US3177736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth auger power driving apparatus
Assignee: Individual
•
Filing: 1963-04-25
•
Granted: 1965-04-13
•
Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Donald G Kilmartin
- 👤 Bernard M Whited
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:08
CPC Classifications
E; E21; E21B; E21B11/00; E21B11/005; E21B3/00; E21B3/02; Y; Y10; Y10T; Y10T408/00; Y10T408/65; Y10T408/91; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1966; Y10T74/19665
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
ROTARY POWER DRIVING APPARATUS FOR EARTH AUGERS AND THE LIKE HAVING IN COMBINATION AN ANNULAR DRIVING CHUCK WITH RELEASABLE MEANS FOR CONNECTING THE SAME TO AN ELONGATED AUGER SHAFT EXTENDING THERETHROUGH; A ROTARY POWER SOURCE UNIT; AN OFFSET DRIVING CONNECTION BETWEEN THE CHUCK AND THE POWER SOURCE AND COMPRISING A RING GEAR FIXED TO SAID CHUCK CONCENTRICALLY THEREOF FOR DRIVING THE SAME, BEARING MEANS CONCENTRICALLY JOURNALING SAID RING GEAR AND CHUCK ASSEMBLY, A DRIVING PINION MESHED WITH SAID RING GEAR, A STUB SHAFT CONNECTED TO SAID PINION FOR DRIVING THE SAME AND EXTENDING OUTWARDLY OF THE RING GEAR IN RADIALLY OFFSET RELATION THERETO, MEANS ESTABLISHING DRIVING CONNECTION BETWEEN THE STUB SHAFT AND THE POWER SOURCE, MEANS PREVENTING ROTATION OF THE POWER SOURCE ABOUT THE AXIS OF THE STUB SHAFT AND MEANS PREVENTING ROTATION OF THE POWER SOURCE ABOUT THE AXIS THROUGH SAID ANNULAR CHUCK.
Claim 2
Dependent Claim
144 words
ROTARY POWER DRIVING APPARATUS FOR EARTH AUGERS AND THE LIKE HAVING IN COMBINATION AN ANNULAR DRIVING CHUCK WITH RELEASABLE MEANS FOR CONNECTING THE SAME TO AN ELONGATED AUGER SHAFT EXTENDING THERETHROUGH; A ROTARY POWER SOURCE UNIT; AN OFFSET DRIVING CONNECTION BETWEEN THE CHUCK AND THE POWER SOURCE AND COMPRISING A RING GEAR FIXED TO SAID CHUCK CONCENTRICALLY THEREOF FOR DRIVING THE SAME, BEARING MEANS CONCENTRICALLY JOURNALING SAID RING GEAR AND CHUCK ASSEMBLY, A DRIVING PINION MESHED WITH SAID RING GEAR, A STUB SHAFT CONNECTED TO SAID PINION FOR DRIVING THE SAME AND EXTENDING OUTWARDLY OF THE RING GEAR IN RADIALLY OFFSET RELATION THERETO, MEANS ESTABLISHING DRIVING CONNECTION BETWEEN THE STUB SHAFT AND THE POWER SOURCE, MEANS PREVENTING ROTATION OF THE POWER SOURCE ABOUT THE AXIS OF THE STUB SHAFT AND MEANS PREVENTING ROTATION OF THE POWER SOURCE ABOUT THE AXIS THROUGH SAID ANNULAR CHUCK.
References Cited (Backward Citations)
US1401780A
Cited
US2761300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |