Patent US3308658A successfully refreshed from Google Patents.
US3308658A
Expired / Lapsed
US
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Devices for detecting flaws in fabrics
Assignee: Individual
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Filing: 1964-03-10
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Granted: 1967-03-14
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Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 Bryan Leonard Thomas Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:53
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89; G01N21/8901; D; D06; D06H; D06H3/00; D06H3/08; G01N21/892; G01N21/898; G01N21/8983
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
APPARATUS FOR DETECTING FLAWS IN FABRICS COMPRISING PHOTO-ELECTRIC FLAW DETECTOR MEANS, DRIVE MEANS TO TRAVERSE SAID DETECTOR MEANS CONTINOUSLY TO AND FRO ACROSS THE WIDTH OF A MOVING WEB OF FABRIC TO SCAN THE FABRIC FOR FLAWS, SAID DETECTOR MEANS BEING SENSITIVE TO VARIATIONS IN LIGHT RECEIVED FROM THE FABRIC SO AS TO BE ACTUATED BY A CHANGE OF LIGHT RESULTING FROM A FLAW IN THE FABRIC AND, UPON DETECTION OF SUCH FLAW, PROVIDING A FLAW SIGNAL, AND ELECTRONIC CONTROL MEANS INSTANTLY RESPONSIVE TO SAID FLAW SIGNAL TO CAUSE IMMEDIATE REVERSAL OF THE DIRECTION OF TRAVERSE OF SAID DETECTOR MEANS TO RE-SCAN THE FLAW REGION MEANS COUNTING SAID FLAW SIGNALS; AND RESPONDER MEANS TO EFFECT AN ALARM UPON SAID COUNTING MEANS COUNTING A PREDETERMINED AND ADJUSTABLE NUMBER OF FLAW SIGNALS.
Claim 2
Dependent Claim
130 words
APPARATUS FOR DETECTING FLAWS IN FABRICS COMPRISING PHOTO-ELECTRIC FLAW DETECTOR MEANS, DRIVE MEANS TO TRAVERSE SAID DETECTOR MEANS CONTINOUSLY TO AND FRO ACROSS THE WIDTH OF A MOVING WEB OF FABRIC TO SCAN THE FABRIC FOR FLAWS, SAID DETECTOR MEANS BEING SENSITIVE TO VARIATIONS IN LIGHT RECEIVED FROM THE FABRIC SO AS TO BE ACTUATED BY A CHANGE OF LIGHT RESULTING FROM A FLAW IN THE FABRIC AND, UPON DETECTION OF SUCH FLAW, PROVIDING A FLAW SIGNAL, AND ELECTRONIC CONTROL MEANS INSTANTLY RESPONSIVE TO SAID FLAW SIGNAL TO CAUSE IMMEDIATE REVERSAL OF THE DIRECTION OF TRAVERSE OF SAID DETECTOR MEANS TO RE-SCAN THE FLAW REGION MEANS COUNTING SAID FLAW SIGNALS; AND RESPONDER MEANS TO EFFECT AN ALARM UPON SAID COUNTING MEANS COUNTING A PREDETERMINED AND ADJUSTABLE NUMBER OF FLAW SIGNALS.
References Cited (Backward Citations)
US2919624A
Cited
US3116621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |