An antenna cover assembly for a high-temperature operating environment has a cover plate, gasket portions, and a retainer plate. The cover plate has an inner side and an outer side, the cover plate being translucent to at least one selected frequency of electromagnetic energy. The gasket portions ar
An antenna cover assembly for a high-temperature operating environment has a cover plate, gasket portions, and a retainer plate. The cover plate has an inner side and an outer side, the cover plate being translucent to at least one selected frequency of electromagnetic energy. The gasket portions are each located adjacent one of the inner and outer sides, each gasket portion being configured for sealingly engaging the adjacent side. The retainer plate is configured for attachment to a structure located in a high-temperature operating environment. The retainer plate has a sealing flange adapted for clamping the cover plate generally adjacent an antenna portion of a waveguide.
대표청구항▼
1. An antenna cover assembly for a high-temperature operating environment, comprising: a waveguide for installation within a cook cavity, the waveguide comprising an outer wall, an inner wall, and a plurality of slot antennae formed in the inner wall for permitting energy to be emitted through the i
1. An antenna cover assembly for a high-temperature operating environment, comprising: a waveguide for installation within a cook cavity, the waveguide comprising an outer wall, an inner wall, and a plurality of slot antennae formed in the inner wall for permitting energy to be emitted through the inner wall into the cook cavity;at least one cover plate configured to cover one or more of the slot antenna, the at least one cover plate having an inner side and an outer side and a plate edge, and being translucent to at least one selected frequency of electromagnetic energy;one unitary gasket per cover plate, each unitary gasket comprising at least two elastomeric gasket portions, wherein one of the gasket portions is configured for sealingly engaging the plate edge against the inner side to provide an inner sealing interface, and wherein another gasket portion is configured for sealingly engaging the plate edge against the outer side to provide an outer sealing interface, wherein the gasket provides a clearance distance of about 0.375 inches or less between the cover plate and the inner wall of the waveguide;a plurality of retainer plates adapted for attachment to a structure located in a high-temperature operating environment, each retainer plate having a sealing flange adapted for clamping one of the cover plates generally adjacent an antenna portion of a waveguide. 2. The antenna cover assembly according to claim 1, wherein each unitary gasket comprises a U-shaped gasket. 3. The antenna cover assembly according to claim 1, wherein each gasket comprises an inner groove configured for engaging a periphery of the cover plate. 4. The antenna cover assembly according to claim 1, wherein the sealing flange has a rim offset from a plane of one of the plurality of slot antenna. 5. The antenna cover assembly according to claim 1, wherein the cover plates are formed from a ceramic material. 6. The antenna cover assembly according to claim 1, wherein (a) the retainer plate further has a base portion and (b) the sealing flange comprises (i) a rim generally planar to the base portion and (ii) an angled member connecting the rim to the base portion. 7. An antenna cover assembly for a microwave oven, comprising: a waveguide having an inner wall and a plurality of slot antenna formed in the inner wall, the waveguide being adapted for attachment in an oven;at least one cover plate configured to cover one or more of the plurality of slot antenna, each cover plate having an inner side and an outer side and a plate edge, the cover plate being translucent to at least microwave frequency energy;one unitary gasket per cover plate, each unitary gasket comprising at least two elastomeric gasket portions, wherein one of the gasket portions is configured for sealingly engaging the plate edge against the inner side to provide an inner sealing interface, and wherein another gasket portion is configured for sealingly engaging the plate edge against the outer side to provide an outer sealing interface, wherein the gasket provides clearance distance of about 0.375 inches or less between the cover plate and the inner wall of the waveguide;a plurality retainer plates having a sealing flange for clamping one of the cover plates generally adjacent one of the plurality of slot antenna. 8. The antenna cover assembly according to claim 7, wherein each unitary gasket comprises a U-shaped gasket. 9. The antenna cover assembly according to claim 7, wherein each gasket comprises an inner groove configured for engaging a periphery of the cover plate. 10. The antenna cover assembly according to claim 7, wherein the sealing flange has a rim offset from a plane of one of the plurality of slot antenna. 11. The antenna cover assembly according to claim 7, wherein the cover plates are formed from a ceramic material.
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