US3623310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic charge sensitive ends down detecting apparatus and method
Assignee: Parks Cramer Co
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Filing: 1970-05-25
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Granted: 1971-11-30
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Expires: 1990-05-25
Abstract
Abstract AN APPARATUS AND METHOD FOR DETECTING AND REGISTERING THE EXISTENCE OF ENDS DOWN ON A TEXTILE YARN FORMING MACHINE SUCH AS A SPINNING MACHINE WHEREIN A DETECTOR MOUNTED ON AND MOVABLE WITH A TRAVELING MACHINE TENDER SCANS ELEMENTS WHICH ARE ELECTROSTICALLY CHARGED BY THE FORMATION OF ENDS OF YARN, THE DETECTOR MEANS BEING RESPONSIVE TO VARIATINS IN ELECTROSTATIC CHARGES AND SENSING SUCH CHARGES AS INDICATIVE OF THE ABSENCE AND PRESENCE OF YARNS FORMED BY THE MACHINE.
Inventors
- 👤 William L Mulligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:14
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/14; D01H13/145
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |