Patent US3127923A successfully refreshed from Google Patents.
US3127923A
Expired / Lapsed
US
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High energy tube expander
Assignee: Rohr Inc
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Filing: 1961-02-17
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Granted: 1964-04-07
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Expires: 1981-02-17
Abstract
No abstract record available.
Inventors
- 👤 Gilbert C Cadwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:04
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/06; B21D26/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A HIGH ENERGY TUBE EXPANDER OF THE CHARACTER DISCLOSED COMPRISING, IN COMBINATION, MEANS MOUNTABLE EXTERNALLY OF THE TUBE FOR FORMING AN ANNULAR DIE SURFACE AGAINST WHICH AN END PORTION OF THE TUBE MAY BE EXPANDED, AND EXPLOSIVE MEANS INSERTABLE INTO THE TUBE IN FORCE TRANSMITTING RELATION TO THE INNER-WALL OF SAID TUBE PORTION, SAID EXPLOSIVE MEANS INCLUDING AN EXPLOSIVE CHARGE, A RADIALLY VENTED HOLDER FOR SAID CHARGE, AND A RESILIENT RUBBER-LIKE ENERGY TRANSFER DEVICE SLEEVED ON SAID HOLDER AND OPERATIVELY INTERPOSED BETWEEN SAID CHARGE AND SAID INNER-WALL FOR UNIFORMLY APPLYING THERETO THE EXPLOSIVE FORCES APPLIED TO SAID ENERGY TRANSFER DEVICE THROUGH SAID VENTED HOLDER AND GENERATED BY SAID CHARGE WHEN THE SAME IS FIRED.
Claim 2
Dependent Claim
114 words
A HIGH ENERGY TUBE EXPANDER OF THE CHARACTER DISCLOSED COMPRISING, IN COMBINATION, MEANS MOUNTABLE EXTERNALLY OF THE TUBE FOR FORMING AN ANNULAR DIE SURFACE AGAINST WHICH AN END PORTION OF THE TUBE MAY BE EXPANDED, AND EXPLOSIVE MEANS INSERTABLE INTO THE TUBE IN FORCE TRANSMITTING RELATION TO THE INNER-WALL OF SAID TUBE PORTION, SAID EXPLOSIVE MEANS INCLUDING AN EXPLOSIVE CHARGE, A RADIALLY VENTED HOLDER FOR SAID CHARGE, AND A RESILIENT RUBBER-LIKE ENERGY TRANSFER DEVICE SLEEVED ON SAID HOLDER AND OPERATIVELY INTERPOSED BETWEEN SAID CHARGE AND SAID INNER-WALL FOR UNIFORMLY APPLYING THERETO THE EXPLOSIVE FORCES APPLIED TO SAID ENERGY TRANSFER DEVICE THROUGH SAID VENTED HOLDER AND GENERATED BY SAID CHARGE WHEN THE SAME IS FIRED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |