US3280692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the defective surface area of an object
Assignee: United States Steel Corp
•
Filing: 1960-12-21
•
Granted: 1966-10-25
•
Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 James A Milnes
- 👤 William L Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
APPARATUS FOR MEASURING THE DEFECTIVE AREA OF THE SURFACE OF A MOVING OBJECT COMPRISING MEANS FOR ILLUMINATING SAID MOVING OBJECT, SIGNAL GENERATING MEANS RESPONSIVE TO LIGHT REFLECTED FROM SAID OBJECT, SCANNING MEANS FOR CAUSING SAID SIGNAL GENERATING MEANS TO TRAVERSE THE WIDTH OF THE OBJECT AT A CONTROLLED SPEED SO THAT A SIGNAL IS DEVELOPED IN SAID SIGNAL GENERATING MEANS HAVING A DURATION PROPORTIONAL TO THE LENGTH OF THE DEFECTIVE AREA ALONG A LINE SUBSTANTIALLY TRANVERSE TO THE DIRECTION OF MOVEMENT OF THE OBJECT, MEANS PROPORTIONAL TO THE SPEED OF THE OBJECT FOR CAUSING SAID SCANNING MEANS TO REPETITIVELY SWEEP SAID SIGNAL GENERATING MEANS ACROSS SAID MOVING OBJECT AT A CONTROLLED RATE, MEANS RESPON-
Claim 2
Dependent Claim
114 words
APPARATUS FOR MEASURING THE DEFECTIVE AREA OF THE SURFACE OF A MOVING OBJECT COMPRISING MEANS FOR ILLUMINATING SAID MOVING OBJECT, SIGNAL GENERATING MEANS RESPONSIVE TO LIGHT REFLECTED FROM SAID OBJECT, SCANNING MEANS FOR CAUSING SAID SIGNAL GENERATING MEANS TO TRAVERSE THE WIDTH OF THE OBJECT AT A CONTROLLED SPEED SO THAT A SIGNAL IS DEVELOPED IN SAID SIGNAL GENERATING MEANS HAVING A DURATION PROPORTIONAL TO THE LENGTH OF THE DEFECTIVE AREA ALONG A LINE SUBSTANTIALLY TRANVERSE TO THE DIRECTION OF MOVEMENT OF THE OBJECT, MEANS PROPORTIONAL TO THE SPEED OF THE OBJECT FOR CAUSING SAID SCANNING MEANS TO REPETITIVELY SWEEP SAID SIGNAL GENERATING MEANS ACROSS SAID MOVING OBJECT AT A CONTROLLED RATE, MEANS RESPON-
References Cited (Backward Citations)
US2674915A
Cited
GB708347A
Cited
US2818467A
Cited
US2934824A
Cited
US3020033A
Cited
US3020034A
Cited
US3035478A
Cited
US3096443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |