US3159170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web edge control device
Assignee: APPLIED ENGINEERING Corp
•
Filing: 1961-07-06
•
Granted: 1964-12-01
•
Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 John G Callan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:39
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/0212; Y; Y10; Y10T; Y10T137/00; Y10T137/2278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PNEUMATIC EDGE-SENSING DEVICE FOR DETECTING THE POSITION OF THE MARGIN OF A WEB OR SHEET, COMPRISING A JET NOZZLE HAVING A DISCHARGE PASSAGE DISPOSED IN A DIRECTION GENERALLY PERPENDICULAR TO THE PLANE OF THE WEB IN THE VICINITY OF THE MARGIN THEREOF, A SENSOR NOZZLE DISPOSED IN SPACED OPPOSED RELATION TO THE JET NOZZLE, A RESILIENT FLAPPER DISPOSED BETWEEN THE NOZZLES IN CLOSE PROXIMITY TO THE SENSOR NOZZLE AND RESPONSIVE TO THE IMPINGE-
Claim 2
Dependent Claim
74 words
A PNEUMATIC EDGE-SENSING DEVICE FOR DETECTING THE POSITION OF THE MARGIN OF A WEB OR SHEET, COMPRISING A JET NOZZLE HAVING A DISCHARGE PASSAGE DISPOSED IN A DIRECTION GENERALLY PERPENDICULAR TO THE PLANE OF THE WEB IN THE VICINITY OF THE MARGIN THEREOF, A SENSOR NOZZLE DISPOSED IN SPACED OPPOSED RELATION TO THE JET NOZZLE, A RESILIENT FLAPPER DISPOSED BETWEEN THE NOZZLES IN CLOSE PROXIMITY TO THE SENSOR NOZZLE AND RESPONSIVE TO THE IMPINGE-
References Cited (Backward Citations)
US2539131A
Cited
US2814487A
Cited
US2813535A
Cited
US3015317A
Cited
US2944558A
Cited
US3012575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |