Patents by Inventor Thad M. Hasbrouck

Thad M. Hasbrouck 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).

  • Gate valve fabricated from pipe
    Patent number: 4081175
    Abstract: A gate valve for a large diameter conduit that is fabricated to a great extent from standard structural shapes to avoid the need for expensive patterns and castings and associated machining requirements.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: March 28, 1978
    Assignee: United Technologies Corporation
    Inventor: Thad M. Hasbrouck