US3334448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle lock for a power tool
Assignee: Rockwell Manufacturing Co
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Filing: 1964-03-20
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Granted: 1967-08-08
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert H Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:51
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/02; B24B23/022; B24B55/00; B24B55/04; B24B55/05; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7793
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
A PORTABLE POWER TOOL ADAPTED TO BE SUPPORTED BY THE HANDS, SAID TOOL COMPRISING A HOUSING HAVING A MOTOR CONTAINED THEREIN, A SPINDLE ROTATABLY MOUNTED WITHIN SAID HOUSING AND PROJECTING THEREFROM, WASHER MEANS MOUNTED IN FIXED POSITION ON SAID SPINDLE FOR DEFINING A FLAT SURFACE ROTATABLE WITH SAID SPINDLE, A GENERALLY ANNULAR SHAPED STOP LEVER PIVOTALLY MOUNTED ON SAID HOUSING AND POSITIONED SUBSTANTIALLY TRANSVERSE TO SAID SPINDLE AND ADJACENT SAID WASHER MEANS, SAID STOP LEVER INCLUDING A FLAT SURFACE ENGAGEABLE WITH SAID FLAT SURFACE ON SAID WASHER MEANS WHEN SAID STOP LEVER IS PIVOTED, SPRING MEANS NORMALLY URGING SAID STOP LEVER OUT OF ENGAGEMENT WITH SAID WASHER MEANS, AND A TAB EXTENDING OUTWARDLY FROM SAID STOP LEVER FOR PIVOTING SAID STOP LEVER INTO ENGAGEMENT WITH SAID WASHER MEANS BY ONE OF THE HANDS SUPPORTING THE POWER TOOL.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |