US3106134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid actuated hammer and nailer
Assignee: INVENTIONS MANAGEMENT CORP
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Filing: 1959-03-09
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Granted: 1963-10-08
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Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Lloyd M Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:28
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04; B25C1/041; Y; Y10; Y10S; Y10S91/00; Y10S91/03; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8663; Y10T137/87169; Y10T137/87193
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A FLUID ACTUATED HAMMER AND NAILER COMPRISING A CASING, AN INTERNAL SLEEVE IN THE CASING, A MAIN PISTON IN THE SLEEVE HAVING AN EXTERNAL SURFACE FORMED WITH A MAIN PORTION THEREOF, A FIRST AIR SPACE BETWEEN THE MAJOR PORTION OF THE EXTERNAL SURFACE OF THE PISTON AND THE SLEEVE, A SECOND AIR SPACE ABOVE THE MAIN PISTON, AN AIR CHAMBER ABOVE THE SLEEVE AND PISTON, A CLOSURE CAP ON THE CASING, SAID AIR CHAMBER AND CLOSURE CAP HAVING PASSAGEWAYS THEREIN FOR INGRESS OF AIR, A SECONDARY PISTON MOVABLE IN THE AIR CHAMBER ABOVE THE MAIN PISTON, MAIN VALVE MEANS IN THE PASSAGES LEADING TO THE SECONDARY PISTON FOR ALLOWING ENTRY OF AIR TO THE SECOND SPACE ABOVE THE MAIN PISTON, AN INLET FOR COMPRESSED AIR IN THE CASTING AND TRIGGER OPERATED VALVE MEANS IN THE INLET, SAID TRIGGER OPERATED VALVE MEANS COMPRISING A FIRST VALVE COMPOSED OF TWO ELEMENT A SECONDARY VALVE MOUNTED ADJACENT THE TRIGGER FOR INITIAL OPERATION, AND A DISK SLIDABLY MOUNTED BETWEEN THE FIRST AND THE SECONDARY VALVES.
Claim 2
Dependent Claim
171 words
A FLUID ACTUATED HAMMER AND NAILER COMPRISING A CASING, AN INTERNAL SLEEVE IN THE CASING, A MAIN PISTON IN THE SLEEVE HAVING AN EXTERNAL SURFACE FORMED WITH A MAIN PORTION THEREOF, A FIRST AIR SPACE BETWEEN THE MAJOR PORTION OF THE EXTERNAL SURFACE OF THE PISTON AND THE SLEEVE, A SECOND AIR SPACE ABOVE THE MAIN PISTON, AN AIR CHAMBER ABOVE THE SLEEVE AND PISTON, A CLOSURE CAP ON THE CASING, SAID AIR CHAMBER AND CLOSURE CAP HAVING PASSAGEWAYS THEREIN FOR INGRESS OF AIR, A SECONDARY PISTON MOVABLE IN THE AIR CHAMBER ABOVE THE MAIN PISTON, MAIN VALVE MEANS IN THE PASSAGES LEADING TO THE SECONDARY PISTON FOR ALLOWING ENTRY OF AIR TO THE SECOND SPACE ABOVE THE MAIN PISTON, AN INLET FOR COMPRESSED AIR IN THE CASTING AND TRIGGER OPERATED VALVE MEANS IN THE INLET, SAID TRIGGER OPERATED VALVE MEANS COMPRISING A FIRST VALVE COMPOSED OF TWO ELEMENT A SECONDARY VALVE MOUNTED ADJACENT THE TRIGGER FOR INITIAL OPERATION, AND A DISK SLIDABLY MOUNTED BETWEEN THE FIRST AND THE SECONDARY VALVES.
References Cited (Backward Citations)
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US2854953A
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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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |