Patent US2124912A successfully refreshed from Google Patents.
US3148563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection of the arrival of material at a point in a rolling mill
Assignee: South African Iron & Steel
•
Filing: 1960-06-06
•
Granted: 1964-09-15
•
Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Harley John
- 👤 Zawels Jakob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:49
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/945; H03K17/95; H03K17/952; H03K17/9537; H03K17/9542; H03K17/9547; B; B21; B21B; B21B38/00; B23; B23D; B23D36/00; G; G01; G01V; G01V3/00; G01V3/02; B21B1/00; B21B1/16; B21B1/18; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/541
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF DETERMINING THE LOCATION OF AN ELECTRICALLY CONDUCTIVE METAL ELEMENT TRAVELING ALONG A ROLLING MILL BETWEEN TWO SPACED ROLLING STANDS OF THE MILL, COMPRISING THE STEPS OF COUPLING THE TWO ROLLING STANDS TO FORM PART OF AN ELECTRICAL CIRCUIT, PASSING THE METAL ELEMENT FROM THE FIRST ROLLING STAND TO THE SECOND ROLLING STAND FOR COMPLETING THE CIRCUIT AND INITIATING A FLOW OF CURRENT IN THE CIRCUIT, AND DETECTING THE CHANGE IN CONDITION OF THE CURRENT FLOW FROM NO CURRENT FLOW TO CURRENT FLOW.
Claim 2
Independent Claim
85 words
A METHOD OF DETERMINING THE LOCATION OF AN ELECTRICALLY CONDUCTIVE METAL ELEMENT TRAVELING ALONG A ROLLING MILL BETWEEN TWO SPACED ROLLING STANDS OF THE MILL, COMPRISING THE STEPS OF COUPLING THE TWO ROLLING STANDS TO FORM PART OF AN ELECTRICAL CIRCUIT, PASSING THE METAL ELEMENT FROM THE FIRST ROLLING STAND TO THE SECOND ROLLING STAND FOR COMPLETING THE CIRCUIT AND INITIATING A FLOW OF CURRENT IN THE CIRCUIT, AND DETECTING THE CHANGE IN CONDITION OF THE CURRENT FLOW FROM NO CURRENT FLOW TO CURRENT FLOW.
References Cited (Backward Citations)
US947744A
Cited
US2374652A
Cited
US2387478A
Cited
US2777519A
Cited
US2890750A
Cited
US3020788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |