US3720852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for dampening oscillations in a midget motor
Assignee: Siemens AG
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Filing: 1971-03-30
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Granted: 1973-03-13
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Expires: 1991-03-30
Abstract
Abstract A MIDGET MOTOR COMPRISES A ROTOR, A STACK OF SLOTTED STATOR LAMINATIONS, THE ROTOR BEING OBLIQUELY INCLINED WITH RESPECT TO THE SLOTS OF THE STATOR, A STOP MEANS FOR THE ROTOR AND A BEARING MEANS BEARING AGAINST ONE END OF THE SHAFT OF THE ROTOR, THE STOP AND BEARING MEANS CONNECTED TO THE HOUSING OF THE MOTOR FOR ELASTIC MEMBERS FOR ISOLATING THE OSCILLATORY MOVEMENT OF THE ROTOR FROM THE HOUSING.
Inventors
- 👤 H Ott
- 👤 J Wenk
- 👤 G Vieweg
- 👤 F Kappius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:46
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/16; H02K21/00; H02K21/12; H02K21/14; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1672; H02K2201/00; H02K2201/06; H02K2205/00; H02K2205/03; H02K2213/00; H02K2213/09
Claims Analysis
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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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |