Patents by Inventor Dan B. Herrera

Dan B. Herrera 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).

  • Safety brake mechanism
    Patent number: 4263840
    Abstract: An improved spring guide incorporating a collapsible telescoping sleeve assembly is used in conjunction with a conventional fluid pressure operated brake of the type having a safety brake mechanism which employs a spring powered brake actuator for automatic activation of the safety brake in case of an emergency or a pneumatic failure.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: April 28, 1981
    Assignee: Stratobrake Corporation
    Inventor: Dan B. Herrera