Patent US3345835A successfully refreshed from Google Patents.
US3345835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retro-reflective stop motion system
Assignee: Appalachian Electronic Instruments Inc
•
Filing: 1964-12-11
•
Granted: 1967-10-10
•
Expires: 1984-12-11
Abstract
No abstract record available.
Inventors
- 👤 Nickell Lawrence Creigh
- 👤 Fertig Raymond Baines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:36
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89; G01N21/8901; D; D03; D03J; D03J1/00; D04; D04B; D04B35/00; D04B35/10; D04B35/20; D06; D06H; D06H3/00; D06H3/08; D03J2700/00; D03J2700/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
FABRIC FLAW DETECTING APPARATUS FOR DETECTING HOLES AND LIKE SELECTED APERTURE CONDITIONS IN KNIT FRABRIC WHILE THE FABRIC IS MOVING RELATIVE TO A FABRIC HANDLING MACHINE AND PRODUCING DEFECT SIGNALS UPON OCCURRENCE OF SUCH APERTURE DEFECTS COMPRISING A DETECTOR HEAD INCLUDING A SUBSTANTIALLY POINT SOURCE OF LIGHT, OPTICAL LENS MEANS FOR CONCURRENTLY DIRECTING LIGHT RAYS FROM SAID SOURCE ALONG A PLURALITY OF SELECTED DIVERSE INCIDENT RAY PATHS TO COLLECTIVELY AND SIMULTANEOUSLY FORM AN ELONGATED IMAGE OF LIGHT AT THE FABRIC TO BE INSPECTED, RETRO-REFLECTIVE MEANS DISPOSED ON THE OPPOSITE SIDE OF SAID FABRIC FROM SAID DETECTOR HEAD POSITIONED TO RECEIVE LIGHT FROM SAID SOURCE
Claim 2
Dependent Claim
104 words
FABRIC FLAW DETECTING APPARATUS FOR DETECTING HOLES AND LIKE SELECTED APERTURE CONDITIONS IN KNIT FRABRIC WHILE THE FABRIC IS MOVING RELATIVE TO A FABRIC HANDLING MACHINE AND PRODUCING DEFECT SIGNALS UPON OCCURRENCE OF SUCH APERTURE DEFECTS COMPRISING A DETECTOR HEAD INCLUDING A SUBSTANTIALLY POINT SOURCE OF LIGHT, OPTICAL LENS MEANS FOR CONCURRENTLY DIRECTING LIGHT RAYS FROM SAID SOURCE ALONG A PLURALITY OF SELECTED DIVERSE INCIDENT RAY PATHS TO COLLECTIVELY AND SIMULTANEOUSLY FORM AN ELONGATED IMAGE OF LIGHT AT THE FABRIC TO BE INSPECTED, RETRO-REFLECTIVE MEANS DISPOSED ON THE OPPOSITE SIDE OF SAID FABRIC FROM SAID DETECTOR HEAD POSITIONED TO RECEIVE LIGHT FROM SAID SOURCE
References Cited (Backward Citations)
US2611097A
Cited
US2694305A
Cited
US2944463A
Cited
US2878589A
Cited
US2859603A
Cited
US3056032A
Cited
US3065615A
Cited
US3055200A
Cited
US3116621A
Cited
US3230305A
Cited
US3198951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |