Stuart I Gordon

US Patent:

61623113, Dec 19, 2000

Filed:

Oct 27, 1999

Appl. No.:

9/428628

Inventors:

Stuart Gordon - Harrison NY
Robert Horvath - Mount Olive NJ

Assignee:

MMG of North America, Inc. - Paterson NJ

International Classification:

B32B 108
B32B 1800
B32B 3118
B32B 3126

US Classification:

156 8911

Abstract:

Disclosed is a method of producing gapped ferrite toroids without the necessity of machining. This allows for the highly efficient production of tightly controlled energy storage magnetic components and stable inductors. Composite toroids of the invention have a wide range of applications, and could be used as substitutes for more costly and less operationally efficient magnetic components. This invention provides a method of producing composite toroids that include a nonmagnetic gap, by utilizing a layer-forming method, such as tape casting, and subsequently co-firing a monolithic composite magnetic and non-magnetic ceramic structure produced by stacking the layers. The toroids are punched from the stacked layers prior to final firing. This novel method provides a means for producing very well controlled gapped structures.