Patents by Inventor M. John Michel

M. John Michel 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).

  • Air purifying respirator suspension
    Patent number: 5181507
    Abstract: A respirator suspension system is disclosed. A face mask for covering the mouth and nasal passages of the user has a peripheral sealing portion for establishing a seal with the user's face and filter cartridges disposed in air inlet passage on either side of the face mask. The cartridges are provided with guide fittings and guide surfaces for support and guiding of a single adjusting strap which interconnects a crown support with the face mask. In accordance with the disclosure, the crown support comprises a first precurved member extending over the top of the head of the user and a second precurved member integrally joined to the first which fits around the back of the head of the user.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: January 26, 1993
    Assignee: WGM Safety Corp.
    Inventors: M. John Michel, Frederick D. Snyder, Venkateswara R. Emany