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:
Sep. 25, 2018
Filed:
Aug. 01, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Avshalom Suissa, Kiryat Ono, IL;
Mario Jodorkovsky, Nesher, IL;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A lifting mechanism includes a load bearing structure, and a carrier. The carrier is configured for supporting a load. The carrier is moveable relative to the load bearing structure in a substantially vertical direction relative to a ground surface, along a vertical axis. A load carrying spring applies a spring force that biases the carrier relative to the load bearing structure in a direction along the vertical axis. A negative stiffness device interconnects the carrier and the load bearing structure. The negative stiffness device applies a device force that biases the carrier relative to the load bearing structure in a direction along the vertical axis. The device force opposes the spring force. The device force includes a magnitude that is substantially equal to the spring force in any of a plurality of different positions of the carrier relative to the load bearing structure along the vertical axis.