US2816052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing ribbed steel rods
Assignee: HOESCH WESTFALENHUTTE AG
•
Filing: 1954-11-08
•
Granted: 1957-12-10
•
Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 Hoff Hubert
- 👤 Fischer Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:47
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; E04C5/02; E04C5/03; B; B21; B21B; B21B1/00; B21B1/16; B21B1/163; B21D; B21D11/00; B21D11/14; B21D11/15; B21H; B21H3/00; C; C07; C07C; C07C51/00; C07C51/41; C07C51/416; C21; C21D; C21D8/00; C21D8/06; C21D8/08; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD OF MANUFACTURING RIBBED STEEL RODS FOR REINFORCING CONCRETE COMPRISING THE STEPS OF COLD-ROLLING A STEEL ROD CONSISTING OF THOMAS STEEL AND DEFORMING THE SAME SO AS TO REDUCE ITS DIMENSION IN ONE CROSS-SECTIONAL DIRECTION BY AT LEAST 40%; THEREAFTER TEMPERING SAID COLDROLLED DEFORMED STEEL ROD AT A TEMPERATURE RANGING BETWEEN 450* AND 600* CENTIGRADE FOR AT LEAST 15 MINUTES, AND FORMING RIBS ON SAID STEEL ROD NOT LESS THAN 15 MINUTES BEFORE TERMINATION OF SAID TEMPERING SO THAT SAID COLDROLLED DEFORMED STEEL ROD WITH SAID RIBS THEREON IS TEMPERED FOR AT LEAST 15 MINUTES AT THE INDICATED TEMPERATURE, WHEREBY A RIBBED STEEL ROD OF HIGH ELASTIC LIMIT AND HIGH NOTCH IMPACT TENACITY IS FORMED.
Claim 2
Independent Claim
116 words
A METHOD OF MANUFACTURING RIBBED STEEL RODS FOR REINFORCING CONCRETE COMPRISING THE STEPS OF COLD-ROLLING A STEEL ROD CONSISTING OF THOMAS STEEL AND DEFORMING THE SAME SO AS TO REDUCE ITS DIMENSION IN ONE CROSS-SECTIONAL DIRECTION BY AT LEAST 40%; THEREAFTER TEMPERING SAID COLDROLLED DEFORMED STEEL ROD AT A TEMPERATURE RANGING BETWEEN 450* AND 600* CENTIGRADE FOR AT LEAST 15 MINUTES, AND FORMING RIBS ON SAID STEEL ROD NOT LESS THAN 15 MINUTES BEFORE TERMINATION OF SAID TEMPERING SO THAT SAID COLDROLLED DEFORMED STEEL ROD WITH SAID RIBS THEREON IS TEMPERED FOR AT LEAST 15 MINUTES AT THE INDICATED TEMPERATURE, WHEREBY A RIBBED STEEL ROD OF HIGH ELASTIC LIMIT AND HIGH NOTCH IMPACT TENACITY IS FORMED.
References Cited (Backward Citations)
GB644598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |