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:
Jan. 13, 2026
Filed:
Mar. 16, 2020
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention includes machine room unit hoistersby which a machine room unitis suspended from a support member provided in a hoistway so as to be movable in an ascending/descending direction. The machine room unit hoisterssuspend the machine room unitat suspension points. The machine room unit hoistersare provided, supported by the support member. When viewed from a virtual horizontal plane over the machine room unit, distances from a center G of gravity of the machine room unitto each of the suspension points are substantially equal and the center G of gravity is positioned within a region enclosed by virtual straight lines connecting each of the suspension points. When viewed from a virtual horizontal plane over a working platform, the respective suspension pointsof the machine room unitare positioned outside a contour of the working platform
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile