Patents by Inventor David C. Nivens

David C. Nivens 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).

  • Publication number: 20240035992
    Abstract: A magnetic resonance device for monitoring growth of tissue in one or more bioreactors. The device can include a first magnet and a second magnet that can form a uniform magnetic field of desired strength around at least one sample of effluent from at least one bioreactor. At the command of a controller, an RF signal can illuminate the at least one magnetized sample, and sensors can detect at least one echo signal from the at least one magnetized sample. The controller can characterize the at least one sample based on the at least one echo signal. A resonator can shape the at least one echo signal.
    Type: Application
    Filed: October 12, 2023
    Publication date: February 1, 2024
    Inventors: David Blumberg, JR., Michael C. Tilley, Derek G. Kane, David C. Nivens
  • Publication number: 20230355951
    Abstract: A pump for treating a patient is disclosed that includes a spring-biased plunger biased toward actuation against a tube; a cam shaft configured to actuate the spring-based plunger; a lever actuatable between a closed position and an open position; a shaft coupled to the lever, the shaft having a central axis centrally along the length of the shaft, the shaft coupled to the lever to rotate around the central axis in accordance with actuation of the lever; and a lift cam pivotally coupled to the shaft, wherein the lift cam pivots around a lift cam axis, the lift cam axis of the lift cam is parallel to the central axis of the shaft, and the lift cam engages with the spring-based plunger to lift the spring-biased plunger off of the cam shaft as the shaft rotates in accordance with actuating the lever to the open position.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 9, 2023
    Inventors: Michael J. Baier, David Blumberg, JR., Hugh J. Boddington, Thomas A. Friedrich, Paul G. Girouard, Larry B. Gray, David C. Nivens
  • Patent number: 11788979
    Abstract: A magnetic resonance device for monitoring growth of tissue in one or more bioreactors. The device can include a first magnet and a second magnet that can form a uniform magnetic field of desired strength around at least one sample of effluent from at least one bioreactor. At the command of a controller, an RF signal can illuminate the at least one magnetized sample, and sensors can detect at least one echo signal from the at least one magnetized sample. The controller can characterize the at least one sample based on the at least one echo signal. A resonator can shape the at least one echo signal.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: October 17, 2023
    Assignee: DEKA Products Limited Partnership
    Inventors: David Blumberg, Jr., Michael C. Tilley, Derek G. Kane, David C. Nivens
  • Publication number: 20230285662
    Abstract: A pump for treating a patient is disclosed that includes a plunger transitionable between a first position and a second position, wherein when a tube is loaded within the pump, the plunger applying a force against the tube when in the second position; a cam shaft configured to actuate the plunger to transition the plunger from the first position to the second position; a motor coupled to the cam shaft; a heatsink to dissipate heat from the motor, the heatsink including a first part and a second part; and a housing containing at least a portion of the plunger, the cam shaft, the motor and the heatsink, the first part of the heatsink extending through a surface of the housing, the second part is thermally in contact with the motor, and the first and second parts of the heatsink are movable relative to one another to define an adjustable length.
    Type: Application
    Filed: May 18, 2023
    Publication date: September 14, 2023
    Inventors: Michael J. Baier, David Blumberg, JR., Hugh J. Boddington, Thomas A. Friedrich, Paul G. Girouard, Larry B. Gray, David C. Nivens
  • Patent number: 11707615
    Abstract: A pump for treating a patient is disclosed that includes a spring-biased plunger biased toward actuation against a tube; a cam shaft configured to actuate the spring-based plunger; a lever actuatable between a closed position and an open position; a shaft coupled to the lever, the shaft having a central axis centrally along the length of the shaft, the shaft coupled to the lever to rotate around the central axis in accordance with actuation of the lever; and a lift cam pivotally coupled to the shaft, wherein the lift cam pivots around a lift cam axis, the lift cam axis of the lift cam is parallel to the central axis of the shaft, and the lift cam engages with the spring-based plunger to lift the spring-biased plunger off of the cam shaft as the shaft rotates in accordance with actuating the lever to the open position.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: July 25, 2023
    Assignee: DEKA Products Limited Partnership
    Inventors: Michael J. Baier, David Blumberg, Jr., Hugh J. Boddington, Thomas A. Friedrich, Paul G. Girouard, Larry B. Gray, David C. Nivens
  • Publication number: 20220003700
    Abstract: A magnetic resonance device for monitoring growth of tissue in one or more bioreactors. The device can include a first magnet and a second magnet that can form a uniform magnetic field of desired strength around at least one sample of effluent from at least one bioreactor. At the command of a controller, an RF signal can illuminate the at least one magnetized sample, and sensors can detect at least one echo signal from the at least one magnetized sample. The controller can characterize the at least one sample based on the at least one echo signal. A resonator can shape the at least one echo signal.
    Type: Application
    Filed: September 15, 2021
    Publication date: January 6, 2022
    Inventors: David Blumberg, JR., Michael C. Tilley, Derek G. Kane, David C. Nivens
  • Patent number: 11125706
    Abstract: A magnetic resonance device for monitoring growth of tissue in one or more bioreactors. The device can include a first magnet and a second magnet that can form a uniform magnetic field of desired strength around at least one sample of effluent from at least one bioreactor. At the command of a controller, an RF signal can illuminate the at least one magnetized sample, and sensors can detect at least one echo signal from the at least one magnetized sample. The controller can characterize the at least one sample based on the at least one echo signal. A resonator can shape the at least one echo signal.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: September 21, 2021
    Assignee: DEKA Products Limited Partnership
    Inventors: David Blumberg, Jr., Michael C. Tilley, Derek G. Kane, David C. Nivens
  • Publication number: 20200284740
    Abstract: A magnetic resonance device for monitoring growth of tissue in one or more bioreactors. The device can include a first magnet and a second magnet that can form a uniform magnetic field of desired strength around at least one sample of effluent from at least one bioreactor. At the command of a controller, an RF signal can illuminate the at least one magnetized sample, and sensors can detect at least one echo signal from the at least one magnetized sample. The controller can characterize the at least one sample based on the at least one echo signal. A resonator can shape the at least one echo signal.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Inventors: David Blumberg, JR., Michael C. Tilley, Derek G. Kane, David C. Nivens
  • Patent number: 10663417
    Abstract: A magnetic resonance device for monitoring growth of tissue in one or more bioreactors. The device can include a first magnet and a second magnet that can form a uniform magnetic field of desired strength around at least one sample of effluent from at least one bioreactor. At the command of a controller, an RF signal can illuminate the at least one magnetized sample, and sensors can detect at least one echo signal from the at least one magnetized sample. The controller can characterize the at least one sample based on the at least one echo signal. A resonator can shape the at least one echo signal.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: May 26, 2020
    Assignee: DEKA Products Limited Partnership
    Inventors: David Blumberg, Jr., Michael C. Tilley, Derek G. Kane, David C. Nivens
  • Publication number: 20200054823
    Abstract: A pump for treating a patient is disclosed that includes a spring-biased plunger biased toward actuation against a tube; a cam shaft configured to actuate the spring-based plunger; a lever actuatable between a closed position and an open position; a shaft coupled to the lever, the shaft having a central axis centrally along the length of the shaft, the shaft coupled to the lever to rotate around the central axis in accordance with actuation of the lever; and a lift cam pivotally coupled to the shaft, wherein the lift cam pivots around a lift cam axis, the lift cam axis of the lift cam is parallel to the central axis of the shaft, and the lift cam engages with the spring-based plunger to lift the spring-biased plunger off of the cam shaft as the shaft rotates in accordance with actuating the lever to the open position.
    Type: Application
    Filed: August 16, 2019
    Publication date: February 20, 2020
    Inventors: Michael J. Baier, David Blumberg, JR., Hugh J. Boddington, Thomas A. Friedrich, Paul G. Girouard, Larry B. Gray, David C. Nivens
  • Publication number: 20190170672
    Abstract: A magnetic resonance device for monitoring growth of tissue in one or more bioreactors. The device can include a first magnet and a second magnet that can form a uniform magnetic field of desired strength around at least one sample of effluent from at least one bioreactor. At the command of a controller, an RF signal can illuminate the at least one magnetized sample, and sensors can detect at least one echo signal from the at least one magnetized sample. The controller can characterize the at least one sample based on the at least one echo signal. A resonator can shape the at least one echo signal.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Inventors: David Blumberg, JR., Michael C. Tilley, Derek G. Kane, David C. Nivens