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:
May. 22, 1990
Filed:
Nov. 25, 1988
Anton Z Zupancic, Kirtland, OH (US);
Joseph S Deucher, Lyndhurst, OH (US);
Picker International, Inc., Highland Hts., OH (US);
Abstract
A computerized tomographic scanning apparatus comprises a gantry assembly for performing tomographic examination and including a detector and data acquisition assembly carried on a first frame for selective rotation about a first axis. A base frame supports the first frame for limited tilting movement about a second axis which lies in a plane generally perpendicular to the first axis. A selectively operable drive assembly for tilting the gantry assembly about the first axis comprises first and second extensible and retractable rotary drive screw assemblies connected between the first frame and the second frame at locations spaced laterally outwardly on opposite sides of the first axis. Each drive screw assembly includes a first end connected to the base frame and a second end connected to the first frame at a point radially outwardly of the second axis. Electric motor and control units are provided for producing simultaneous operation of the first and second drive screw assemblies for producing controlled tilting movement of the first frame about the second axis. Also, the control units includes controls for deenergizing the electric motors if either of the drive screw assemblies fails to operate when its respective electric motor is energized.