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:
Apr. 04, 1995
Filed:
Mar. 01, 1993
Applicant:
Inventor:
Mathew Joseph, Mesquite, TX (US);
Assignee:
AT&T Corp., Murray Hill, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
336192 ; 336206 ; 336208 ;
Abstract
A transformer structure of modular parts comprises a bobbin for supporting the primary winding, and one or more sets of end pieces sized to successively fit one over another in a nesting arrangement. The end piece flanges provide part of the secondary winding support surface. Further winding surfaces may be provided by adding further sets of end pieces which nest one within the other. The end piece flanges afford added inter-winding isolation. A double flange version of the end pieces affords still greater isolation. While applicable to small-scale transformers, the concept can also be adapted for medium and larger-size transformer designs.