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US 10,477,630 B2Granted
Multiple cavity microwave oven door
AssigneeWhirlpool Corporation
InventorLuana Spagnoli
Life of this patent
Estimating the term…
Abstract
An interrupting circuit is configured to monitor for and detect a fault in a device for generating a field of electromagnetic radiation (e-field) from a radio frequency (RF) generator configured to convert low voltage direct current (DC) into the e-field for application to an article in the e-field. If a fault is detected, the interrupting circuit interrupts low voltage DC between an energy reserve and the RF generator within a predetermined time less than the time to dissipate energy stored in the energy reserve.
Claims20
A microwave oven comprising:
- a cooking cavity;
- a dividing shelf for divided the cooking cavity into first and second sub-cavities;
- a door movable between a first position for simultaneous access to the first and second sub-cavities and a second position for preventing simultaneous access to the first and second sub-cavities;
- and
- a choke frame on the door, wherein the choke frame is in communication with the dividing shelf when the door is in the second position to attenuate microwave transmission between the first and second sub-cavities, wherein the choke frame includes a conductive reed positioned to provide electrical continuity with the dividing shelf when the door is in the second position, wherein the conductive reed extends the width of the door adjacent the divider shelf.
2 more elements
A microwave oven comprising:
- a cooking cavity;
- and
- a dividing shelf for dividing the cooking cavity into first and second sub-cavities, wherein the dividing shelf comprises:
- a gasket disposed around all sides thereof to attenuate the transmission of microwaves between the sub-cavities,
- an upper dielectric layer,
- a lower structural layer that is not transparent to microwaves and spaced from the upper dielectric layer;
- and
- thermal insulation material filling the space between the upper dielectric layer and lower structural layer;
- a door movable between a first position for simultaneous access to the first and second sub-cavities and a second position for preventing simultaneous access to the first and second sub-cavities;
- and
- a choke frame on the door, wherein the choke frame is in communication with the dividing shelf when the door is in the second position to attenuate microwave transmission between the first and second sub-cavities, wherein the choke frame includes a conductive reed positioned to provide electrical continuity with the dividing shelf when the door is in the second position, wherein the conductive reed extends the width of the door adjacent the divider shelf.
8 more elements
Dependencies are inferred from the claim text.