Patent US3200893A successfully refreshed from Google Patents.
US3200893A
Expired / Lapsed
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Vibration elimination
Assignee: Individual
•
Filing: 1962-04-09
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Granted: 1965-08-17
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Expires: 1982-04-09
Abstract
No abstract record available.
Inventors
- 👤 Leavell Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:57
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/24; B25D17/245; B25D2250/00; B25D2250/171
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
IN COMBINATIN WITH A PNEUMATIC PERCUSSIVE TOOL HAVING A MAIN CASING ELEMENT DEFINING A CYLINDER CONTAINING A PISTON RECIPROCABLE THEREIN BY AN ALTERNATE APPLICATION OF PNEUMATIC PRESSUR TO THE OPPOSITE ENDS THEROF WHICH SIMULTANEOUSLY PRODUCES REACTIVE VIBRATION OF THE MAIN CASING ELEMENT, A SECOND CASING ELEMENT RELATED TO SAID MAIN CASING ELEMENT FOR RELATIVE RECIPROCABLE MOVEMENTS GENERALLY ALONT THE AXIS OF RECIPROCATION OF SAID PISTON, CONNECTING LINKAGE FOR EFFECTUATING A NECESSARY TRANSMISSION OF FORCE FROM ONE OF SAID ELEMENTS TO THE OTHER IN EITHER DIRECTION ALONG SUCH AXIS OF RECIPROCATION, MEANS FOR RESTRICTING THE VALUE OF SUCH FORCE COMMUNICABLE THROUGH SAID LINKAGE TO A RELATIVELY CONSTANT VALUE THROUGHOUT ANY CYCLE OF THE VIBRATORY RECIPROCATION OF THE MAIN CASING ELEMENT, FEEDBACK MEANS FOR REGULATIVELY ALTERING SUCH CONSTANT VLUE TO MAINTAIN A PREDETERMINED OPERATIONAL RELATIN BETWEEN SAID CASING ELE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |