Patent US3555442A successfully refreshed from Google Patents.
Patent US3564870A successfully refreshed from Google Patents.
US3564870A
Expired / Lapsed
US
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Electromagnetic actuator for a circular knitting machine
Assignee: Individual
•
Filing: 1969-06-19
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Granted: 1971-02-23
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Expires: 1989-06-19
Abstract
Abstract AN IMPROVED ELECTROMAGNETIC ACTUATOR FOR THE JACKS OF A CIRCULAR KNITTING MACHINE EMPLOYS A LOW-MASS COIL AS THE MOVABLE ELEMENT IN PLACE OF A RELATIVELY MASSIVE CORE TO MINIMIZE INERTIA AND MAXIMIZE SWITCHING SPEED. THE COIL IS COUPLED TO A LOW-MASS PUSH ROD TO MOVE ONE OF A PLURALITY OF THE JACKS INTO KNITTING POSITION IN RESPONSE TO AN OUTPUT SIGNAL COUPLED TO THE COIL FROM A PATTERN CONTROL MECHANISM.
Inventors
- 👤 Heinz Glaunsinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:17
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/66; D04B15/68; D04B15/78; H; H01; H01F; H01F7/00; H01F7/06; H01F7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |