Patents by Inventor John M. Poker, Jr.

John M. Poker, 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).

  • Bucket cutting edge
    Patent number: 4110921
    Abstract: An improved cutting edge for use with a bucket having a front edge. The cutting edge is welded to the bucket and includes a rear portion having a hardness less than the front cutting edge portion to permit the assembly of the front and rear portions to be welded to the bucket front edge without preheating the cutting edge assembly and effecting the weldment thereto. In one form, the front portion of the cutting edge assembly is defined by a one-piece element, and in another form, the front portion includes a plurality of hardened blade elements welded to the rear portion.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: September 5, 1978
    Assignee: Caterpillar Tractor Co.
    Inventor: John M. Poker, Jr.