Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6960747 | Microwave applicator system A microwave applicator for heating loads being a waveguide transition between the rectangular TE10 and TE20 modes comprising a TE10 mode section and a TE20 mode section. The location of the load being inside said TE20... | 11/01/2005 |
| 6329645 | Apparatus for dampening standing wave pattern generation in microwave oven An apparatus for dampening standing wave pattern generation in a closed cavity of a microwave oven, includes a fluid table having an enclosure made of a microwave energy transparent material, such as plastic, and a structure, such as top flat platform hel... | 12/11/2001 |
| 6054696 | Feedback system to automatically couple microwave energy into an applicator A microwave processing system comprising a microwave applicator and a microwave source. A microwave source generates a microwave field at an output frequency. A frequency of the microwave field in the elongated chamber and the output frequency of the micr... | 04/25/2000 |
| 5837977 | Microwave heating container with microwave reflective dummy load A container for containing a dummy load while being subjected to microwave radiation that includes a first surface with an exterior surface and an inner surface, wherein the first surface includes an optically transparent material. A second surface having... | 11/17/1998 |
| 5422463 | Dummy load for a microwave dryer A matched or dummy load for a microwave dryer having a microwave generator and a microwave applicator. The matched load includes a waveguide having opposed broad walls, opposed narrow walls, and an end wall defining a waveguide chamber. A power absorbing ... | 06/06/1995 |
| 5146058 | Microwave resonant cavity applicator for heating articles of indefinite length A rectangular microwave resonant cavity applicator comprising two spaced-apart, cavity-containing sections is disclosed for heating a product web. Each section has a planar peripheral lip which faces the other and the sections are spaced apart by a distan... | 09/08/1992 |
| 5025810 | Heating apparatus for hyperthermia A heating apparatus for hyperthermia utilizes electromagnetic waves for locally heating cancerous cells within a living body. Electromagnetic waves output from a single electromagnetic wave generating means are branched into a plurality of branched electr... | 06/25/1991 |
| 4981627 | Method for closure heating A method and appaatus for curing a gasket material on a cap, the apparatus having a microwave transmitter, associated wavegide and a device for moving multiple caps through the waveguide. A plastic material is applied to the cap so as to form a gasket. Th... | 01/01/1991 |
| 4711983 | Frequency stabilized microwave power system and method System and method for applying microwave power of substantially constant frequency and variable power level to a work load. A microwave power source having an operating frequency which varies with power level is operated at a substantially constant power ... | 12/08/1987 |
| 4689459 | Variable Q microwave applicator and method Apparatus and method for applying microwave energy to a material in a resonant cavity. The Q of the cavity is reduced to broaden the bandwidth of the system by passing a portion of the microwave energy from the cavity through an iris plate to a dummy load... | 08/25/1987 |
| 4663507 | Method and apparatus for reduction of fly ash carbon by microwave A method and apparatus is provided for reducing and measuring carbon content in fly ash. The invention employs microwave energy as the method of heating for inducing combustion of the carbon in a fly ash sample. Measurement of the carbon content can be ac... | 05/05/1987 |
| 4629847 | Resonator device for a microwave heat applicator The microwave power head or modular heat applicating unit comprising a resonator, a waveguide, a source of microwave energy and a water load device. The resonator is divided into two chambers by a center wall member. A microwave energy receiving antenna m... | 12/16/1986 |
| 4625089 | Water load container device for a microwave heat applicator A modularized water load device for a microwave heat applicating unit comprising a resonator, a waveguide and a source of microwave energy. The constituent units or components of the water load device are arranged in a sandwich like manner to form a readi... | 11/25/1986 |
| 4617440 | Microwave heating device A microwave power head or modular heat applicating unit comprising a resonator, a waveguide, a source of microwave energy and a water load device. The constituent units or modular components of the power head are arranged in a sandwich like manner to form... | 10/14/1986 |
| 4324965 | Microwave heating method and apparatus including adjustable tuning members A method and apparatus for matching a microwave heater to reduce the microwave energy reflected by the load, wherein microwave energy from a microwave energy source is supplied to a treatment chamber by a hollow waveguide of rectangular section. A directi... | 04/13/1982 |
| 4228809 | Temperature controller for a microwave heating system In a microwave system where energy is directed through an applicator to heat a specimen, the inaccuracies encountered when control temperatures are monitored with thermocouples located in the presence of the microwave field are precluded through the use o... | 10/21/1980 |
| 4106329 | Solid or water quantity measurement apparatus using microwaves An apparatus for measuring water in cow's milk. Sample milk is heated and dryed by microwaves in an oven made of a microwave waveguide. Weights of the sample before and after the drying of the sample are measured by an automatic balance. Weight signals ob... | 08/15/1978 |
