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:
Jul. 27, 2004
Filed:
Sep. 07, 2001
Applicant:
Inventor:
Aloysius Gerardus Majella Hemmer, Hengelo, NL;
Assignee:
Holec Holland N.V., Hengelo, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 4/700 ;
U.S. Cl.
CPC ...
H01H 4/700 ;
Abstract
A trip system for an electrical switch comprises first and second magnetic circuits are formed by a yoke and an armature. The second magnetic circuit has a magnetic resistance in a first position of the armature, which resistance is higher than that of the first magnetic circuit and increases in the movement of the armature from the first to the second position.