Patents Assigned to Stress Engineering Services, Inc.
  • Fatigue monitoring
    Patent number: 8725429
    Abstract: A method and system are provided to reconstruct vibration responses such as stress and fatigue damage at desired locations in a structure from a limited number of vibration measurements at a few locations in the structure. Vibration response measurements can be of any type, e.g. acceleration, angular velocity, strain, etc. The desired locations can be anywhere within the domain of the structure and may include the entire structural domain. Measured vibration responses may be of uniform type or combinations of different types.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: May 13, 2014
    Assignee: Stress Engineering Services, Inc.
    Inventors: Scot McNeill, Puneet Agarwal
  • Fatigue Monitoring
    Publication number: 20120303293
    Abstract: A method and system are provided to reconstruct vibration responses such as stress and fatigue damage at desired locations in a structure from a limited number of vibration measurements at a few locations in the structure. Vibration response measurements can be of any type, e.g. acceleration, angular velocity, strain, etc. The desired locations can be anywhere within the domain of the structure and may include the entire structural domain. Measured vibration responses may be of uniform type or combinations of different types.
    Type: Application
    Filed: August 30, 2011
    Publication date: November 29, 2012
    Applicant: Stress Engineering Services, Inc
    Inventors: Scot McNeill, Puneet Agarwal
  • 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
  • System and method for inspecting a cast structure
    Patent number: 5822057
    Abstract: An inspection system and method of the type for visually inspecting the interior of a cast structure is provided. The inspection system includes: an elongated member embedded in a cast structure during casting forming a bore in the structure, an illumination source insertable into the bore via a fiber optic cable, an imaging mechanism insertable into the bore via a fiber optic cable, and a monitoring mechanism for viewing an image transmitted from the imaging mechanism via the fiber optic cable. The elongated member may be removable from the structure forming a bore defined by the structure.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: October 13, 1998
    Assignee: Stress Engineering Services, Inc.
    Inventor: Mahmod M. Samman
  • 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