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. 10, 1990
Filed:
Feb. 22, 1989
Konrad J Richter, Sr, Lawrenceville, NJ (US);
Heinemann Electric Company, Lawrenceville, NJ (US);
Abstract
An electromagnetic circuit breaker uses opposed half shell cases which cooperate to enclose the breaker structure. The structure of the breaker is supported on a frame member which, in turn, is fixed to the housing. The electromagnetic coil for the breaker is supported on a platform extension of the frame wound on a bobbin spool, one flange of which rests against the platform. Passing through the core of the spool and the coil is a non-magnetic tubular core holder containing a magnetic core which is at least spring, and usually gravity, biased toward one end of the tube away from the pole piece closing the other end of the tube. The end of the tube closed by the pole piece is terminated in a radial flange which rests atop the other flange of the coil bobbin. Some part of the flange is, in turn, engaged in the assembly of the housing by shoulders which press the flange toward the bobbin and, in turn, against the supporting platform of the frame, thereby holding the whole structure in place. In preferred embodiments the flange is provided with diametrically opposed extensions which are engaged in slots or pockets on the respective casing sidewalls which function to apply the clamping force.