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:
Nov. 13, 2001
Filed:
Feb. 07, 2000
Applicant:
Inventor:
Neil W. Phillips, Bristol, GB;
Assignee:
Notetry Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 2/900 ; H02K 7/20 ;
U.S. Cl.
CPC ...
H02K 2/900 ; H02K 7/20 ;
Abstract
A motor comprising two or more rotors (,) rotated by means of a common power supply (,), each rotor (,) having a plurality of poles (,) and being associated with a stator (,) having a plurality of poles (,), wherein the arrangement of rotor poles (,) and stator poles (,) is different for each rotor 920, 30) so that the rotors (,) rotate at different speeds when the common power supply (,) is applied.