US3158767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric spinning-pot motor
Assignee: Siemens Schuckertwerke AG
•
Filing: 1961-05-09
•
Granted: 1964-11-24
•
Expires: 1981-05-09
Abstract
No abstract record available.
Inventors
- 👤 Schoning Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:31
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
ELECTRIC SPINNING-POT MOTOR COMPRISING A VERTICAL HOLLOW ROTOR SHAFT, AN INNER SHAFT EXTENDING WITH RADIAL CLEARANCE THROUGH SAID HOLLOW SHAFT AND HAVING AN UPPER PORTION PROTRUDING UPWARDLY FROM SAID HOLLOW SHAFT FOR SUPPORTING A SPINNING-POT, SAID INNER SHAFT BEING DISPLACEABLE IN NON-PERIPHERAL DIRECTIONS RELATIVE TO SAID HOLLOW SHAFT, AN AXIALLY ELONGATED HELICAL SPRING SURROUNDING SAID INNER SHAFT WITHIN SAID HOLLOW SHAFT, SAID SPRING HAVING ITS ENDS TORQUE-TRANSMITTINGLY JOINED WITH SAID HOLLOW SHAFT AT RESPECTIVE LOCATIONS AXIALLY SPACED FROM EACH OTHER, SAID SPRING HAVING A MIDDLE PORTION TORQUE-TRANSMITTINGLY JOINED WITH SAID INNER SHAFT AND BEING LATERALLY BENDABLE BETWEEN SAID TWO LOCATIONS, WHEREBY SAID SPRING FORMS AN ELASTIC CENTERING MEANS FOR SAID INNER SHAFT AS WELL AS A COUPLING FOR TRANSMITTING TORQUE TO SAID INNER SHAFT.
Claim 2
Dependent Claim
124 words
ELECTRIC SPINNING-POT MOTOR COMPRISING A VERTICAL HOLLOW ROTOR SHAFT, AN INNER SHAFT EXTENDING WITH RADIAL CLEARANCE THROUGH SAID HOLLOW SHAFT AND HAVING AN UPPER PORTION PROTRUDING UPWARDLY FROM SAID HOLLOW SHAFT FOR SUPPORTING A SPINNING-POT, SAID INNER SHAFT BEING DISPLACEABLE IN NON-PERIPHERAL DIRECTIONS RELATIVE TO SAID HOLLOW SHAFT, AN AXIALLY ELONGATED HELICAL SPRING SURROUNDING SAID INNER SHAFT WITHIN SAID HOLLOW SHAFT, SAID SPRING HAVING ITS ENDS TORQUE-TRANSMITTINGLY JOINED WITH SAID HOLLOW SHAFT AT RESPECTIVE LOCATIONS AXIALLY SPACED FROM EACH OTHER, SAID SPRING HAVING A MIDDLE PORTION TORQUE-TRANSMITTINGLY JOINED WITH SAID INNER SHAFT AND BEING LATERALLY BENDABLE BETWEEN SAID TWO LOCATIONS, WHEREBY SAID SPRING FORMS AN ELASTIC CENTERING MEANS FOR SAID INNER SHAFT AS WELL AS A COUPLING FOR TRANSMITTING TORQUE TO SAID INNER SHAFT.
References Cited (Backward Citations)
US2734359A
Cited
FR949719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |