Patents by Inventor William C. Perry

William C. Perry 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).

  • Patent number: 6457268
    Abstract: A protection assembly for protecting the base edge and an attached cutting edge of a bucket or other implement of a work machine. The protection assembly is readily attachable and detachable to buckets having both new and worn base and cutting edges when the use of teeth is required for excavating, especially in hard packed virgin soil. The protection assembly includes a digging plate and a cover plate that form an elongated edge recess for receiving the base and cutting edges of the bucket. Positioning devices are provided on the bucket and the protection assembly to consistently position the protection system at the same location on the bucket regardless of the amount of wear on the base and cutting edges. The positioning devices prevent movement of the protection system relative to the bucket when the bucket is used for excavating.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: October 1, 2002
    Assignee: Caterpillar Inc
    Inventors: William C. Perry, William J. Renski
  • Publication number: 20020078607
    Abstract: A protection assembly for protecting the base edge and an attached cutting edge of a bucket or other implement of a work machine. The protection assembly is readily attachable and detachable to buckets having both new and worn base and cutting edges when the use of teeth is required for excavating, especially in hard packed virgin soil. The protection assembly includes a digging plate and a cover plate that form an elongated edge recess for receiving the base and cutting edges of the bucket. Positioning devices are provided on the bucket and the protection assembly to consistently position the protection system at the same location on the bucket regardless of the amount of wear on the base and cutting edges. The positioning devices prevent movement of the protection system relative to the bucket when the bucket is used for excavating.
    Type: Application
    Filed: December 22, 2000
    Publication date: June 27, 2002
    Inventors: William C. Perry, William J. Renski