Patents by Inventor Daniel S. Sutton

Daniel S. Sutton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Centrifuge system including a control circuit that controls positive back pressure within the centrifuge core
    Patent number: 10384216
    Abstract: A method and apparatus for separating cell suspension into centrate and concentrate includes a solid wall rotatable centrifuge bowl (82). A single use rotatable core (88) is positioned in the bowl and bounds a cavity (90) which serves as a separation chamber. The bowl rotates about an axis (84). An inlet tube (92) and an outlet tube (102) extend along the axis in the bowl cavity. The centripetal pump (98) in the cavity is in connection with the outlet tube. The centrate discharge pump (120) is in connection with the outlet tube. A pressure damping reservoir (122) is fluidly connected between the outlet tube and the discharge pump. At least one control circuit (142) is operative to control the apparatus to maintain a positive pressure above atmospheric pressure within the cavity, so as to maintain the cell suspension away from at least one seal (106) that bounds the interior of the cavity.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 20, 2019
    Assignee: Pneumatic Scale Corporation
    Inventors: Daniel S. Sutton, Stephen B Kessler, T David Marro
  • Centrifuge system including a control circuit that controls positive back pressure within the centrifuge core
    Patent number: 10040077
    Abstract: A method and apparatus for separating cell suspension into centrate and concentrate includes a solid wall rotatable centrifuge bowl (82). A single use rotatable core (88) is positioned in the bowl and bounds a cavity (90) which serves as a separation chamber. The bowl rotates about an axis (84). An inlet tube (92) and an outlet tube (102) extend along the axis in the bowl cavity. The centripetal pump (98) in the cavity is in connection with the outlet tube. The centrate discharge pump (120) is in connection with the outlet tube. A pressure damping reservoir (122) is fluidly connected between the outlet tube and the discharge pump. At least one control circuit (142) is operative to control the apparatus to maintain a positive pressure above atmospheric pressure within the cavity, so as to maintain the cell suspension away from at least one seal (106) that bounds the interior of the cavity.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: August 7, 2018
    Assignee: PNEUMATIC SCALE CORPORATION
    Inventor: Daniel S. Sutton