Patents by Inventor Cory L. Eckdahl

Cory L. Eckdahl 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).

  • Way cover improvements
    Patent number: 7341092
    Abstract: A way cover section is shaped with a continuous lateral arc by pre-stressing so that its top panel has a radius in its top panel from one side panel of the cover section to the other. A wiper at the leading edge of the cover sections that may also serve as a bumper. The wiper has an elastomeric wiper section at one end and an elastomeric bumper section at the other end, with an intermediate section of a harder and more lubricious material that fits on a rolled over edge of the cover section to which the wiper is attached.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: March 11, 2008
    Assignee: A & A Mfg. Co., Inc.
    Inventors: James D. O'Rourke, Cory L. Eckdahl