Patent US2534102A successfully refreshed from Google Patents.
US3557597A
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Riveting apparatus
Assignee: Aerpat AG
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Filing: 1967-09-11
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Granted: 1971-01-26
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Expires: 1987-09-11
Abstract
Abstract A REPETITION BLIND-RIVETING GUN, OF THE TYPE IN WHICH A COLUMN OF TUBULAR RIVETS IS CARRIED ON A MANDREL HAVING AN ENLARGED HEAD WHICH IS PULLED THROUGH EACH RIVET IN TURN TO EXPAND IT, HAS A PNEUMATICALLY-OPERATED DEVICE FOR FEEDING THE COLUMN OF RIVETS FORWARD AFTER EACH OPERATION. THIS DEVICE COMPRISES A PISTON, SLIDABLE ALONG THE MANDREL, TO THE REAR SIDE OF WHICH COMPRESSED AIR IS SUPPLIED ONCE IN EACH CYCLE OF OPERATION OF THE GUN. THERE MAY ALSO BE PROVIDED A RELIEF VALVE FOR AUTOMATICALLY VENTING TO ATMOSPHERE THIS COMPRESSED AIR SUPPLY IF THE MANDREL IS NOT SECURELY GRIPPED BY THE JAW-MECHANISM WHICH HOLDS IT IN THE GUN.
Inventors
- 👤 Victor Lorraine Heslop
- 👤 Leonard Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:14
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/30; B21J15/32; B21J15/34; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53478; Y10T29/53487; Y10T29/53496; Y10T29/53709; Y10T29/53717; Y10T29/53726; Y10T29/5373; Y10T29/53739
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |