Patents by Inventor Frank J. Sienkiewicz

Frank J. Sienkiewicz 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).

  • High sensitivity fiber optic rotation sensor
    Patent number: 6718078
    Abstract: The present invention relates to a fiber optic rotation sensing device. The sensing device includes a stationary base, a rotatable member, and an optical fiber configured in at least one loop about the rotatable member. The optical fiber is secured to an exterior portion of the rotatable member and to the base. Rotation of the rotatable member causes a distortion of the at least one loop and a change in the intensity of the light passing through the optical fiber. The change in light intensity is measured to provide an indication of the degree of twist of the rotatable member.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: April 6, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Benoit G. Gauthier, Frank J. Sienkiewicz
  • HIGH SENSITIVITY FIBER OPTIC ROTATION SENSOR
    Publication number: 20040042704
    Abstract: The present invention relates to a fiber optic rotation sensing device. The sensing device includes a stationary base, a rotatable member, and an optical fiber configured in at least one loop about the rotatable member. The optical fiber is secured to an exterior portion of the rotatable member and to the base. Rotation of the rotatable member causes a distortion of the at least one loop and a change in the intensity of the light passing through the optical fiber. The change in light intensity is measured to provide an indication of the degree of twist of the rotatable member.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 4, 2004
    Inventors: Benoit G. Gauthier, Frank J. Sienkiewicz
  • Creepless snap acting bimetallic switch having flexible contact members
    Patent number: 6559752
    Abstract: A creepless snap acting bimetallic switch having flexible contact members.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: May 6, 2003
    Inventors: Frank J. Sienkiewicz, Christopher Cornell
  • Creepless snap acting bimetallic switch having step adjacent its bimetallic element
    Patent number: 6498559
    Abstract: A bimetallic switch comprising a bimetallic element having an outer edge and being adapted to snap between an open mode and a closed mode; a movable contact disposed on the bimetallic element; a first terminal in electrically conductively coupled to the movable contact; a fixed contact disposed adjacent the movable contact such that, when the switch is in a closed position, the fixed contact and the movable contact are in engagement with one another, and when the switch is in an open position, the fixed contact and the movable contact define an open contact gap therebetween; a second terminal electrically conductively coupled to the fixed contact; a step disposed adjacent the outer edge of the bimetallic element such that a clearance is defined therebetween when the bimetallic element is in its closed mode, the clearance being positioned and dimensioned such that, when the outer edge of the bimetallic element deforms prior to a snapping open thereof, the clearance isolates a deformation of the outer edge ther
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: December 24, 2002
    Inventors: Christopher Cornell, Frank J. Sienkiewicz