE HEAT SAID END CAP THROUGH POINTS OF CANTACT WITH SAID TUBULAR MEMBER, APPLYING SAID HEAT TO SAID TUBULAR MEMBER TO FORM
Claim 2
Independent Claim
129 words
A METHOD OF MAKING A COMPOSITE BODY FOR AN INTERNAL COMBUSTION ENGINE VALUE LIFTER, SAID METHOD COMPRISING THE STEPS OF ASSEMBLING A TUBULAR STEEL BODY MEMBER AND A CAST IRON END CAP FOR SAID TUBULAR MEMBER SAID END CAP HAVING A REDUCED DIAMETER PORTION FORMING AN ANNULAR SHOULDER THEREON, POSITIONING THE REDUCED DIAMETER PORTION OF SAID END CAP WITHIN SAID TUBE SO AS TO ABUT SAID SHOULDER AGAINST THE END OF THE TUBE, SAID REDUCED DIAMETER PORTION OF SAID END CAP AND THE INNER SURFACE OF SAID TUBE BEING CLOSELY FITTED TOGETHER, PREFERENTIALLY HEATING AN AREA OF SAID TUBULAR MEMBER IN SUCH A MANNER AS TO PRINCIPALLY CONDUCTIVE HEAT SAID END CAP THROUGH POINTS OF CANTACT WITH SAID TUBULAR MEMBER, APPLYING SAID HEAT TO SAID TUBULAR MEMBER TO FORM
References Cited (Backward Citations)
GB286823A
Cited
US1691778A
Cited
US1745886A
Cited
US2397308A
Cited
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Cited
US2798141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |