US3094901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatically operated tacker
Assignee: Duo Fast Corp
•
Filing: 1958-05-02
•
Granted: 1963-06-25
•
Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Oscar A Wandel
- 👤 Richard H Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:21
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04; B25C1/041; Y; Y10; Y10S; Y10S91/00; Y10S91/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A FASTENER DRIVING APPARATUS COMPRISING A HOUSING DEFINING A PAIR OF RESERVOIRS AND AN OPERATING CHAMBER, FASTENER DRIVING MEANS MOVABLE WITHIN SAID CHAMBER, ONE OF SAID RESERVOIRS BEING SUPPLIED WITH AIR UNDER PRESSURE FROM A SOURCE THEREOF, THE OTHER OF SAID RESERVOIRS BEING DISPOSED CLOSELY ADJACENT SAID CHAMBER AND IN CONTINUOUS FLUID COMMUNICATION WITH SAID ONE RESERVOIR, SAID OTHER RESERVOIR HAVING A VOLUME OF THE ORDER OF FROM ONE-EIGHT TO ONE-HALF OF THE VOLUME OF SAID CHAMBER, VALVE MEANS CONTROLLING COMMUNICATION BETWEEN SAID OTHER RESERVOIR AND SAID CHAMBER, AND CONTROL MEANS FOR OPERATING SAID VALVE MEANS TO ADMIT AIR FROM SAID OTHER RESERVOIR TO SAID CHAMBER THEREBY TO OPERATE SAID FAS-
Claim 2
Dependent Claim
111 words
A FASTENER DRIVING APPARATUS COMPRISING A HOUSING DEFINING A PAIR OF RESERVOIRS AND AN OPERATING CHAMBER, FASTENER DRIVING MEANS MOVABLE WITHIN SAID CHAMBER, ONE OF SAID RESERVOIRS BEING SUPPLIED WITH AIR UNDER PRESSURE FROM A SOURCE THEREOF, THE OTHER OF SAID RESERVOIRS BEING DISPOSED CLOSELY ADJACENT SAID CHAMBER AND IN CONTINUOUS FLUID COMMUNICATION WITH SAID ONE RESERVOIR, SAID OTHER RESERVOIR HAVING A VOLUME OF THE ORDER OF FROM ONE-EIGHT TO ONE-HALF OF THE VOLUME OF SAID CHAMBER, VALVE MEANS CONTROLLING COMMUNICATION BETWEEN SAID OTHER RESERVOIR AND SAID CHAMBER, AND CONTROL MEANS FOR OPERATING SAID VALVE MEANS TO ADMIT AIR FROM SAID OTHER RESERVOIR TO SAID CHAMBER THEREBY TO OPERATE SAID FAS-
References Cited (Backward Citations)
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US2713165A
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |