Patents by Inventor Marc Schuman

Marc Schuman 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).

  • Patent number: 10335188
    Abstract: Drive shafts having helical blades and methods of making are disclosed. In one method a helical auger blade is formed by twisting or sculpting a heated polymer tube which has been placed over a cylindrical drive shaft. In another method a drive shaft is placed within a helical winding and heat is applied to melt polymer which has been coated over one or both of the drive shaft and helical winding.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: July 2, 2019
    Assignee: Covidien LP
    Inventors: Jenny Zeroni, Cory David Sills, Victoria Schuman, Marc D. Knutson, Bryan Matthew Ladd, Benjamin Robert Fruland, Lucas Schneider, Alexander J. Rice
  • Patent number: 6961506
    Abstract: One aspect is a method for controllably attenuating the beam of light (108) coupled between incoming and outgoing optical fibers (106) by misaligning minor surfaces (116a, 116b) included of an optical switching module (100). Misalignment of the mirror surfaces (116a and 116b) causes only a portion of the beam of light (108) propagating along the incoming optical fiber (106), which is less than when the light beam deflectors' mirror surfaces (116) are precisely aligned, to propagate along the outgoing optical fiber (108). Thus, the optical switching module (100) controllably attenuates the beam of light (108) coupled between the incoming and the outgoing optical fibers (106). Another aspect is a variable-optical-attenuator (“VOA”) (212) that includes an optically reflective membrane (222) upon which the beam of light (108) impinges. Application of an electrostatic field between an adjacent electrode (228) and the membrane (222) deforms the membrane (222) thereby attenuating an impinging beam of light (108).
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 1, 2005
    Inventors: Armand P. Neukermans, Rajiv Ramaswami, John F. Heanue, Brian P. Tremaine, Marc Schuman
  • Publication number: 20030223726
    Abstract: One aspect is a method for controllably attenuating the beam of light (108) coupled between incoming and outgoing optical fibers (106) by misaligning minor surfaces (116a, 116b) included of an optical switching module (100). Misalignment of the mirror surfaces (116a and 116b) causes only a portion of the beam of light (108) propagating along the incoming optical fiber (106), which is less than when the light beam deflectors' mirror surfaces (116) are precisely aligned, to propagate along the outgoing optical fiber (108). Thus, the optical switching module (100) controllably attenuates the beam of light (108) coupled between the incoming and the outgoing optical fibers (106). Another aspect is a variable-optical-attenuator (“VOA”) (212) that includes an optically reflective membrane (222) upon which the beam of light (108) impinges.
    Type: Application
    Filed: September 14, 2002
    Publication date: December 4, 2003
    Inventors: Armand P. Neukermans, Rajiv Ramaswami, John F. Heanue, Brian P. Tremaine, Marc Schuman
  • Patent number: 5441343
    Abstract: The scanning thermal probe microscope measures a thermal parameter such as thermal conductivity or temperature of surface contours of a specimen with a thermal sensor maintained in thermal communication with the surface of the specimen and maintained at a temperature different than that of the specimen. The thermal sensor is disposed on the free end of a cantilever arm in thermal communication with the probe. A thermal feedback bridge circuit can maintain the thermal sensor at a constant temperature by heating or cooling the sensor, and provides a signal for determining the heat transfer between the probe and the specimen. The cantilever arm includes first and second legs of electrically conductive material, and the thermal sensor comprises a narrowed portion of the conducting material having a relatively high temperature coefficient of resistance.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: August 15, 1995
    Assignee: Topometrix Corporation
    Inventors: Russell J. Pylkki, Marc Schuman, Paul E. West