Patents by Inventor Robert L. Mantha

Robert L. Mantha 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).

  • Illuminated safety helmet
    Patent number: 5743621
    Abstract: An illuminated safety helmet includes a pair of LED modules that are mounted at the front and back of the helmet and arranged in an electrical circuit with an on-board battery. The helmet has a chin strap fitted with snap together connectors which when joined operator to secure the helmet on the user's head. A pair of electrical contacts are incorporated into the connectors and operate as a switch which closes and opens the circuit, respectively, with the engagement and disengagement of the connectors.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: April 28, 1998
    Inventors: Robert L. Mantha, Robert Colaizzi