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| Number | Title | Issue Date |
| 7148456 | Method and apparatus for microwave phosphor synthesis A method of microwave synthesis of phosphors includes a microwave furnace having a microwave chamber; providing starting material in the microwave chamber; and subjecting the starting material to microwaves, whereby the starting material is synthesized into phosphor... | 12/12/2006 |
| 7089681 | Method and apparatus for filtering and drying a product The present invention relates to a method and apparatus for filtering and drying a product. In a preferred embodiment, the apparatus comprises a container having a plurality of porous walls and a plurality of solid walls that divide the container into a plurality of... | 08/15/2006 |
| 7089685 | Method of microwave treatment of wood A method of microwave treatment of wood with a moisture content (based on dry weight) of at least 12% for rapid drying and stress relief which includes determining an area of the wood that is not to be treated, selectively subjecting a surface of the wood outside sa... | 08/15/2006 |
| 7048136 | Canister lid with improved evacuation and vent assembly A canister lid includes a cover member adapted to cover a canister, thereby defining an interior of the canister. An evacuation valve is adapted to allow evacuation of the interior of the container. A vacuum release valve is adapted to allow venting of the interior ... | 05/23/2006 |
| 7001629 | Method and plant for solvent-free microwave extraction of natural products A microwave extraction method involves the steps of placing biological material in an enclosure without any solvent whatsoever and exposing the solvent-free biological material to microwave radiation to free at least some of the natural product, and then separating ... | 02/21/2006 |
| 6889447 | Method for drying a wafer and apparatus for performing the same An instantaneous pressure reducing heating and drying apparatus for an object, such as a wafer, includes a pressure reducing chamber; a vacuum pump for reducing a pressure in the pressure reducing chamber to below atmospheric pressure; a drying chamber installed wit... | 05/10/2005 |
| 6675495 | Method for drying saw timber and device for implementing said method The invention relates to a process for drying wood, characterized in that it comprises a pressurizing step to place a sealed chamber (1) under a predetermined pressure by injecting or generating saturating steam and maintaining this pressure for a predete... | 01/13/2004 |
| 6627163 | Process for sterilizing containers In order to sterilize previously washed containers in an evacuable reactor, a low pressure plasma is generated by a high frequency generator. A microwave generator is also and can be switched on for drying the container before the plasma is ignited.... | 09/30/2003 |
| 6557462 | Combined vacuum valve and vacuum indicator Disclosed is a vacuum valve including a lid, a depression defined on the lid, a boss formed on the lid at a bottom of the depression, a rotary cover rotatably arranged in the depression, and a closure member detachably coupled to the rotary cover. The vac... | 05/06/2003 |
| 6473994 | Method for drying saw timber and device for implementing said method The invention relates to a process for drying wood, characterized in that it comprises a pressurizing step to place a sealed chamber (1) under a predetermined pressure by injecting or generating saturating steam and maintaining this pressure for a predete... | 11/05/2002 |
| 6442866 | Method and apparatus for drying or heat-treating products The invention relates to a method and an apparatus for drying or heat-treating substances or products at a pressure other than atmospheric pressure. The invention relates furthermore to banana chips dried by means of this method and banana powder produced... | 09/03/2002 |
| 6297479 | Method and apparatus for drying or heat-treating products The invention relates to a method and an apparatus for drying or heat-treating substances or products at a pressure other than atmospheric pressure. The invention relates furthermore to banana chips dried by means of this method and banana powder produced... | 10/02/2001 |
| 6128831 | Process for drying medicinal plants Medicinal plants are dried by applying microwave power to plant materials in a chamber under reduced pressure to reduce the moisture content of the plant materials without significantly reducing (oxidizing) the concentration of active medicinal component ... | 10/10/2000 |
| 6092301 | Microwave drying of hides under vacuum in tanning equipment By providing a hide processor or tanning drum with appropriate equipment for applying vacuum and microwave energy concurrently, these tanning machines become a versatile means of drying to yield dry hides that contain no salt yet store better than salted ... | 07/25/2000 |
| 6076277 | Process for enlarging the surface of particles In order to enlarge the surface of particles which absorb liquids at least o a limited extent, the particles are exposed to a liquid or to a humid atmosphere containing this liquid at least until said liquid has penetrated into the area of the particles cl... | 06/20/2000 |
| 6025580 | Microwave and far infrared drying under reduced pressure A method of drying objects includes the steps of placing the objects into a pressure reduction tank, placing a metallic element having a single or plural number of sharp edge into the pressure reduction tank, subjecting the objects to controlled microwave... | 02/15/2000 |
| 5974686 | Method for preserving cooked food using a vacuum sealed preservation container A vacuum sealed preservation container comprises a container main body and a lid made of a synthetic resin which is heat resistant and cold resistant and has microwave permeability, in which the lid has on the upper surface thereof a check valve constitut... | 11/02/1999 |
| 5962057 | Process for drying mango and pineapples A vacuum microwave dehydration process for drying fresh mango and pineapple fruit pieces at low temperatures which results in a product with a "fresh", uncooked flavor and a unique crunchy texture with little or no shrinkage which can not be achieved thro... | 10/05/1999 |
| 5956865 | Process for drying herbs Herbs are dried by applying microwave power to herbs in a chamber under reduced or negative pressure to reduce the moisture content of the herbs without significantly damaging the flavor of the dried herbs and produce a dried herb having a flavor more clo... | 09/28/1999 |
| 5951947 | Vacuumized microwave decontamination of waste materials A method for preparing fertilizer from animal, human and medical waste utilizing vacuumized microwave pathogen decontamination. The invention contemplates simultaneously heating the waste and reducing the pressure the reaction chamber in which the waste i... | 09/14/1999 |
| 5919506 | Process for maturing meat products A process for maturing meat products, in particular pork products, such as ham, "coppa", bacon, sausage and the like, characterized in that the product is let in a substantially sealed environment at less than atmospheric pressure, heat being supplied to ... | 07/06/1999 |
| 5884417 | Microwave-assisted separations using volatiles The generation of volatiles from liquid or solid materials is enhanced and accelerated by exposure to microwave radiation. Normally the energy transfer is effected preferentially toward the liquid or solid materials over the generated gaseous volatiles. S... | 03/23/1999 |
| 5886326 | Microwave waste incinerator A microwave incinerator is configured to incinerate waste material. The waste material is installed within a microwave absorbing shroud located in a microwave chamber. The combination of low microwave heat input and a vacuum drawn on the chamber vaporizes... | 03/23/1999 |
| 5859412 | Microwave and far infrared drying under reduced pressure A method of drying objects includes the steps of placing the object into a pressure reduction tank, placing a metallic element having an acute-angled portion into the pressure reduction tank, reducing to the pressure toward a predetermined single reduced ... | 01/12/1999 |
| 5341576 | Method and apparatus for drying granular materials The present invention discloses a method and an apparatus for drying granular materials by submitting them to dielectric heating by means of electromagnetic waves such as microwave, high frequency, etc. The granular materials to be dried are heated to the... | 08/30/1994 |
| 5230160 | Reduction of aflatoxin content in peanuts Peanuts with a moisture content of from 6% to 15% are subjected to vacuum drying and/or roasting in a chamber using microwave energy to ensure penetration of the kernel. Aflatoxin compounds are destroyed and/or driven off with the vapors exiting the vacuu... | 07/27/1993 |
| 5229010 | Rotating microwave contaminated materials treating apparatus and method of using thereof An apparatus and method for the efficient removal of hazardous and nonhazardous volatile and semi-volatile organic materials from contaminated materials includes an evaporation/vacuum heating chamber that communicates with a microwave generator, a vacuum ... | 07/20/1993 |
| 5120500 | Process and device for nonpolluting mass deacidification of books and other paper products Process and device for the nonpolluting mass deacidification of books and other printing and paper products with the predrying of these products by high-frequency radiation in a vacuum, then the application of a neutralization treatment with solutions for... | 06/09/1992 |
| 5003143 | Microwave sludge drying apparatus and method An apparatus for separating hazardous volatile and semi-volatile organic materials from contaminated solid waste by-products is comprised of an evaporation/vacuum heating chamber that is designed to hold a sample of the solid waste product on a batch basi... | 03/26/1991 |
| 4962592 | Method and device for removing liquid from a mixture of solids and liquids The invention relates to a method and device for removing liquid from a mixture of solids and liquids, whereby the mixture is deposited on the upper part of an endless drivable filter belt and whereby during operation the upper part of the filter belt is ... | 10/16/1990 |
| 4856201 | System for conditioning of leather hides, furs and the like The present invention provides a system for the drying of leather where an improved uniform distribution of the desired residual moisture content is obtained and a reproducible setting of the moisture content is effected in a capable and powerful method. ... | 08/15/1989 |
| 4778970 | Viscosity reduction apparatus using microwave energy A method and apparatus for reducing the viscosity of high viscosity material within a container. An electromagnetic enery source is mounted within a housing which is provided with a fixture that is configured to interconnect with the container of high vis... | 10/18/1988 |
| 4640020 | Zoned microwave drying apparatus and process An apparatus for drying nodular, granular and other products includes a vessel containing an evacuated chamber and an endless belt conveyor that passes through the chamber. Microwave energy is supplied to the chamber by several microwave generators, with ... | 02/03/1987 |
| 4637145 | Low pressure microwave drying apparatus An improved low pressure microwave drying apparatus comprises a drying chamber made of a microwave-permeable and gas-impermeable material and a microwave applying chamber made of a microwave-impermeable material which encloses the drying chamber at a dist... | 01/20/1987 |
| 4622446 | Microwave drying apparatus and use thereof An improved microwave drying apparatus comprising a drying chamber provided with a microwave generator and a layer of a weak dielectric substance laminated on at least a part of the inner surface of the wall of the chamber is provided, whereby the occurre... | 11/11/1986 |
| 4622448 | Microwave vacuum dryer apparatus Slot-array antennas are connected by waveguides (14, 15, 16, 17) to microwave generators and are disposed within a vacuum drying tank of a drying apparatus. Blocking plates (23) are mounted in the waveguides so as to keep the waveguides airtight thereby m... | 11/11/1986 |
| 4590683 | Method of and apparatus for drying wound fiber or yarn Fiber or yarn wrapped on spools is dried in a pair of vessels in an alternating gas flow arrangement. Each vessel is located in a separate circulation loop. The two circulation loops have a common circulation leg. Each of the circulation loops is connecte... | 05/27/1986 |
| 4549053 | Microwave drying device and method Method and device in which a suspension in air or other gas of liquid droplets or fine particles containing an electromagnetic energy absorbent component is subjected to microwave radiation to apply energy to the droplets or particles as they fall to a co... | 10/22/1985 |
| 4393671 | Apparatus for dyeing fiber by utilizing microwaves The apparatus comprises a vessel to hold fiber to be dyed, the vessel being formed of a gas tight pressure resisting sealed construction and having a lid member to seal the vessel, the lid member being provided with a pressure control valve to control the... | 07/19/1983 |
| 4377039 | Process for the drying of wood by use of dielectric energy A process for the drying of wood is disclosed. The drying is carried out by heating the wood in an oil and under vacuum with heating being carried out wholly or partly by use of dielectric energy.... | 03/22/1983 |
