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. 19, 1995
Filed:
Apr. 09, 1993
Arthur J Bellemore, Chelmsford, MA (US);
Thomas K Hebert, Groveland, MA (US);
David B Larsen, Woburn, MA (US);
Miles Inc., Wilmington, MA (US);
Abstract
An integrated rotary drive apparatus for driving an element to be rotated in a controlled manner, comprises; a coupling shaft coupled to the element to be rotated, a drive shaft having a hollow portion within which the coupling shaft engages, a shaftless DC motor armature coupled to the coupling shaft for directly driving the coupling shaft, and a flywheel and rotary encoder disk coupled to the drive shaft to rotate therewith. The integrated rotary drive further includes a first enclosure section, for mounting to a non-rotating frame member for supporting the integrated rotary drive, and a second enclosure section mounted to the first enclosure section, for supporting a non-rotating optical encoder reader in proximity to the rotary encoder disk for providing a feedback signal, and for supporting a non-rotating DC motor stator in proximity to the DC motor armature for driving the DC motor armature when a DC current is applied to the stator.