Patents by Inventor Carl E. Spaeder, Jr.

Carl E. Spaeder, 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).

  • Method of forming composite rolls
    Patent number: RE28868
    Abstract: A method of forming a composite roll which has a hard wear resistant shell and a tough shock resistant arbor. The shell is adhesively affixed to the arbor, thus avoiding a shrink fit which places the shell under tension. The roll is adapted for use in applications where the arbor-shell interface reaches temperatures up to 400.degree.F, and the adhesive must withstand these temperatures without breaking down. The preferred adhesive is a thermosetting epoxy material cured at an elevated temperature with an aromatic diamine.
    Type: Grant
    Filed: September 18, 1974
    Date of Patent: June 22, 1976
    Assignee: United States Steel Corporation
    Inventor: Carl E. Spaeder, Jr.