Patents by Inventor Thomas J. Daven

Thomas J. Daven 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).

  • Rotary damper assembly
    Patent number: 6953184
    Abstract: An apparatus for regulating flow of fluid received from a fluid source has an inner cylinder with inlet and outlet apertures, and an outer cylinder that also has inlet and outlet apertures. The inner cylinder is nested within the outer cylinder and rotatable with respect to the outer cylinder to control an amount of registration of the outlet apertures of the inner and outer cylinders to regulate flow of fluid through the apparatus. A motor is coupled to the inner cylinder by an axially symmetrical motor output shaft and mating recess of the inner cylinder, with crush ribs to eliminate axial play. The motor mounting arrangement is configured to mount the motor to the outer cylinder such that the motor floats within the motor mounting arrangement.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: October 11, 2005
    Assignee: Robertshaw Controls Company
    Inventors: Douglas C. Lanz, Gary R Ashurst, Thomas J. Daven
  • Rotary damper assembly
    Publication number: 20020139950
    Abstract: An apparatus for regulating flow of fluid received from a fluid source has an inner cylinder with inlet and outlet apertures, and an outer cylinder that also has inlet and outlet apertures. The inner cylinder is nested within the outer cylinder and rotatable with respect to the outer cylinder to control an amount of registration of the outlet apertures of the inner and outer cylinders to regulate flow of fluid through the apparatus. A motor is coupled to the inner cylinder by an axially symmetrical motor output shaft and mating recess of the inner cylinder, with crush ribs to eliminate axial play. The motor mounting arrangement is configured to mount the motor to the outer cylinder such that the motor floats within the motor mounting arrangement.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 3, 2002
    Applicant: ROBERTSHAW CONTROLS COMPANY
    Inventors: Douglas C. Lanz, Gary R. Ashurst, Thomas J. Daven