US4428217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side guides for rolling steel rods
Assignee: JFE Steel Corp
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Filing: 1982-05-13
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Granted: 1984-01-31
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Expires: 2002-05-13
Abstract
Abstract Side guides for rolling steel rods comprise front and rear rolling guide frames consisting of partitions abuttingly connected to each other in a gap between a pair of rolls having cylindrical surface barrels to form defined rolling zones which are side by side along the roll barrels and divided by the partitions and capable of retaining steel rods being rolled, thereby effectively carrying out rolling of steel rods with grooveless rolls without using calibers without twisting and deforming the steel rods into incorrect cross-sections.
Inventors
- 👤 Tadaaki Yanazawa
- 👤 Teruaki Tanaka
- 👤 Akio Noda
- 👤 Takashi Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:25
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/16; B21B1/163; B21B39/00; B21B39/14; B21B39/16; B21B39/165
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
Side guides for rolling steel rods comprising front and rear rolling guide frames abuttingly combined with each other in a gap between a pair of grooveless rolling rolls having cylindrical surface barrels to embrace said pair of rolls on front and rear sides thereof so as to form defined rolling zones which are side by side in an axial direction of said rolls and divided by said rolling guide frames, said front and rear rolling guide frames being adjustable in the axial direction of said rolls, and the outermost rolling guide frames being provided on outsides of their abutting ends with connecting means.
Claim 2
Dependent Claim
103 words
Side guides for rolling steel rods comprising front and rear rolling guide frames abuttingly combined with each other in a gap between a pair of grooveless rolling rolls having cylindrical surface barrels to embrace said pair of rolls on front and rear sides thereof so as to form defined rolling zones which are side by side in an axial direction of said rolls and divided by said rolling guide frames, said front and rear rolling guide frames being adjustable in the axial direction of said rolls, and the outermost rolling guide frames being provided on outsides of their abutting ends with connecting means.
Claim 3
Dependent Claim
30 words
Side guides as set forth in claim 1, wherein fitting connecting means are provided in the abutting ends of partitions of said rolling guide frames forming said defined rolling zones.
Claim 4
Dependent Claim
21 words
Side guides as set forth in claim 1, or 2, wherein said defined rolling zones have widths different from one another.
Claim 5
Dependent Claim
35 words
Side guides as set forth in claim 1, 2 or 3, wherein substantially half of said defined rolling zones on roughing rolling side and remaining half of said defined rolling zones are different in height.
Claim 6
Dependent Claim
47 words
Side guides as set forth in claim 4, wherein said defined rolling zones higher in height are uniform in width on front and rear rolling sides and said defined rolling zones lower in height are wider on the rear rolling sides than on the front rolling sides.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |