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US3249279A
Expired / Lapsed
US
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Bolt and charge operated tool for driving in a bolt
Assignee: Individual
•
Filing: 1963-12-16
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Granted: 1966-05-03
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Behrend Herbert
- 👤 Behrend Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:34
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/08; B25C1/10; B25C1/18; B25C1/188; B25C1/14; F; F16; F16B; F16B19/00; F16B19/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A CHARGE OPERATED BOLT DRIVING TOOL COMPRISING IN COMBINATION A BARREL HAVING A BORE AT ONE END FOR RECEIVING AND EJECTING A HEAD BOLT HAVING A FRICTIONALLY ENGAGED RETAINING MEANS ASSOCIATED THEREWITH, A FIRING CHAMBER AT THE OTHER END OF SAID BARREL FOR RECEIVING A FIRING CHARGE, A DRIVING CHAMBER BETWEEN SAID BORE AND SAID FIRING CHAMBER AND COMMUNICATING THEREWITH, AND A COMPOSITE PISTON MEMBER RECEIVED FOR RECIPROCATION IN SAID BARREL AND INCLUDING (A) A PISTON HEAD HAVING A DIAMETER SLIGHTLY LESS THAN THE INNER DIAMETER OF SAID BORE, (B) A RAM PORTION EXTENDING FROM SAID PISTON TOWARD SAID ONE END OF SAID BARREL CENTRALLY OF SAID BORE, (C) A DRIVING PORTION EXTENDING CENTRALLY FROM SAID PISTON HEAD TOWARD SAID OTHER END OF SAID BARREL AND RECEIVED FOR RECIPROCATION IN SAID DRIVING CHAMBER, (D) A SUBSTANTIALLY SMOOTH WALLED AXIAL RECESS IN THE END OF SAID RAM PORTION FOR RECEIVING THE HEAD OF SAID BOLT AND SAID RETAINING MEANS.
Claim 2
Dependent Claim
158 words
A CHARGE OPERATED BOLT DRIVING TOOL COMPRISING IN COMBINATION A BARREL HAVING A BORE AT ONE END FOR RECEIVING AND EJECTING A HEAD BOLT HAVING A FRICTIONALLY ENGAGED RETAINING MEANS ASSOCIATED THEREWITH, A FIRING CHAMBER AT THE OTHER END OF SAID BARREL FOR RECEIVING A FIRING CHARGE, A DRIVING CHAMBER BETWEEN SAID BORE AND SAID FIRING CHAMBER AND COMMUNICATING THEREWITH, AND A COMPOSITE PISTON MEMBER RECEIVED FOR RECIPROCATION IN SAID BARREL AND INCLUDING (A) A PISTON HEAD HAVING A DIAMETER SLIGHTLY LESS THAN THE INNER DIAMETER OF SAID BORE, (B) A RAM PORTION EXTENDING FROM SAID PISTON TOWARD SAID ONE END OF SAID BARREL CENTRALLY OF SAID BORE, (C) A DRIVING PORTION EXTENDING CENTRALLY FROM SAID PISTON HEAD TOWARD SAID OTHER END OF SAID BARREL AND RECEIVED FOR RECIPROCATION IN SAID DRIVING CHAMBER, (D) A SUBSTANTIALLY SMOOTH WALLED AXIAL RECESS IN THE END OF SAID RAM PORTION FOR RECEIVING THE HEAD OF SAID BOLT AND SAID RETAINING MEANS.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |