The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2019
Filed:
Nov. 16, 2015
Crrc Qingdao Sifang Co., Ltd., Qingdao, Shandong, CN;
Zhenxian Zhang, Shandong, CN;
Lijun Ma, Shandong, CN;
Xiaolong Zou, Shandong, CN;
Rongsheng Kuai, Shandong, CN;
Zhibo Zhang, Shandong, CN;
CRRC QINGDAO SIFANG CO., LTD., Qingdao, Shandong, CN;
Abstract
An anti-derailment safety device is in a shape of an inverted letter L and includes a transverse portion and a longitudinal portion perpendicular to the transverse portion at a side below the transverse portion; two sides of the transverse portion in a width direction of the transverse portion are each provided with an installation seat formed by a wing plate extending outwardly, and bolt holes are provided on the installation seat; and an inner side surface of the longitudinal portion is a stopping surface.