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:
Aug. 25, 2026
Filed:
Nov. 26, 2024
Otis Elevator Company, Farmington, CT (US);
Luis Martí Sánchez, Madrid, ES;
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
An elevator safety device comprises a housing attachable to an elevator car or to an elevator counterweight of an elevator system, the housing comprising a passage for allowing a guide member to pass through. A brake shoe is attached to the housing and is located on a first side of the guide member passing through the passage. A spring assembly is arranged on a second of side of the guide member and comprises at least one leaf spring, the spring assembly having a fixed end, which is fixed to the housing, and an opposite free end, which is not fixed to the housing. The spring assembly extends at an angle with respect to the guide member, defining a tapered region between the guide member and the spring assembly, wherein the free end of the spring assembly is arranged closer to the guide member than the fixed end of the spring assembly. A roller is, at least in an activated condition of the elevator safety device, located within the tapered region defined by the spring assembly and the guide member. The roller is capable of moving along the spring assembly towards the free end of the spring assembly into a wedged condition between the spring assembly and the guide member.