Patents by Inventor Keith T. Handa

Keith T. Handa 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).

  • Controlling of multiple pumps
    Patent number: 9133835
    Abstract: An apparatus for controlling vacuum pressure is provided. The apparatus includes a multiple axis controller, such as a dual axis footpedal, and a processing apparatus, such as an instrument host running software, configured to receive multiple axis data from the multiple axis controller. The apparatus also includes a first pump configured to provide nonzero fluid pressure at a first nonzero fluid pressure level based on a first axis state of the multiple axis controller and a second pump configured to provide nonzero fluid pressure at a second nonzero fluid pressure level based on a second axis state of the multiple axis controller. The processing apparatus causes switching between the first pump and the second pump based on the first axis state and the second axis state of the multiple axis controller.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: September 15, 2015
    Assignee: Abbott Medical Optics Inc.
    Inventors: Wayne Wong, Dan A Peters, Timothy Hunter, William J Ade, Keith T Handa
  • Controlling of multiple pumps
    Patent number: 8409155
    Abstract: An apparatus for controlling vacuum pressure is provided. The apparatus includes a multiple axis controller, such as a dual axis footpedal, and a processing apparatus, such as an instrument host running software, configured to receive multiple axis data from the multiple axis controller. The apparatus also includes a first pump configured to provide nonzero fluid pressure at a first nonzero fluid pressure level based on a first axis state of the multiple axis controller and a second pump configured to provide nonzero fluid pressure at a second nonzero fluid pressure level based on a second axis state of the multiple axis controller. The processing apparatus causes switching between the first pump and the second pump based on the first axis state and the second axis state of the multiple axis controller.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: April 2, 2013
    Assignee: Abbott Medical Optics Inc.
    Inventors: Wayne Wong, Dan A Peters, Timothy Hunter, William J Ade, Keith T Handa
  • CONTROLLING OF MULTIPLE PUMPS
    Publication number: 20110092924
    Abstract: An apparatus for controlling vacuum pressure is provided. The apparatus includes a multiple axis controller, such as a dual axis footpedal, and a processing apparatus, such as an instrument host running software, configured to receive multiple axis data from the multiple axis controller. The apparatus also includes a first pump configured to provide nonzero fluid pressure at a first nonzero fluid pressure level based on a first axis state of the multiple axis controller and a second pump configured to provide nonzero fluid pressure at a second nonzero fluid pressure level based on a second axis state of the multiple axis controller. The processing apparatus causes switching between the first pump and the second pump based on the first axis state and the second axis state of the multiple axis controller.
    Type: Application
    Filed: November 6, 2009
    Publication date: April 21, 2011
    Applicant: Abbott Medical Optics Inc.
    Inventors: Wayne Wong, Dan A. Peters, Timothy Hunter, William J. Ade, Keith T. Handa