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| Number | Title | Issue Date |
| 6968631 | Method and apparatus for determining presence of moisture in freeze dryer vacuum line A freeze dryer having a collector chamber is provided with a sensor for detecting the presence of moisture in the chamber so that the vacuum pump cannot be operated if moisture is present. The refrigeration system can also be deactivated. This precludes moisture fro... | 11/29/2005 |
| 6941676 | Apparatus for freeze-drying foodstuffs and medicaments Disclosed is a freeze-drying apparatus for foodstuffs, medicaments, etc., wherein liquid material is directly and distributively poured into upright cylindrical tubes, then, in its isolated state from external atmosphere for perfect sterilization, the liquid materia... | 09/13/2005 |
| 6931754 | Freeze-drying apparatus A drying unit for removing solvent from moist material, and a method for drying moist material with the drying unit. The unit comprises at least one drying chamber (23) having at least one stand plate (2) for holding vessels (3), which are fille... | 08/23/2005 |
| 6606800 | Electric hair treatment appliance The electrical hair treatment appliance (1) includes an electrically controlled hair treatment device, preferably including infrared emitter elements (20), and an operator control panel (2) rigidily attached to the hair treatment device. The operator cont... | 08/19/2003 |
| 6564471 | Method and apparatus for freeze-drying A method and an apparatus for effecting freeze-drying specimens containing solvents or condensing solvents having a shallow pan treatment chamber with little or no obstructions, holes or orifices. The treatment is effected by cooling the base of the chamb... | 05/20/2003 |
| 6543154 | Freeze-dried product and process and apparatus for producing it Freeze-dried products of high quality produced from materials to be freeze-dried in a freeze-drying apparatus comprising a sealed vessel enclosing a processing chamber provided therein with a rotary cage receiving a gas-permeable container containing one ... | 04/08/2003 |
| 6543155 | Freeze-dried product and process and apparatus for producing it Freeze-dried products of high quality produced from materials to be freeze-dried in a freeze-drying apparatus comprising a sealed vessel enclosing a processing chamber provided therein with a rotary cage receiving a gas-permeable container containing froz... | 04/08/2003 |
| 6311409 | Freeze drying apparatus The present invention provides methods and apparatus for freeze drying in which a solution, which can be a radioactive salt dissolved within an acid, is frozen into a solid on vertical plates provided within a freeze drying chamber. The solid is sublimate... | 11/06/2001 |
| 6225611 | Microwave lyophilizer having corona discharge control A lyophilizer system is adapted for operation in a first mode or a second mode with microwave assisted drying. The system includes a lyophilizing chamber, including shielding from microwaves. The chamber is connected to a pressure controller for controlli... | 05/01/2001 |
| 5996248 | Freeze drying method The present invention provides methods and apparatus for freeze drying in which a solution, which can be a radioactive salt dissolved within an acid, is frozen into a solid on vertical plates provided within a freeze drying chamber. The solid is sublimate... | 12/07/1999 |
| 5688333 | Method of bulk washing and drying of discrete components A method of washing and drying of discrete components in bulk, wherein the components are washed with a cleaning liquid and the wet components are dried in a freeze-drying process by bringing the wet components to a temperature below the melting point of ... | 11/18/1997 |
| 5505007 | Method for drying structural components made of fiber reinforced plastic materials Fiber reinforced structural components, such as panels with honeycomb cores sandwiched between at least two outer skin layers are dried to remove moisture that may have entered into the interior of the structure. For this purpose the component is cooled i... | 04/09/1996 |
| 5428905 | Process for the regulation of lyophilization The invention relates to a process for the regulation of lyophilization in which the evaporative flux--that is to say, the output of evaporated water transferred on the trap (4)--is measured in a continuous manner, and action is carried out at the tempera... | 07/04/1995 |
| 5398426 | Process and apparatus for desiccation The invention relates to a process and apparatus for desiccation in which the exterior walls of the apparatus are heated and cooled in synchronization with the interior of the apparatus to avoid temperature gradients and inconsistent desiccation of materi... | 03/21/1995 |
| 5067251 | Vacuum pump with heated vapor pre-trap A heater equipped pre-trap chamber is provided at the upstream side of the inlet to a vacuum diaphragm pump so that gas products and solvent drawn from a specimen in a drying chamber can be subjected to a separation operation in the pre-trap chamber to re... | 11/26/1991 |
| 5024830 | Method for cryopreparing biological tissue for ultrastructural analysis This invention relates to apparatus for the cryopreparation of biological tissue samples for ultrastructural analysis. The use of the apparatus comprises vitrifying a biological tissue sample under cryogenic temperature conditions and ultra low vacuum con... | 06/18/1991 |
| 4865871 | Method for cryopreparing biological tissue This invention relates to apparatus for the cryopreparation of biological tissue samples. The method comprises treating a biological tissue sample with a cryoprotectant which raises the glass transition temperature range of the sample followed by vitrific... | 09/12/1989 |
| 4802286 | Method and apparatus for freeze drying In the freeze drying method of the present invention, a predetermined amount of water is poured on the refrigerating/heating surface provided in the drying chamber, which surface is cooled to a temperature below 0° C., so that an ice film is formed on th... | 02/07/1989 |
| 4612200 | Method for producing refreshable dry food A method of producing refreshable dry food comprises the step of placing unfrozen raw food in a vacuum chamber; reducing the pressure in the chamber to a value within the range 1 Torr to 5 Torr thereby reducing the temperature to a value within the range ... | 09/16/1986 |
| 4520574 | Process for drying foods under reduced pressure A process for drying a food under a reduced pressure is provided for the preparation of a dried food which may be rehydrated to the original condition in a very short time to have pleasant taste and texture substantially comparable to an untreated food. T... | 06/04/1985 |
| 4232453 | Device for freeze drying and synthetic resin impregnation when necessary of small biological objects for electron microscopic examination A tray for holding a biological specimen and a submersible container for freeze-drying the specimen are disclosed. A heating element to melt a synthetic resin for embedding the specimen is also disclosed.... | 11/11/1980 |
| 4163327 | Direct condenser defrosting system An improved defrosting means for a condenser in a freeze drying apparatus including a thermocouple for monitoring the condenser temperature during a freeze drying cycle, and an electric cartridge heater for defrosting the condenser after the freeze drying... | 08/07/1979 |
| 4033048 | Freeze drying apparatus Freeze drying apparatus in which a liquid product is sprayed into a freezing chamber to produce a frozen powder, which drops on to a multiple stage conveyor in a drying chamber under vacuum. The drying chamber is open to the freezing chamber and is also m... | 07/05/1977 |
