US3194286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screwdriver with registering chamber magazine handle
Assignee: Individual
•
Filing: 1962-03-29
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Granted: 1965-07-13
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 William F Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:22
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/08; B25G1/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SCREWDRIVER COMPRISING A TUBULAR HANDLE HAVING AN ENLARGED LONGITUDINAL DUCT THEREIN, A CYLINDER, MEANS ROTATABLY MOUNTING THE CYLINDER IN THE HANDLE, SAID CYLINDER HAVING A PLURALITY OF CHAMBERS THEREIN SELECTIVELY REGISTERABLE WITH A FIRST END OF THE DUCT UPON ROTATION OF THE CYLINDER, MEANS FOR ACTUATING THE CYLINDER, BITS MOUNTED IN THE CHAMBERS, AND A CHUCK ON ONE END OF THE HANDLE, SAID CHUCK HAVING A BORE THEREIN COMMUNICATING WITH THE OPPOSITE END OF THE DUCT FOR SLIDABLY RECEIVING THE BITS BY GRAVITY THERETHROUGH FROM THE CHAMBERS, SAID BORE HAVING A SUBSTANTIALLY CIRCULAR CROSS-SECTION SMALLER IN DIAMETER THAN SAID DUCT, SAID BORE ALSO HAVING AN ENLARGED UPPER END, SAID UPPER END BEING SQUARE IN CROSS-SECTION AND HAVING A SMALLER CROSS-SECTIONAL AREA THAN THE DUCT, SAID BITS BEING SUBSTANTIALLY CIRCULAR IN CROSS-SECTION AND SELECTIVELY RECEIVABLE THROUGH SAID BORE, THE UPPER END PORTION OF EACH BIT BEING SQUARE
Claim 2
Dependent Claim
147 words
A SCREWDRIVER COMPRISING A TUBULAR HANDLE HAVING AN ENLARGED LONGITUDINAL DUCT THEREIN, A CYLINDER, MEANS ROTATABLY MOUNTING THE CYLINDER IN THE HANDLE, SAID CYLINDER HAVING A PLURALITY OF CHAMBERS THEREIN SELECTIVELY REGISTERABLE WITH A FIRST END OF THE DUCT UPON ROTATION OF THE CYLINDER, MEANS FOR ACTUATING THE CYLINDER, BITS MOUNTED IN THE CHAMBERS, AND A CHUCK ON ONE END OF THE HANDLE, SAID CHUCK HAVING A BORE THEREIN COMMUNICATING WITH THE OPPOSITE END OF THE DUCT FOR SLIDABLY RECEIVING THE BITS BY GRAVITY THERETHROUGH FROM THE CHAMBERS, SAID BORE HAVING A SUBSTANTIALLY CIRCULAR CROSS-SECTION SMALLER IN DIAMETER THAN SAID DUCT, SAID BORE ALSO HAVING AN ENLARGED UPPER END, SAID UPPER END BEING SQUARE IN CROSS-SECTION AND HAVING A SMALLER CROSS-SECTIONAL AREA THAN THE DUCT, SAID BITS BEING SUBSTANTIALLY CIRCULAR IN CROSS-SECTION AND SELECTIVELY RECEIVABLE THROUGH SAID BORE, THE UPPER END PORTION OF EACH BIT BEING SQUARE
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |