Patent US3275047A successfully refreshed from Google Patents.
US3275047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener holder for power tools
Assignee: Ingersoll Rand Co
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Filing: 1964-08-19
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Granted: 1966-09-27
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Melvin L Kulman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:28
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
A FASTENER HOLDER FOR A POWER TOOL HAVING A FASTERNERENGAGING MEMBER MOUNTED FOR ROTATION AND ROTATABLY DRIVEN BY A ROTARY MOTOR, SAID FASTENER HOLDER COMPRISING: (A) A HOUSING SURROUNDING SAID FASTENER-ENGAGING MEMBER AND CONNECTED AT ONE END TO SAID POWER TOOL FOR AXIAL MOVEMENT RELATIVE TO THE LATTER, (B) A RECESS IN THE DISTAL END OF SAID HOUSING, (C) SAID RECESS ADAPTED TO RECEIVE THE HEAD OF A FASTENER THEREIN, (D) STOP MEANS TO SAID RECESS TO ABUT THE HEAD OF SAID FASTENER, AND (E) PASSAGE MEANS IN SAID HOUSING COMMINICATING WITH A SOURCE OF PRESSURIZED AIR AND WITH SAID RECESS TO DIRECT THE PRESSURIZED AIR AGAINST THE UNDERSIDE OF THE HEAD OF A FASTENER AND THEREBY FORCE AND MAINTAIN THE HEAD AGAINST STOP MEANS UNTIL THE HEAD IS ENGAGED BY SAID FASTENER-ENGAGING MEMBER.
References Cited (Backward Citations)
US2570164A
Cited
US2625967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |