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:
Jun. 17, 2008
Filed:
May. 19, 2004
Jean-noël Cloux, Nogent sur Vernisson, FR;
Thomas Coquerelle, Douai, FR;
Fabrice Hamon, Arrabloy, FR;
Jean-Noël Cloux, Nogent sur Vernisson, FR;
Thomas Coquerelle, Douai, FR;
Fabrice Hamon, Arrabloy, FR;
Otis Elevator Company, Farmington, CT (US);
Abstract
The counterweight according to the invention for an elevator with a frame () comprising two vertical U-shaped posts () parallel and opposed to each other and connected to each other by at least one upper cross-beam () and one lower cross-beam (), wherein the wings of the vertical posts accommodate flat ballast weights forming a mass and piled up on each other in the frame (), is characterized in that the upper ballast weights (), at least those located at a higher height than that of the conventional tilted assembly of the lower one-piece ballast weights ('), comprise at least two parts interlocked with each other so that they can be successively assembled by interlocking them in a plane and in rows between the two posts (), said interlocking providing a good lateral stiffness to avoid the lateral escape of said two interlocked ballast weight parts (and) out of said frame () during counterweight displacement.