Patent US3224289A successfully refreshed from Google Patents.
US3224289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorized head pulley
Assignee: Electra Motors Inc
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Filing: 1962-12-03
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Granted: 1965-12-21
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Bernhard N Palm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:32
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/1004; H02K7/1012; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN INTERNALLY DRIVEN PULLEY COMPRISING THE COMBINATION OF A PRIME MOVER HAVING AN EXTERNAL CASING WITH END WALLS AND AN AXIALLY EXTENDING DRIVING SHAFT PROJECTING THROUGH ONE END WALL, A TRUNNION RIGIDLY CONNECTED TO AND PROJECTING AXIALLY FROM THE OTHER END WALL OF THE PRIME MOVER CASING, A HOLLOW CASING EXTENSION HAVING A GENERALLY TUBULAR WALL RIGIDLY AND SEALINGLY SECURED AT ONE TUBULAR END TO SAID ONE END OF THE PRIME MOVER CASING AND PROJECTING AXIALLY FROM THAT END OF THE PRIME MOVER CASING, SAID TUBULAR WALL BEING EFFECTIVELY IMPERFORATE, A PERFORATE END FORMATION RIGIDLY ATTACHED TO AND EXTENDING ACROSS THE AXIAL END PORTION OF SAID TUBULAR WALL THAT IS REMOTE FROM THE PRIME MOVER CASING, A SECOND TRUNNION RIGIDLY SECURED TO SAID PERFORATE END FORMATION AND EXTENDING AXIALLY THEREFROM ON AN AXIS COMMON TO THE AXIS OF THE FIRST MENTIONED TRUNNION, AT LEAST ONE OF SAID TRUNNIONS ADAPTED TO BE HELD STATIONARILY,
Claim 2
Dependent Claim
153 words
AN INTERNALLY DRIVEN PULLEY COMPRISING THE COMBINATION OF A PRIME MOVER HAVING AN EXTERNAL CASING WITH END WALLS AND AN AXIALLY EXTENDING DRIVING SHAFT PROJECTING THROUGH ONE END WALL, A TRUNNION RIGIDLY CONNECTED TO AND PROJECTING AXIALLY FROM THE OTHER END WALL OF THE PRIME MOVER CASING, A HOLLOW CASING EXTENSION HAVING A GENERALLY TUBULAR WALL RIGIDLY AND SEALINGLY SECURED AT ONE TUBULAR END TO SAID ONE END OF THE PRIME MOVER CASING AND PROJECTING AXIALLY FROM THAT END OF THE PRIME MOVER CASING, SAID TUBULAR WALL BEING EFFECTIVELY IMPERFORATE, A PERFORATE END FORMATION RIGIDLY ATTACHED TO AND EXTENDING ACROSS THE AXIAL END PORTION OF SAID TUBULAR WALL THAT IS REMOTE FROM THE PRIME MOVER CASING, A SECOND TRUNNION RIGIDLY SECURED TO SAID PERFORATE END FORMATION AND EXTENDING AXIALLY THEREFROM ON AN AXIS COMMON TO THE AXIS OF THE FIRST MENTIONED TRUNNION, AT LEAST ONE OF SAID TRUNNIONS ADAPTED TO BE HELD STATIONARILY,
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) | 1968-12-20 | 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 |