Patent US3187568A successfully refreshed from Google Patents.
US3187568A
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Filament fault detector
Assignee: Akzona Inc
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Filing: 1961-03-13
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Granted: 1965-06-08
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Gonsalves Victor Emanuel
- 👤 Hilferink Garrit Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:38
CPC Classifications
B; B65; B65H; B65H63/00; B65H63/06; B65H63/062; B65H63/064; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
APPARATUS FOR INDICATING IRREGULARITIES IN TRAVELLING TEXTILE MATERIAL COMPRISING MEANS FOR CONVEYING AND GUIDING A TEXTILE MATERIAL ALONG A FIXED WHEREBY AN ELECTROSTATIC CHARGE IS PLACED THEREON, A SCANNING DEVICE SUPPORTED ALONGSIDE THE PATH OF MOVING TEXTILE MATERIAL, SAID SCANNING DEVICE INCLUDING AN INSULATING MEMBER AND AT LEAST TWO CONDUCTORS COILED HELICALLY ABOUT SAID MEMBER WHEREBY THE ELECTROSTATIC CHARGE PRODUCED BY AN IRREGULARITY IN THE TEXTILE MATERIAL MAY BE INDUCED THEREIN, AN ELECTRONIC AMPLIFIER CONNECTED TO EACH OF SAID COILED CONDUCTORS TO RECEIVE THE ELECTROSTATIC CHARGE PRODUCED BY SUCH IRREGULARITY, MEANS FOR ELECTRONICALLY DIFFERENTIATING THE OUTPUTS OF SAID AMPLIFIERS TO PRODUCE A RESULTING SIGNAL AND ELECTRONIC MEANS RECEIVING AND RESULTING SIGNAL TO INDICATE THE PRESENCE OF SUCH IRREGULARITIES IN THE TEXTILE MATERIAL.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |