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. 16, 1981
Filed:
Nov. 09, 1978
Applicant:
Inventors:
Arthur W Haydon, Middlebury, CT (US);
John J Dean, Oxford, CT (US);
Assignee:
Tri-Tech, Inc., Waterbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310254 ; 310 / ; 310164 ; 310218 ;
Abstract
A small electric motor including one or more field coils which cooperate with a long, thin cylindrical rotor having only a single pair of nonsalient rotor poles. A stator pole piece assembly is in magnetic flux relationship with the rotor and is provided with salient stator poles which each subtend an angle of at least about one hundred and twenty degrees with respect to the axis of rotation of the rotor. In some embodiments the stator poles are arranged in sets which cooperate with different axial portions of the rotor.