Patents by Inventor Douglas W. Dittmann

Douglas W. Dittmann 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).

  • Patent number: 7481234
    Abstract: A family protective shelter which can be erected quickly inside in a home living room, family room, patio, or on an outside lawn area. This dome tent enclosure is designed of clear plastic sheet material which is impervious to gases used to conduct chemical warfare (such as nerve gas, mustard gas, serin, cyanide, and the like) dispersed biohazard aerosol compounds (such as anthrax, smallpox, polio, bacteria, viruses, or fungi), or other atmospheric toxins, such as those from a nuclear fallout. This protective “pop-up”, external frame enclosure will be sized to house at least two adults comfortably (6×9×7 high inside, up to about 10×18?×7? high), will incorporate a zip-lock entrance/egress isolation portal chamber, and will communicate to the outside world through combat gas mask filters, plus phone, computer and electrical outlet feed-through, and perhaps a water trap coupling.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: January 27, 2009
    Inventors: Martin K. Gustafson, David E. Flinchbaugh, Douglas W. Dittmann, Martin Gozdenovich, D. Michael Epley