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:
Mar. 18, 1986
Filed:
Jun. 12, 1984
Applicant:
Inventor:
Richard S Lenzing, Farmington, CT (US);
Assignee:
The Superior Electric Company, Bristol, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323341 ; 336149 ;
Abstract
An adjustable voltage transformer having a commutating surface formed of segments of electrical conductors upon which a contact brush is movable while in electrical engagement therewith. Means are provided to 'step' the brush between segments, so that when at rest, the brush contacts no more than one segment, thus reducing short-circuiting currents and overheating; however, when the brush is being moved, it is in contact with two segments, thus allowing uninterrupted output from the transformer.