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:
Jan. 28, 1997
Filed:
Feb. 12, 1993
Applicant:
Inventors:
Niels D Jensen, Bjerringbro, DK;
Jo slashedrgen Daugbjerg, Ulstrup, DK;
Assignee:
Grundfos A/S, Bjerringbro, DK;
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318794 ; 318788 ; 318785 ;
Abstract
The single-phase induction motor has a starting device which is activated during the start-up phase of the motor and exposes at least a part of the motor coil to a voltage which changes temporarily, the average value of the voltage formed during one period of oscillation not being equal to zero.