利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

43 条记录 (耗时 0.038 秒)

    Methods and apparatus for particle aggregation using acoustic standing waves
    26.
    发明授权
    Methods and apparatus for particle aggregation using acoustic standing waves 有权

    公开(公告)号：US10106770B2

    公开(公告)日：2018-10-23

    申请号：US15397326

    申请日：2017-01-03

    申请人： FloDesign Sonics, Inc.

    发明人： Walter M. Presz, Jr. ,  Kedar Chitale ,  Bart Lipkens

    IPC分类号： C02F1/36 ,  C12M1/00 ,  C02F1/00 ,  B01D21/28 ,  B01D21/34 ,  B01D15/08 ,  C12N13/00 ,  B06B1/06 ,  C12M1/42 ,  C02F101/32

    摘要： Methods for generating particulate clusters and nodal trapping lines having desired widths are disclosed. The devices include an acoustic chamber having an inlet and an outlet. An ultrasonic transducer and reflector create a multi-dimensional acoustic standing wave that generates particulate clusters separated by a channel of fluid running therebetween and creates nodal trapping lines. The frequency of the multi-dimensional acoustic standing wave can be selectively tuned so as to selectively control at least one of (a) a width of each particulate cluster, or (b) a width of each channel of fluid. The frequency of the multi-dimensional acoustic standing wave can also be selectively tuned so as to selectively control the width of each nodal trapping line. Also disclosed are particulate clusters separated by a channel of fluid, wherein a ratio of the widths of the particulate clusters and the channel of fluid can be varied as desired.

    Acoustophoretic device with uniform fluid flow
    27.
    发明授权
    Acoustophoretic device with uniform fluid flow 有权

    公开(公告)号：US09827511B2

    公开(公告)日：2017-11-28

    申请号：US14791115

    申请日：2015-07-02

    申请人： FloDesign Sonics, Inc.

    发明人： Bart Lipkens ,  Brian McCarthy ,  Jason Barnes ,  Dane Mealey ,  Ben Ross-Johnsrud ,  Walter M. Presz, Jr. ,  Kedar Chitale

    IPC分类号： B01D21/28 ,  B01D21/00

    CPC分类号： B01D21/283 ,  B01D21/0045

    摘要： An acoustophoresis device which includes a substantially vertical flow path of the fluid mixture in order to improve separation of particles/secondary fluid from a primary fluid is disclosed. The vertical flow path reduces velocity non-uniformities in the acoustic chamber resulting from gravity forces. The device includes an acoustic chamber in which multidimensional acoustic standing waves are generated. The fluid can be introduced into the acoustic chamber using a dump diffuser in which a plurality of inlets enter near the bottom of the acoustic chamber such that flow symmetry reduces both, gravity driven flow non-uniformities, and any flow interference effects between inlet mixture flow into the acoustic chamber and the continuous gravity driven particle cluster drop out.