Rolling bending method and rolling bending apparatus
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United States of America Patent
Stats
-
Jan 19, 2021
Grant Date -
Oct 4, 2018
app pub date -
Dec 15, 2017
filing date -
Apr 3, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A steel strip is fed and compressed between a driving roller and a compression roller to generate a stress greater than a yield stress in the steel strip and to elongate one periphery portion of the steel strip, which is on one side, more than the other periphery portion of the steel strip, which is on the other side, in a sending direction. The compression roller includes a first contact portion and a second contact portion. The second contact portion extends from an end of the first contact portion in the axial direction of the compression roller. The end of the first contact portion has an outer diameter less than an outer diameter of the second contact portion.
First Claim
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Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B21D Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 19, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 19, 2032 |
