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. 14, 1989
Filed:
Mar. 22, 1988
Hydro-Quebec, Quebec, CA;
Abstract
An oven for thermo-magnetic treatment of toroidal coils of amorphous ferro-magnetic ribbon material whereby to improve the eddy current and hysteresis losses thereof for utilization of such coils in a distribution transformer construction. The oven comprises a housing formed as an annular chamber with thermo insulating material disposed at the interior of the chamber. A wire coil is wound about the annular chamber through the inner central passage thereof whereby to generate a magnetic field about the housing to orient the ferro-magnetic domains in the amorphous ribbon material being heat treated in the chamber. At least one toroidal coil is disposed within the chamber between a pair of heating plates to which controlled heat is applied. Preferably, the chamber is evacuated or an inert gas is provided therein.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile