Millrock Technology, Inc. Patent applications |
Patent application number | Title | Published |
20150040420 | CONTROLLED NUCLEATION DURING FREEZING STEP OF FREEZE DRYING CYCLE USING PRESSURE DIFFERENTIAL WATER VAPOR CO2 ICE CRYSTALS - A method of controlling and enhancing the nucleation of product in a freeze dryer wherein a product is maintained at a predetermined temperature and pressure. A mixture of water vapor and CO | 02-12-2015 |
20140202025 | CONTROLLED NUCLEATION DURING FREEZING STEP OF FREEZE DRYING CYCLE USING PRESSURE DIFFERENTIAL ICE CRYSTALS DISTRIBUTION FROM CONDENSED FROST - A method of controlling and enhancing the nucleation of product in a freeze dryer, wherein the product is maintained at a predetermined temperature and pressure in a chamber of the freeze dryer, and a predetermined volume of condensed frost is created on an inner surface of a condenser chamber separate from the product chamber and connected thereto by a vapor port. The opening of the vapor port into the product chamber when the condenser chamber has a pressure that is greater than that of the product chamber creates gas turbulence that breaks down the condensed frost into ice crystals that rapidly enter the product chamber for even distribution therein to create uniform and rapid nucleation of the product in different areas of the product chamber. | 07-24-2014 |
20120272544 | CONTROLLED NUCLEATION DURING FREEZING STEP OF FREEZE DRYING CYCLE USING PRESSURE DIFFERENTIAL ICE FOG DISTRIBUTION - A method of controlling and enhancing the nucleation of product in a freeze dryer, wherein the product is maintained at a predetermined temperature and pressure in a chamber of the freeze dryer, and a predetermined volume of ice fog is created in a condenser chamber separate from the product chamber and connected thereto by a vapor port. The ice fog has a predetermined pressure that is greater than that of the product chamber, and is rapidly conveyed through the vapor port into the product chamber for even distribution therein to create uniform and rapid nucleation of the product in different areas of the product chamber. | 11-01-2012 |
20120192447 | Freeze drying method - A method of controlling the primary drying stage in a freeze drying apparatus having a shelf and bulk product or a number of vials in different areas on the shelf which contain product to be freeze dried. Temperature sensors are positioned in selected locations or vials which are representative of the different bulk product areas or the positions of all of the vials in different areas of the shelf. The temperature sensors are monitored and compared to determine the selected location or vial having the highest temperature while the temperature sensor therein is still in ice. The shelf temperature is controlled based on the selected location or vial with the highest temperature so long as the temperature sensor therein is still in ice. When the temperature sensor in the highest temperature selected location or vial is no longer in ice, another selected location or vial with the highest temperature and a temperature sensor therein that is still in ice is then used to control the shelf temperature. | 08-02-2012 |