Patents by Inventor Frank Everett Sager

Frank Everett Sager 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).

  • Low voltage piezoelectric bender elements and unit cells
    Patent number: 6291930
    Abstract: The present invention is directed to a unique piezoelectric laminate composite which enables the deflection generated to provide greater work energy. The composites of the present invention are fabricated as piezoelectric bender-elements having a mechanical bias or radius of curvature. More specifically, the composite fabrication method of the present invention uses pressure and temperature to bond and anneal a plurality of layers of composite materials including a thin strip of piezoelectric material into piezoelectric bender-elements.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: September 18, 2001
    Assignee: Oceaneering International, Inc.
    Inventor: Frank Everett Sager
  • Piezoelectric circuit
    Patent number: 5892314
    Abstract: The present invention is directed to a drive circuit including a triac which acts as a gate to a storage inductor.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: April 6, 1999
    Assignees: Oceaneering International, Inc., Stress Engineering Services, Inc.
    Inventors: Frank Everett Sager, William Claude Robertson, Christopher J. Matice
  • Piezoelectric unit cell
    Patent number: 5889354
    Abstract: The present invention is directed to a piezoelectric unit cell. The piezoelectric unit cell comprises two piezoelectric mechanically biased bender-elements placed together end-to-end and held together at their ends, the two bender-elements being mechanically biased in opposite directions such that each element is in contact only at their ends.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: March 30, 1999
    Assignee: Oceaneering International Inc.
    Inventor: Frank Everett Sager
  • Piezoelectric pumps
    Patent number: 5798600
    Abstract: The present invention is directed to an electro-motional device, specifically piezoelectric pumps. More specifically, the present invention is directed to various piezoelectric pumps such as diaphragm pumps, double acting piston pumps, peristaltic pumps or centrifugal pumps.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: August 25, 1998
    Assignees: Oceaneering International, Inc., Stress Engineering Services, Inc.
    Inventors: Frank Everett Sager, Christopher J. Matice
  • Method of fabrication of piezoelectric bender elements
    Patent number: 5761782
    Abstract: A method of fabrication of piezoelectric bender-elements. More specifically, the fabrication method of the present invention uses pressure and temperature, without any adhesive, to bond and anneal a plurality of layers of piezoelectric polymer film into piezoelectric bender-elements.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: June 9, 1998
    Assignee: Oceaneering International, Inc.
    Inventor: Frank Everett Sager