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US 4,228,334 AGranted
Dynamic microwave energy moderator
AssigneeThe Procter & Gamble Company
InventorsClarence O. Clark, Thomas J. Flautt, Jr., Donald T. Speckman
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AssigneeThe Procter & Gamble Company
InventorsClarence O. Clark, Thomas J. Flautt, Jr., Donald T. Speckman
Estimating the term…
A dimensionally stable, temperature responsive microwave energy moderator. The moderator may comprise a sheet-like laminate having at least one lamina of microwave energy reflective material with at one aperture formed therein of such dimensions as to enable passage therethrough of a substantial portion of impinging microwave energy of a predetermined nominal frequency. At least one aperture-bridging microwave energy reflective member is provided together with means responsive to a predetermined temperature range to shift the aperture-bridging member from an inactive position to a position bridging the aperture, whereby to reduce the transmission of the microwave energy through the aperture. The moderator also has outer laminae of electrically insulative, microwave energy transmitting material with the microwave energy reflective lamina, the aperture-bridging means and the temperature responsive means located therebetween.
A macroscopically dimensionally stable, dynamically temperature responsive microwave energy moderator comprising a sheet-like laminate comprising at least one lamina of microwave energy reflective material with at least one aperture formed therein of such dimensions as to enable the passage therethrough of a substantial portion of impinging microwave energy of a predetermined nominal frequency, said laminate further comprising temperature responsive means for substantially reducing the transmissibility of microwave energy through said aperture without macroscopically reducing the size of said moderator as the temperature of said temperature responsive means is elevated through a predetermined temperature range.
A dimensionally stable, temperature responsive microwave energy moderator comprising a sheet-like laminate having at least one lamina of microwave energy reflective material with at least one aperture formed therein of such dimensions as to enable the passage therethrough of a substantial portion of impinging microwave energy of a predetermined nominal frequency, at least one aperture-bridging microwave energy reflective member is provided together with means responsive to a predetermined temperature range to shift said aperture-bridging member from an inactive position to a position bridging said aperture so as to reduce the transmission of the microwave energy through said aperture, and top and bottom laminae of electrically insulative, microwave energy transmitting material joined together at their peripheral edges with said lamina of microwave energy reflective material, said aperture-bridging means and said temperature responsive means located therebetween.
Dependencies are inferred from the claim text.