Embodiments provide a microwave oven comprising a microwave generator, a control unit that controls the microwave generator, a tray produced from a microwave permeable material and whereon foodstuffs such as vegetables and fruits to be dried are placed, and a cavity wherein the tray is placed.

A method of treating a meat-substance containing a bone structure. The bone marrow is coagulated with microwaves generated by a solid-state RF energy source. The microwave heating may be carried out prior to a heat treatment of the meat-substance and/or may be carried out after slaughtering and before the fresh slaughtered meat-substance is frozen.

A continuous asphalt mix system for using a microwave heating vessel at the point of production that includes a microwave energy suppression tunnel with one or more mesh flaps for substantially reducing or preventing the leakage of microwave energy from a microwave system, while having a continuous flow of product through the vessel and suppression tunnels. The suppression tunnels are installed on the inlet and/or the outlet side of the system and are sized to suppress leakage.

A microwave mode stirrer apparatus having a stirring member with microwave-transmissive regions is disclosed, along with methods of performing microwave stirring using the microwave mode-stirring apparatus. The microwave-transmissive regions can be in the form of holes or can include microwave-transmissive material. The stirring member can have a variety of configurations, and the microwave-transmissive regions can have a variety of sizes and shapes. A microwave oven that uses the mode stirrer apparatus for drying green ceramic-forming bodies is also disclosed.

Serpentine microwave dryers and a method of fabricating same are disclosed. The serpentine microwave dryers utilize microwave waveguides that includes passages through a short axis of the microwave waveguides that are sized to pass a continuous-form print medium. A long axis of the microwave waveguides are positioned across a width of a media path of the continuous-from print medium. Electromagnetic energy transported along the microwave waveguides is used to dry wet colorants applied to the continuous-form print medium. At least one of the microwave waveguides has an offset from other microwave waveguides that is perpendicular to the media path of the continuous-form print medium. The offset reduces an attenuation of the electromagnetic energy in microwave waveguide(s) that are offset.

A microwave drying method of a honeycomb formed body includes: an introduction step of disposing the honeycomb formed body while keeping an axis direction of cells of the honeycomb formed body vertically and introducing the honeycomb formed body into a drying furnace capable of irradiating with microwaves; a reflector placing step of placing a microwave reflector above the honeycomb formed body, the microwave reflector including a reflecting face having a coverage factor to an area of an end face of the honeycomb formed body that is 15% to 30%; and a microwave drying step of irradiating the honeycomb formed body with the microwaves of 915 MHz in frequency from above to dry the honeycomb formed body.

Serpentine microwave dryers and a method of fabricating same are disclosed. The serpentine microwave dryers utilize microwave waveguides that includes passages through a short axis of the microwave waveguides that are sized to pass a continuous-form print medium. A long axis of the microwave waveguides are positioned across a width of a media path of the continuous-from print medium. Electromagnetic energy transported along the microwave waveguides is used to dry wet colorants applied to the continuous-form print medium. At least one of the microwave waveguides has an offset from other microwave waveguides that is perpendicular to the media path of the continuous-form print medium. The offset reduces an attenuation of the electromagnetic energy in microwave waveguide(s) that are offset.

Microwave based systems and methods are provided for obtaining carbonaceous compounds from polypropylene-containing products. In one example, embodiment, a method is provided for recovering at least one organic decomposition product from a polypropylene-containing product, the method comprising: placing the polypropylene-containing product in a reduction zone of a material recovery system; flowing an inert gas through the reduction zone from a reduction inlet to a reduction outlet to purge the reduction zone and maintain a positive pressure therein; applying electromagnetic wave energy from an electromagnetic wave generator to the reduction zone via a bifurcated waveguide assembly, while maintaining the polypropylene-containing product in a stationary position for at least a portion of the applying, to yield at least one gaseous organic decomposition product; and exhausting the at least one gaseous organic decomposition product from the reduction zone along with the inert gas through the reduction outlet.

A method of drying a green ceramic honeycomb body (20) comprising: moving the body (20) through a drying system (50) comprising interconnected microwave devices (60), wherein each microwave device (D1, D2, D3) comprises an entrance (62a, 62b, 62c) located at an upstream end and an exit (64a, 64b, 64c) located at a downstream end of the microwave device (D1, D2, D3), the ends defining a downstream direction (72) and an upstream direction (74) in each of the devices (D1, D2, D3); removing moisture from the body (20) by irradiating the body (20) with microwave radiation within each of the devices (D1, D2, D3); and flowing air against the outer peripheral wall (22) of the body (20) while the body (20) is located in each of the microwave devices (D1, D2, D3). The flowing is conducted such that one or more of a supply flow and an exhaust flow of air is adjusted in at least one of the devices (D1, D2, D3) such that the air flow in the system is at a predetermined magnitude substantially in the upstream (74) or downstream direction (72).

A continuous asphalt mix system for using a microwave heating vessel at the point of production that includes a microwave energy suppression tunnel with one or more mesh flaps for substantially reducing or preventing the leakage of microwave energy from a microwave system, while having a continuous flow of product through the vessel and suppression tunnels. The suppression tunnels are installed on the inlet and/or the outlet side of the system and are sized to suppress leakage.