Patents by Inventor Mark A. Guelta

Mark A. Guelta 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).

  • Method for measuring the efficiency of gas mask filters
    Patent number: 5059348
    Abstract: An improved process of passing an aerosol mixture through a filter. The asol is generated by nebulization of the mixture prior to penetration of the filter. The aerosol mixture being in %, by volume, of about:______________________________________ % Chemical ______________________________________ 70-76 isostearic acid 6-7 isopalmitic acid 7-11 myristic acid 4-5 palmitic acid.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: October 22, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Mark A. Guelta, Hugh R. Carlon
  • Method of testing the efficiency of gas mask filters using poly-alpha olefin aerosol mixtures
    Patent number: 5059350
    Abstract: An improved process of passing an aerosol mixture through a filter. The asol mixture solely being a poly alpha olefin having a content of hydrocarbon % by volume of:______________________________________ % Carbon atoms, chain length ______________________________________ A. 30.9 30 B. 42.8 40 C. 20.4 50 D. 4.8 60 E. 1.1 70.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: October 22, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Hugh R. Carlon, Mark A. Guelta, Bernard V. Gerber