Patent US3172123A successfully refreshed from Google Patents.
US3172123A
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Explosive actuated tool and method for driving a fastening stud or similar element
Assignee: HELDERMAN
•
Filing: 1962-10-03
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Granted: 1965-03-09
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Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 James F Helderman
- 👤 Jr William H Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:03
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/08; B25C1/10; B25C1/12; B25C1/123; B25C1/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF DRIVING A STUD OR SIMILAR ELEMENT BY AN EXPLOSIVE CHARGE COMPRISING LOADING A CARTRIDE IN THE BORE OF A BARREL MEMBER WITH THE FIRING SURFACE THEREOF FACING OUTWARDLY OF THE BORE, POSITIONING A STUD IN THE BORE WITH AN END EXTENDING OUTWARDLY BEYOND THE BARREL MEMBER, STRIKING THE EXTENDING END OF THE STUD AGAINST A WORK PIECE TO CAUSE THE STUD TO MOVE INWARDLY TO PRODUCE AN IMPACT AGAINST SAID CARTRIDGE TO IGNITE THE CARTRIDGE WITH THE RESULTING EXPLOSION DRIVING THE STUD INTO THE WORK PIECE.
Claim 2
Independent Claim
89 words
A METHOD OF DRIVING A STUD OR SIMILAR ELEMENT BY AN EXPLOSIVE CHARGE COMPRISING LOADING A CARTRIDE IN THE BORE OF A BARREL MEMBER WITH THE FIRING SURFACE THEREOF FACING OUTWARDLY OF THE BORE, POSITIONING A STUD IN THE BORE WITH AN END EXTENDING OUTWARDLY BEYOND THE BARREL MEMBER, STRIKING THE EXTENDING END OF THE STUD AGAINST A WORK PIECE TO CAUSE THE STUD TO MOVE INWARDLY TO PRODUCE AN IMPACT AGAINST SAID CARTRIDGE TO IGNITE THE CARTRIDGE WITH THE RESULTING EXPLOSION DRIVING THE STUD INTO THE WORK PIECE.
References Cited (Backward Citations)
US2166041A
Cited
US2533851A
Cited
US2637241A
Cited
US2804620A
Cited
US2761348A
Cited
US3112487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |