No-slit hot rolling of railroad rails
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 27, 2015
Grant Date -
Aug 6, 2015
app pub date -
Apr 14, 2015
filing date -
Sep 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of recycling a one-piece rail having a base portion and a head portion spaced from each other by a substantially flat web portion. The steps include: heating the rail to a plastic state; feeding the heated rail through a first reduction pass to reduce a cross section of the rail without slitting the rail; feeding the bar through a second reduction pass in which the cross section of the bar is further modified; feeding the bar through a third reduction pass in which the cross section of the bar is further modified and then slitting the bar along the web portion into two bar pieces, one containing the former head portion and one containing the former base portion, as the bar leaves the third reduction pass; and rolling the two bar pieces through a series of reduction passes to produce a desired final cross section of the pieces.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- B21B Class
- 215 Applications Filed
- 155 Patents Issued To-Date
- 72.10 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B21B Class
- 0 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 27, 2027 |
