Patents by Inventor Marco K. KWAN

Marco K. KWAN 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).

  • Non-rotating flexure bearings for cryocoolers and other devices
    Patent number: 9285073
    Abstract: A system includes a device, a support structure, and a flexure bearing configured to connect the device to the support structure. The flexure bearing includes an outer hub and an inner hub, where the hubs are configured to be secured to the support structure and to the device. The flexure bearing also includes multiple sets of flexure arms connecting the outer and inner hubs. Each set of flexure arms includes symmetric flexure arms. The flexure bearing could include three sets of flexure arms positioned radially around a central axis of the flexure bearing and having a spacing of about 120°. Each flexure arm can follow a substantially curved path between the outer hub and the inner hub. The symmetric flexure arms in each set can be configured such that twisting of one flexure arm in one set is substantially counteracted by twisting of another flexure arm in that set.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: March 15, 2016
    Assignee: Raytheon Company
    Inventors: Michael J. Ellis, Lowell A. Bellis, Brian R. Schaefer, Robert D. Schaefer, Marco K. Kwan
  • NON-ROTATING FLEXURE BEARINGS FOR CRYOCOOLERS AND OTHER DEVICES
    Publication number: 20150041619
    Abstract: A system includes a device, a support structure, and a flexure bearing configured to connect the device to the support structure. The flexure bearing includes an outer hub and an inner hub, where the hubs are configured to be secured to the support structure and to the device. The flexure bearing also includes multiple sets of flexure arms connecting the outer and inner hubs. Each set of flexure arms includes symmetric flexure arms. The flexure bearing could include three sets of flexure arms positioned radially around a central axis of the flexure bearing and having a spacing of about 120°. Each flexure arm can follow a substantially curved path between the outer hub and the inner hub. The symmetric flexure arms in each set can be configured such that twisting of one flexure arm in one set is substantially counteracted by twisting of another flexure arm in that set.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 12, 2015
    Applicant: Raytheon Company
    Inventors: Michael J. ELLIS, Lowell A. BELLIS, Brian R. SCHAEFER, Robert D. SCHAEFER, Marco K. KWAN