Patent FR25252E successfully refreshed from Google Patents.
Patent US3208307A successfully refreshed from Google Patents.
US3208307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handle for grinding operations
Assignee: Individual
•
Filing: 1963-05-15
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Granted: 1965-09-28
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Agren Bengt Assar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:33
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/02; B23; B23B; B23B45/00; B23B45/003; B23B45/008; B24B23/022; B24B27/00; B24B27/02; B24B41/00; B24B41/04; F; F16; F16H; F16H13/00; F16H13/06; F16H13/08; Y; Y10; Y10S; Y10S475/00; Y10S475/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
IN A HANDLE OF THE TYPE HAVING AN INPUT SHAFT ADAPTED TO BE DRIVEN AND AN OUTPUT SPINDLE AXIALLY ALIGNED WITH THE INPUT SHAFT AND ADAPTED TO DRIVE A TOOL, IN COMBINATION, AN INPUT SHAFT ROTATABLY MOUNTED IN THE HANDLE AND TERMINATING IN A RADIALLY ENLARGED PORTION HAVING AXIALLY EXTENDING MEMBERS FORMING RECESSES THEREBETWENE, A PLURALITY OF BALLS ONE LOCATED IN EACH OF SAID RECESSES, A STATIONARY BALL RACE SURROUNDING SAID SHAFT EXTENSIONS, SAID BALL RACE BEING FORMED TO BE CONTACTED BY SAID BALLS ALONG TWO CIRCULAR LINES OF CONTACT SPACED APART A DISTANCE LESS THAN THE DIAMETER OF SAID BALLS AND AN OUTPUT SPINDLE HAVING A CONICAL INNER END, SAID CONICAL END BEING CONTACTED BY SAID BALLS ALONG A CIRCULAR LINE OF CONTACT, SAID LINE OF CONTACT ON SAID BALLS BEING AT SUBSTANTIALLY THE DIAMETER OF THE BALLS, SAID RADIALLY ENLARGED SHAFT PORTIONS, SAID BALLS, SAID STATIONARY RACEWAY AND SAID CONICAL SPINDLE END CONSTITUTING A FRICTIONAL PLANETARY DRIVE, THE RATIO OF WHICH CAN BE MODIFIED BY ALTERING THE DIAMETERS OF SAID CIRCULAR LINE OF CONTACT OF SAID RACEWAY WITHOUT ALTERING THE RADIA DIMENSION OF THE HANDLE.
Claim 2
Dependent Claim
187 words
IN A HANDLE OF THE TYPE HAVING AN INPUT SHAFT ADAPTED TO BE DRIVEN AND AN OUTPUT SPINDLE AXIALLY ALIGNED WITH THE INPUT SHAFT AND ADAPTED TO DRIVE A TOOL, IN COMBINATION, AN INPUT SHAFT ROTATABLY MOUNTED IN THE HANDLE AND TERMINATING IN A RADIALLY ENLARGED PORTION HAVING AXIALLY EXTENDING MEMBERS FORMING RECESSES THEREBETWENE, A PLURALITY OF BALLS ONE LOCATED IN EACH OF SAID RECESSES, A STATIONARY BALL RACE SURROUNDING SAID SHAFT EXTENSIONS, SAID BALL RACE BEING FORMED TO BE CONTACTED BY SAID BALLS ALONG TWO CIRCULAR LINES OF CONTACT SPACED APART A DISTANCE LESS THAN THE DIAMETER OF SAID BALLS AND AN OUTPUT SPINDLE HAVING A CONICAL INNER END, SAID CONICAL END BEING CONTACTED BY SAID BALLS ALONG A CIRCULAR LINE OF CONTACT, SAID LINE OF CONTACT ON SAID BALLS BEING AT SUBSTANTIALLY THE DIAMETER OF THE BALLS, SAID RADIALLY ENLARGED SHAFT PORTIONS, SAID BALLS, SAID STATIONARY RACEWAY AND SAID CONICAL SPINDLE END CONSTITUTING A FRICTIONAL PLANETARY DRIVE, THE RATIO OF WHICH CAN BE MODIFIED BY ALTERING THE DIAMETERS OF SAID CIRCULAR LINE OF CONTACT OF SAID RACEWAY WITHOUT ALTERING THE RADIA DIMENSION OF THE HANDLE.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |