Patents by Inventor Rudolph Schmidt

Rudolph Schmidt 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 making toothed lock washers
    Patent number: 3988796
    Abstract: A method of making toothed lock washers from sheet material wherein the lock washer bodies are blanked from the sheet material with adjacent outline configurations of the lock washers in close proximity within the sheet material, whereby the unused portions of sheet material between the outline configurations is minimized and sheet material is conserved.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: November 2, 1976
    Assignee: Triangle Tool Company
    Inventor: Rudolph Schmidt