Patents by Inventor Walter E. Lohmann, Jr.

Walter E. Lohmann, Jr. 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).

  • Fatigue analysis and warning system
    Patent number: 5531122
    Abstract: In the field of large construction and mining equipment, significant frame stresses considerably shorten the expected operating life of a machine. This invention provides indications of significant frame stresses on machines having a ground engaging portion, a frame connected to the ground engaging portion, and a plurality of pressure sensing devices. Each of the pressure sensing devices are adapted to produce pressure signals indicative of loads imparted on the frame. The pressure signals are processed to produce frame stress data.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: July 2, 1996
    Assignee: Caterpillar Inc.
    Inventors: Michael D. Chatham, Paul D. Fotsch, Doyle G. Heyveld, Edward P. Kelley, Walter E. Lohmann, Jr., David R. Roley, Charles F. Sieck, David G. Young