Patents by Inventor David R. Guldin

David R. Guldin 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).

  • Brake shoe and head assembly
    Patent number: 4000792
    Abstract: This invention relates to a brake shoe and brake head assembly wherein a brake head for carrying one type of brake shoe may be modified to enable securing thereto and removing therefrom other types of brake shoes without removing the brake head from a brake lever on which the brake head is pivotally mounted.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: January 4, 1977
    Assignee: Westinghouse Air Brake Company
    Inventor: David R. Guldin