|국가/구분||United States(US) Patent 등록|
|우선권정보||CN-2005-005 1 0044128(2005-07-21)|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 13 인용 특허 : 0|
A wholly wrapped railroad crosstie comprises an inner core and an outer casing that is made of deformable composite materials. The outer casing is molten and integrally united with and attached to the inner core as a whole when it is formed. The outer casing completely covers the inner core. There's no seam on the crosstie at all. So it successfully avoids the separation and friction of the crosstie. It greatly increases the reliability and service life of the crosstie, and reduces the cost of maintenance.
The invention claimed is: 1. A wholly wrapped railroad crosstie comprising an inner core and an outer casing covering said inner core, said outer casing being made of composite materials, wherein said outer casing entirely wraps around said inner core and said outer casing when molten is attached to said inner core to form an integrated crosstie during a forming process,wherein the outer casing is without a seam;wherein there is no space between the outer casing and the inner core; andwherein said inner core comprises a supporting framework and reinforci...