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. 28, 2026
Filed:
Nov. 08, 2019
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An elevator device having a safety gear is disclosed that makes it possible to prevent a braking state detecting switch from being turned on in case of power interruption, while becoming activated by an electrically operated actuator. This elevator device includes a safety gear which is provided onto an elevator car and an electrically operated actuator which activates the safety gear and has a braking state detecting switch () to detect a braking state of the safety gear. The braking state detecting switch () is actuated by a mechanism () which is mobilized by a braking element () of the safety gear. Displacement of the braking element () when power supply is lost keeps the braking state detecting switch () in an off state. Displacement of the braking element () in a braking by the safety gear turns on the braking state detecting switch ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile