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:
Apr. 02, 2019
Filed:
Dec. 29, 2014
Otis Elevator Company, Farmington, CT (US);
YuHang Ou, Hangzhou, CN;
ChunYan Yu, Hangzhou, CN;
WeiHua Yuan, Hangzhou, CN;
Jing Nie, Hangzhou, CN;
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
The present invention relates to a rust removing device for an elevator guide rail and aims at solving a problem of great time and labor taken and insufficient rust removal due to that rust of existing guide rail is removed manually. The rust removing device comprises: a support; a rust removal rack, mounted on the support and covering guide rail; and a rust removal material, arranged on a U-shaped inner wall of the rust removal rack and fitted with a surface of the guide rail. The rust removing device of the present invention has advantages that the rust of the guide rail is removed automatically instead of being removed manually, featured by a high rust removing speed, energy saving, simple maintenance, and less influence on users due to long-time service stop because of rust removal.