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:
Feb. 28, 2023
Filed:
Oct. 30, 2020
Otis Elevator Company, Farmington, CT (US);
Zhiren Liu, Shanghai, CN;
JinKoo Lee, Yongin-si, KR;
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
A linkage device used between an elevator car door and a hall door, and an elevator system. The linkage device includes: a link mechanism; a first door vane and a second door vane that are connected to the link mechanism; and an actuating mechanism for actuating the link mechanism so that the first door vane and the second door vane are switched between a contracted position and an expanded position; wherein the link mechanism includes: a first link and a second link arranged in parallel, each of which includes a link body and a slider; the link body of the first link and the link body of the second link are pivotally connected to the car door, and the slider of the first link and the slider of the second link are each capable of sliding along a passage defined by the corresponding link body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile