Patent US992780A successfully refreshed from Google Patents.
Patent US3224142A successfully refreshed from Google Patents.
US3224142A
Expired / Lapsed
US
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Top holding and spinning device with electric motor drive
Assignee: Individual
•
Filing: 1962-12-13
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Granted: 1965-12-21
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Expires: 1982-12-13
Abstract
No abstract record available.
Inventors
- 👤 Gustav J Pawelka
- 👤 Frederick H Kroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:51
CPC Classifications
A; A63; A63H; A63H1/00; A63H1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
THE COMBINATION OF A ROTATABLE TOP AND A TOP SPINNER COMPRISING, A CHUCK, AN ELECTRIC DRIVE MOTOR CONNECTED TO SAID CHUCK FOR ROTATING SAID CHUCK IN A PREDETERMINED FORWARD DIRECTION, MEANS RELEASABLY COUPLING SAID TOP TO SAID CHUCK FOR ROTATION THEREWITH AND RESPONSIVE TO THE FORWARD ROTATION OF SAID TOP RELATIVE TO SAID CHUCK TO EFFECT DISENGAGEMENT THEREOF, AN ELECTRIC BATTERY, MEANS INCLUDING A NORMALLY OPEN SWITCH CONNECTING SAID MOTOR TO SAID BATTERY, AND MEANS FOR SELECTIVELY BRAKING SAID CHUCK WHEREBY TO EFFECT THE FORWARD ROTATION OF SAID TOP RELATIVE TO SAID CHUCK AND THE RELEASE OF SAID TOP.
Claim 2
Dependent Claim
99 words
THE COMBINATION OF A ROTATABLE TOP AND A TOP SPINNER COMPRISING, A CHUCK, AN ELECTRIC DRIVE MOTOR CONNECTED TO SAID CHUCK FOR ROTATING SAID CHUCK IN A PREDETERMINED FORWARD DIRECTION, MEANS RELEASABLY COUPLING SAID TOP TO SAID CHUCK FOR ROTATION THEREWITH AND RESPONSIVE TO THE FORWARD ROTATION OF SAID TOP RELATIVE TO SAID CHUCK TO EFFECT DISENGAGEMENT THEREOF, AN ELECTRIC BATTERY, MEANS INCLUDING A NORMALLY OPEN SWITCH CONNECTING SAID MOTOR TO SAID BATTERY, AND MEANS FOR SELECTIVELY BRAKING SAID CHUCK WHEREBY TO EFFECT THE FORWARD ROTATION OF SAID TOP RELATIVE TO SAID CHUCK AND THE RELEASE OF SAID TOP.
References Cited (Backward Citations)
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |