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. 31, 2010
Filed:
Sep. 04, 2008
Serge Nukhim Kuro, Madison, WI (US);
Graham T. Reitz, Madison, WI (US);
Bradley J. Brunker, Madison, WI (US);
Brent Harper, Mazomanie, WI (US);
Serge Nukhim Kuro, Madison, WI (US);
Graham T. Reitz, Madison, WI (US);
Bradley J. Brunker, Madison, WI (US);
Brent Harper, Mazomanie, WI (US);
Tomotherapy Incorporated, Madison, WI (US);
Abstract
A patient support device of a radiation therapy treatment system includes an electromechanical motor and control system for raising and lowering the support device in the Z direction. The control system utilizes regenerative braking concepts, converting the motor into a generator as the support device is lowered such that no matter the load, the support device will be lowered at a constant speed. The control system also allows for lowering of the support device in the powered off situation (i.e., when there is no power to the support device).