Calvin A Hagberg

US Patent:

40816451, Mar 28, 1978

Filed:

Oct 30, 1975

Appl. No.:

5/627146

Inventors:

Wallace Raymond Javes - Minneapolis MN
Calvin Andre Hagberg - Minneapolis MN
Harold Coulston Anderson - Minneapolis MN

Assignee:

Litton Systems, Inc. - Beverly Hills CA

International Classification:

H05B 906

US Classification:

219 1055B

Abstract:

The power supplied to the cooking cavity of a microwave oven is controlled in response to a preselected temperature of food placed therein. A temperature responsive probe is embedded in the food to be cooked, the probe including means for changing its state with variations in temperature.

US Patent:

47015861, Oct 20, 1987

Filed:

May 30, 1986

Appl. No.:

6/869213

Inventors:

Calvin A. Hagberg - Fridley MN

Assignee:

Litton Systems, Inc. - Beverly Hills CA

International Classification:

H05B 600

US Classification:

219 1055R

Abstract:

An improved system for mounting a magnetron exterior to a microwave oven chamber. A magnetron antenna extends through an orifice in the chamber wall and mounting clips extend from the chamber walls at locations spaced around the orifice. Apertures are provided within the keeper plate of the magnetron to allow the clips to pass therethrough and engage a keeper plate interface on relative rotation of the chamber wall and plate. The clips may be formed as part of the chamber wall.