Manipulation of particles
Patent 4743361 Issued on May 10, 1988. Estimated Expiration Date: 
June 20, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 20, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2300761 3826740 Apparatus and method for removing fine particles from a liquid medium by ultrasonic waves Method and apparatus for fluid sample injection for fluid chromatography Method and apparatus for sonic separation and analysis of components of a fluid mixture Acoustic particle separation Particle separation Patent #: 4673512 InventorAssigneeApplicationNo. 06/751736 filed on 06/20/1985US Classes:209/1, MISCELLANEOUS209/155, Liquid209/158, Vertical current210/243, ELECTRICAL INSULATING OR ELECTRICITY DISCHARGING210/748Utilizing electrical or wave energy (directly applied to liquid or material being treated)ExaminersPrimary: Reeves, Robert B.Assistant: Hajec, Donald T. Attorney, Agent or FirmInternational ClassesC12Q 1/02 (20060101)C12Q 1/24 (20060101) C12N 13/00 (20060101) A61M 1/36 (20060101) B01D 43/00 (20060101) B01D 15/08 (20060101) B01D 21/00 (20060101) B03B 1/00 (20060101) G01N 15/02 (20060101) G01N 30/00 (20060101) G01N 30/02 (20060101) Foreign Application Priority Data1983-10-31 GBAbstractSeparation of particles types from a mixed population of particles in a liquid is obtained in an ultrasonic wave produced by interference between the outputs from spaced ultrasonic sources (115,118). One or more selected particle types may be separated by displacement axially along the standing wave or may be carried transversely through the standing wave or by combining both methods. The described separation can be achieved by control of flow of the liquid or giving the standing wave a drift, or by controlling the intensity or the frequency of the standing wave or by any combination of these factors. The preferred ultrasonic frequency range is between 100 kHz and 100 MHz. The process is particularly suitable for the separation of biological particles, from macromolecules to plant cells.Other References
| |
