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. 14, 2005
Filed:
May. 20, 2003
Todd L. Mendenhall, Rancho Palos Verde, CA (US);
Todd L. Mendenhall, Rancho Palos Verde, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A spherical motor () that includes an outer field sphere () and an inner armature sphere () rotatable therein. Field magnetic elements () are disposed on the field sphere () and sensor/actuator magnetic elements () are disposed on the armature sphere (). The field magnetic elements () include two coils () providing regularly varying magnetic fields in two axes. The sensor/actuator magnetic elements () include coils () providing magnetic fields in three axes. Each sensor magnetic element () senses its localized magnetic field variations and generates a torque relative thereto. Over one complete field variation of the field magnetic elements (), each sensor magnetic element () can produce torque about all three axes.