Patents by Inventor Carl M. Arko

Carl M. Arko 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: 4852945
    Abstract: A human seating apparatus comprehensively designed to provide prolonged body support from contoured specifications; constructed of rigid shaped one piece seating receptacle made of thermo formable materials and providing for a method of making the receptacle by taking an impression of the seated individual in a pellet containing bladder, making corrective changes, preparing a positive mold impression and forming a first sheet of heat moldable plastic over said positive mold and forming a second sheet of heat moldable rigid plastic over the first sheet, adhesively binding the two molded sheets together to form the seating receptacle, affixing the receptacle to a mounting ring and then to a chair stand base support.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: August 1, 1989
    Inventors: John W. Rowles, Carl M. Arko