Patent DE45271C successfully refreshed from Google Patents.
Patent US3333443A successfully refreshed from Google Patents.
US3333443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing machine
Assignee: Skinner Precision Industries Inc
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Filing: 1965-05-19
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Granted: 1967-08-01
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Expires: 1985-05-19
Abstract
No abstract record available.
Inventors
- 👤 Chung Kwangho
- 👤 Gerald A Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:36
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; D; D06; D06F; D06F34/00; D06F34/08; D06F37/00; D06F37/30; D06F37/304; D06F2105/00; D06F2105/46; D06F2105/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
AN ELECTROMAGNETIC DRIVE SYSTEM FOR A LAUNDRY TUB MOUNTED FOR ROTATION ON A FRAME COMPRISING A ROTOR SECURED TO SAID TUBE IN CONCENTRIC RELATION TO ITS AXIS OF ROTATION, A STATOR SECURED TO SAID FRAME IN ELECTROMAGNETIC DRIVING RELATION TO SAID ROTOR, MEANS FOR CONNECTING SAID STATOR TO A SOURCE OF ALTERNATING CURRENT, MEANS FOR PERIODICALLY REVERSING THE DIRECTION IN WHICH SAID ROTOR IS DRIVEN BY SAID STATOR, A HUB RING ROTATABLY SUPPORTED BY SAID FRAME IN CONCENTRIC RELATION TO SAID AXIS, FIRST STOP MEANS ON SAID FRAME ENGAGEABLE WITH SECOND STOP MEANS ON SAID HUB RING FOR LIMITING THE ARC OF MOVEMENT OF SAID HUB RING, AND SAID HUB RING BEING AXIALLY MOVABLE BETWEEN A FIRST POSITION AND A SECOND POSITION, THIRD STOP MEANS ON SAID HUB RING ENGAGEABLE WITH FOURTH STOP MEANS ON SAID ROTOR ONLY WHEN SAID HUB RING IS IN SAID FIRST POSITION, AND CONTROL MEANS FOR SHIFTING SAID HUB RING BETWEEN SAID FIRST AND SECOND POSITIONS, WHEREBY SAID THIRD STOP MEANS MAY BE DISENGAGED TO PERMIT SAID TUB TO ROTATE FREELY OR POSITIONED FOR ENGAGEMENT WITH SAID FOURTH STOP MEANS TO LIMIT THE ARC OF MOVEMENT OF SAID TUB.
Claim 2
Dependent Claim
194 words
AN ELECTROMAGNETIC DRIVE SYSTEM FOR A LAUNDRY TUB MOUNTED FOR ROTATION ON A FRAME COMPRISING A ROTOR SECURED TO SAID TUBE IN CONCENTRIC RELATION TO ITS AXIS OF ROTATION, A STATOR SECURED TO SAID FRAME IN ELECTROMAGNETIC DRIVING RELATION TO SAID ROTOR, MEANS FOR CONNECTING SAID STATOR TO A SOURCE OF ALTERNATING CURRENT, MEANS FOR PERIODICALLY REVERSING THE DIRECTION IN WHICH SAID ROTOR IS DRIVEN BY SAID STATOR, A HUB RING ROTATABLY SUPPORTED BY SAID FRAME IN CONCENTRIC RELATION TO SAID AXIS, FIRST STOP MEANS ON SAID FRAME ENGAGEABLE WITH SECOND STOP MEANS ON SAID HUB RING FOR LIMITING THE ARC OF MOVEMENT OF SAID HUB RING, AND SAID HUB RING BEING AXIALLY MOVABLE BETWEEN A FIRST POSITION AND A SECOND POSITION, THIRD STOP MEANS ON SAID HUB RING ENGAGEABLE WITH FOURTH STOP MEANS ON SAID ROTOR ONLY WHEN SAID HUB RING IS IN SAID FIRST POSITION, AND CONTROL MEANS FOR SHIFTING SAID HUB RING BETWEEN SAID FIRST AND SECOND POSITIONS, WHEREBY SAID THIRD STOP MEANS MAY BE DISENGAGED TO PERMIT SAID TUB TO ROTATE FREELY OR POSITIONED FOR ENGAGEMENT WITH SAID FOURTH STOP MEANS TO LIMIT THE ARC OF MOVEMENT OF SAID TUB.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |