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:
Feb. 10, 1976
Filed:
Jul. 18, 1974
Lionel B Cornwell, Madison, CT (US);
Other;
Abstract
A controllable power transferring device of the type used for controlling or regulating the application of A.C. electric power to a load by means of a reactance controlled by selectively short-circuiting a control coil with a controllable short-circuiting switch such as an SCR. The device employs a power transformer with a power core and a primary coil and a secondary coil each encircling the power core. A control core, separate from the power core, is encircled by the selectively short-circuited coil and is also encircled by one of the primary or secondary coils to subject that coil to the controlled reactance of the control core. By arranging the primary or secondary coil to encircle both independent cores, more efficient use is made of core and coil material, and more efficient controlled power transfer is obtained.