US3071114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic impact tool
Assignee: Individual
•
Filing: 1960-11-07
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Granted: 1963-01-01
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Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Sr Clint S Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:15
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A PNEUMATIC IMPACT TOOL ADAPTED TO OPERATE WHILE TILTED UPWARDLY FROM THE HORIZONTAL COMPRISING IN COMBINATION, A HOLLOW ELONGATED CYLINDER OF SUBSTANTIALLY CONSTANT INTERNAL DIAMETER ALONG THE MAJOR LENGTH THEREOF FORMING A PISTON CHAMBER HAVING A FRONT END AND A REAR END, EXHAUST MEANS LOCATED ADJACENT SAID FRONT END, A SPHERICAL PISTON FREELY RECIPROCAL LONGITUDINALLY IN SAID CHAMBER, A VALVE FOR SELECTIVELY DELIVERING COMPRESSED AIR INTO SAID REAR END OF SAID CHAMBER, SAID VALVE BEING ADAPTED TO ALTERNATELY CONTROL THE ADMITTANCE OF AIR INTO SAID CHAMBER AND PERMIT THE EXHAUSTION OF AIR CONTAINED IN SAID CHAMBER BETWEEN SAID PISTON AND SAID REAR END, A TRIGGER FOR ACTUATING SAID VALVE, A PUNCH, MEANS MAINTAINING SAID PUNCH COAXIAL WITH SAID CYLINDER AT THE FRONT END OF SAID CHAMBER, SAID PUNCH BEING FREELY LONGITUDINALLY RECIPROCAL WITH RESPECT TO SAID CHAMBER AND HAVING A REARWARDLY FACING PISTON-CONTACTING HEAD ON ONE END THEREOF AND MEANS DEFINING THE LIMITS OF RECIPROCATION OF SAID PUNCH, WHEREBY SAID PISTON AND SAID PUNCH ARE URGED TO AN IMPACT CYCLE BEGINNING POSITION DUE TO GRAVITY.
Claim 2
Dependent Claim
175 words
A PNEUMATIC IMPACT TOOL ADAPTED TO OPERATE WHILE TILTED UPWARDLY FROM THE HORIZONTAL COMPRISING IN COMBINATION, A HOLLOW ELONGATED CYLINDER OF SUBSTANTIALLY CONSTANT INTERNAL DIAMETER ALONG THE MAJOR LENGTH THEREOF FORMING A PISTON CHAMBER HAVING A FRONT END AND A REAR END, EXHAUST MEANS LOCATED ADJACENT SAID FRONT END, A SPHERICAL PISTON FREELY RECIPROCAL LONGITUDINALLY IN SAID CHAMBER, A VALVE FOR SELECTIVELY DELIVERING COMPRESSED AIR INTO SAID REAR END OF SAID CHAMBER, SAID VALVE BEING ADAPTED TO ALTERNATELY CONTROL THE ADMITTANCE OF AIR INTO SAID CHAMBER AND PERMIT THE EXHAUSTION OF AIR CONTAINED IN SAID CHAMBER BETWEEN SAID PISTON AND SAID REAR END, A TRIGGER FOR ACTUATING SAID VALVE, A PUNCH, MEANS MAINTAINING SAID PUNCH COAXIAL WITH SAID CYLINDER AT THE FRONT END OF SAID CHAMBER, SAID PUNCH BEING FREELY LONGITUDINALLY RECIPROCAL WITH RESPECT TO SAID CHAMBER AND HAVING A REARWARDLY FACING PISTON-CONTACTING HEAD ON ONE END THEREOF AND MEANS DEFINING THE LIMITS OF RECIPROCATION OF SAID PUNCH, WHEREBY SAID PISTON AND SAID PUNCH ARE URGED TO AN IMPACT CYCLE BEGINNING POSITION DUE TO GRAVITY.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |