Configured microwave susceptor

United States Patent [19]

Stenkamp et al.

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US005310977A

[ii] Patent Number: 5,310,977 [45] Date of Patent: May 10, 1994

[54] CONFIGURED MICROWAVE SUSCEPTOR

[75] Inventors: Victoria S. Stenkamp, Maplewood, Minn.; Curtis L. Larson, Hudson, Wis.; Pierre H. LePere, Cottage Grove, Minn.

[73] Assignee: Minnesota Mining and

Manufacturing Company, St. Paul,
Minn.

[21] Appl. No.: 980,427

[22] Filed: Not. 23, 1992

Related U.S. Application Data

[63] Continuation of Ser. No. 649,212, Jan. 25, 1991, abandoned, which is a continuation of Ser. No. 306,530, Feb. 3, 1989, abandoned.

[51] Int. CI.' H05B 6/80

[52] U.S. CI 219/730; 219/727;

426/107; 426/234; 426/243; 99/DIG. 14

[58] Field of Search 219/10.55 E, 10.55 F,

219/10.55 M, 10.55 R; 426/107, 109, 111, 112, 113, 114, 241, 234, 243; 99/DIG. 14, 451, 425,

444, 445, 446

[56] References Cited

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62-158929 7/1987 Japan 219/10.55 E

OTHER PUBLICATIONS

"Microcrisp Wrap Browns, Crisps Pies in Minutes",

World Food and Drink Report, Mar. 23, 1989.

"The Role of Packaging in Achieving Browning and

Crisping" Mar. 9, 1988, by Scott William Middleton, 24

pages.

Primary Examiner—Philip H. Leung

Attorney, Agent, or Firm—Gary L. Griswold; Walter N.

Kirn; Peter L. Olson

[57] ABSTRACT

A microwave susceptor having projections such as linear ridges which define circulation channels such as linear grooves. The susceptor may include apertures at the ridge apexes and the groove nadirs for allowing food secretions such as grease and steam, to pass through the susceptor. A strut may be releasably coupled to the susceptor for increasing the structural integrity of the susceptor.

3 Claims, 4 Drawing Sheets