Title:
再生ゴム製鉄道用枕木
Document Type and Number:
Japanese Patent JP4078075
Kind Code:
B2
Abstract:
A method for the manufacture of a railroad crosstie (90) from recycled rubber is disclosed. The rubber crosstie (90) has an expected life of between 30 to 60 years and can be made primarily of rubber crumbs obtained from stockpiles of discarded rubber tires. A feature of the invention is to produce a crosstie (90) having at least one longitudinal side incorporating a plurality of indentations for more effective engagement upon installation into a gravel bed to avoid slippage.
Inventors:
Hansen, Stephen, M.
Application Number:
JP2001584647A
Publication Date:
April 23, 2008
Filing Date:
May 11, 2001
Export Citation:
Assignee:
Hansen Rubber Products, Incorporated
International Classes:
E01B3/44; B29B17/00; B29C48/06; B29C48/13; B29D99/00; C08J3/20; C08J11/06; C08L19/00; C08L21/00; B29C48/00; B29C48/12; C08L7/00; C08L17/00; C08L101/00
Foreign References:
| US5104039 |
Attorney, Agent or Firm:
Yukio Ono
Yoshio Miyagawa
Hidetada Kato
Yamashita
Yoshio Miyagawa
Hidetada Kato
Yamashita