Patents by Inventor GRANT KARSTEN

GRANT KARSTEN 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).

  • Syringe Plunger Engagement Mechanism
    Publication number: 20240148981
    Abstract: A fluid injector system has at least one reciprocally operable piston having a piston head, and a plunger engagement mechanism associated with the piston head. The plunger engagement mechanism has a cam sleeve disposed within the piston head and movable relative to the piston head, the cam sleeve having one or more tracks defining a cam surface. The plunger engagement mechanism further has an actuator operatively connected to the cam sleeve for moving the cam sleeve relative to the piston head, and one or more pins disposed within the cam sleeve. The one or more pins are movable within the one or more tracks with movement of the cam sleeve between a first or withdrawn position, wherein the one or more pins are radially withdrawn into the piston head and a second or extended position, wherein the one or more pins protrude radially outward relative to an outer surface of the piston head.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Inventors: Shahab Taheri, Timothy Newing, Grant Karsten, Aiden Salm, Han Min Thu
  • Syringe plunger engagement mechanism
    Patent number: 11883636
    Abstract: A fluid injector system has at least one reciprocally operable piston having a piston head, and a plunger engagement mechanism associated with the piston head. The plunger engagement mechanism has a cam sleeve disposed within the piston head and movable relative to the piston head, the cam sleeve having one or more tracks defining a cam surface. The plunger engagement mechanism further has an actuator operatively connected to the cam sleeve for moving the cam sleeve relative to the piston head, and one or more pins disposed within the cam sleeve. The one or more pins are movable within the one or more tracks with movement of the cam sleeve between a first or withdrawn position, wherein the one or more pins are radially withdrawn into the piston head and a second or extended position, wherein the one or more pins protrude radially outward relative to an outer surface of the piston head.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: January 30, 2024
    Assignee: BAYER HEALTHCARE LLC
    Inventors: Shahab Taheri, Timothy Newing, Grant Karsten, Aiden Salm, Han Min Thu
  • Syringe Plunger Engagement Mechanism
    Publication number: 20200405972
    Abstract: A fluid injector system has at least one reciprocally operable piston having a piston head, and a plunger engagement mechanism associated with the piston head. The plunger engagement mechanism has a cam sleeve disposed within the piston head and movable relative to the piston head, the cam sleeve having one or more tracks defining a cam surface. The plunger engagement mechanism further has an actuator operatively connected to the cam sleeve for moving the cam sleeve relative to the piston head, and one or more pins disposed within the cam sleeve. The one or more pins are movable within the one or more tracks with movement of the cam sleeve between a first or withdrawn position, wherein the one or more pins are radially withdrawn into the piston head and a second or extended position, wherein the one or more pins protrude radially outward relative to an outer surface of the piston head.
    Type: Application
    Filed: February 25, 2019
    Publication date: December 31, 2020
    Inventors: SHAHAB TAHERI, TIMOTHY NEWING, GRANT KARSTEN, AIDEN SALM, HAN MIN THU