Patents by Inventor Leroy H. Favrow

Leroy H. Favrow 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).

  • Acoustic method and apparatus for fracture detection of ball bearings
    Patent number: 7779691
    Abstract: A method for testing ball bearings includes applying a Hertzian contact stress on a ball bearing to provide a fracture of the ball bearing that releases acoustic energy, establishing a signal representing the acoustic energy, and identifying occurrence of the fracture based upon the signal.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: August 24, 2010
    Assignee: United Technologies Corporation
    Inventors: Anindya Ghoshal, Ronald I. Holland, Herbert A. Chin, James L. Ambler, Leroy H. Favrow, Lucy M. Favrow, legal representative, David A. Haluck
  • ACOUSTIC METHOD AND APPARATUS FOR FRACTURE DETECTION OF BALL BEARINGS
    Publication number: 20090095083
    Abstract: A method for testing ball bearings includes applying a Hertzian contact stress on a ball bearing to provide a fracture of the ball bearing that releases acoustic energy, establishing a signal representing the acoustic energy, and identifying occurrence of the fracture based upon the signal.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 16, 2009
    Inventors: Anindya Ghoshal, Ronald I. Holland, Herbert A. Chin, James L. Ambler, Leroy H. Favrow, Lucy M. Farrow, David A. Haluck
  • Load bearing member for use in an elevator system having external markings for indicating a condition of the assembly
    Patent number: 7117981
    Abstract: A load bearing assembly in an elevator system includes a plurality of discernable markings on an external surface of the assembly. A monitoring device includes at least one detector that detects locations of the markings along the length of the assembly. Changes in spacing between markings provides an indication of belt loading conditions and provides an ability to determine a condition of the belt relative to whether a replacement of the belt may be necessary. A variety of markings and a variety of detecting arrangements are disclosed.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 10, 2006
    Assignee: Otis Elevator Company
    Inventors: Douglas E. Logan, Leroy H. Favrow, Robert J. Haas, Paul A. Stucky, Neil R. Baldwin
  • LOAD BEARING MEMBER FOR USE IN AN ELEVATOR SYSTEM HAVING EXTERNAL MARKINGS FOR INDICATING A CONDITION OF THE ASSEMBLY
    Publication number: 20030111298
    Abstract: A load bearing assembly in an elevator system includes a plurality of discernable markings on an external surface of the assembly. A monitoring device includes at least one detector that detects locations of the markings along the length of the assembly. Changes in spacing between markings provides an indication of belt loading conditions and provides an ability to determine a condition of the belt relative to whether a replacement of the belt may be necessary. A variety of markings and a variety of detecting arrangements are disclosed.
    Type: Application
    Filed: December 19, 2001
    Publication date: June 19, 2003
    Inventors: Douglas E. Logan, Leroy H. Favrow, Robert J. Haas, Paul A. Stucky, Neil R. Baldwin
  • Flexible flat tension member termination device
    Patent number: 6513204
    Abstract: A termination device for terminating a flexible flat tension member includes a socket and two opposing wedges mounted therein. One of the wedges is preferably pinned within the socket while the other wedge is removable. The invention provides a reliable termination with a safety back-up to retain the tension member even if friction in the device is reduced due to soiling with a friction reducing material.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: February 4, 2003
    Assignee: Otis Elevator Company
    Inventors: James A. Rivera, Richard J. Ericson, Leroy H. Favrow, John Wesson
  • Flexible flat tension member termination device
    Patent number: 6484368
    Abstract: A termination device for terminating a flexible flat tension member includes a socket and two opposing wedges mounted therein. One of the wedges is preferably pinned within the socket while the other wedge is removable. The invention provides a reliable termination with a safety back-up to retain the tension member even if friction in the device is reduced due to soiling with a friction reducing material.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: November 26, 2002
    Assignee: Otis Elevator Company
    Inventors: James A. Rivera, Richard J. Ericson, Leroy H. Favrow, John Wesson
  • Flexible flat tension member termination device
    Publication number: 20020042973
    Abstract: A termination device for terminating a flexible flat tension member includes a socket and two opposing wedges mounted therein. One of the wedges is preferably pinned within the socket while the other wedge is removable. The invention provides a reliable termination with a safety back-up to retain the tension member even if friction in the device is reduced due to soiling with a friction reducing material.
    Type: Application
    Filed: December 18, 2001
    Publication date: April 18, 2002
    Inventors: James A. Rivera, Richard J. Ericson, Leroy H. Favrow, John Wesson
  • Crack monitoring apparatus
    Patent number: 5673203
    Abstract: An apparatus for monitoring the growth of surface cracks in materials includes a means for applying a load to a specimen to simulate actual use of the specimen, means for illuminating the specimen, means for capturing images of the specimen, and means for processing the images to monitor crack growth in the specimen. Optionally, the means for processing can be used to control the other means.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: September 30, 1997
    Assignee: United Technologies Corporation
    Inventors: Balkrishna S. Annigeri, Leroy H. Favrow, Robert J. Haas, Michael Winter, Ronald I. Holland, Jr., Jason S. Wegge, David M. Sanford
  • Crack monitoring apparatus
    Patent number: 5539656
    Abstract: An apparatus for monitoring the growth of surface cracks in materials includes a means for applying a load to a specimen to simulate actual use of the specimen, means for illuminating the specimen, means for capturing images of the specimen, and means for processing the images to monitor crack growth in the specimen. Optionally, the means for processing can be used to control the other means.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: July 23, 1996
    Assignee: United Technologies Corporation
    Inventors: Balkrishna S. Annigeri, Leroy H. Favrow, Robert J. Haas, Michael Winter, Ronald I. Holland, Jr., Jason S. Wegge, David M. Sanford
  • High temperature crack monitoring apparatus
    Patent number: 5517861
    Abstract: An apparatus for monitoring the growth of surface cracks in materials includes a servo-hydraulic test machine which applies a load to a specimen according to a predetermined loading regime designed to induce crack growth in the specimen, a UV laser for illuminating the specimen with a light having a frequency greater than the frequency of incandescent light, a UV video camera and a two dimensional imaging computer. Optionally, the two dimensional imaging computer can be used to control the servo-hydraulic test machine.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: May 21, 1996
    Assignee: United Technologies Corporation
    Inventors: Robert J. Haas, Michael Winter, Balkrishna S. Annigeri, Leroy H. Favrow, Jason S. Wegge