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:
Dec. 22, 1987
Filed:
Sep. 04, 1986
Albert Palmero, Harwinton, CT (US);
Charles Hansen, Wolcott, CT (US);
Tri-tech, Inc., Waterbury, CT (US);
Abstract
An electric motor has an annular permanent magnetic rotor having rotor poles of alternating polarity around its circumference. The motor has an outer stator disposed concentrically around the outer periphery of the rotor which has an annular configuration and a plurality of axially extending salient magnetic poles of opposite polarity alternating around the outer stator's inner periphery. The motor also has an inner stator disposed concentrically within the inner periphery of the rotor which has an annular configuration and a plurality of axially extending salient magnetic poles of opposite polarity alternating around the inner stator's periphery. A separately energizable annular coil of wire disposed inside each stator energizes that stator's magnetic poles in response to sequential energization of each coil with electricity in different phase relationship with each other.