Patents Assigned to John G. Bowen
  • Patent number: 4853517
    Abstract: An electrically energized vaporizing unit for medications, room deodorizers, room scenting compounds, room insecticides, and the like, which is simple and inexpensive in its construction and which is compact in size. The vaporizing unit includes a housing having a central slot for holding a compressed paper fiber pad which is impregnated with the substance to be vaporized. The pad is heated by a pair of electrical heating elements which are located in the housing and positioned on opposite sides of the slot for maximum vaporizing efficiency of the pad. The housing may also contain paraffin wax. The melting point of the wax is selected to correspond to the vaporizing temperature of the particular substance in the pad. The vaporizing unit is provided with an electric plug which may be directly plugged into an electric receptacle to energize the PTC heating elements, and it does not require a switch or protective thermostat.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: August 1, 1989
    Assignee: John G. Bowen
    Inventors: John G. Bowen, John M. Groome
  • Patent number: 4529868
    Abstract: An electrically energized evaporator and/or soft lens heating and disinfecting unit is provided which is compact in size in that it does not require a separate holder for the lenses. Instead, the unit itself forms the lens holder, and the holder has compartments for the left and right lenses and which are adapted to be filled with an appropriate saline solution, the compartments being heated by electrical heating elements to perform the desired disinfecting and sterilizing functions. These heating elements may take the form of positive temperature coefficient (PTC) elements. The unit is equipped with an electric plug which may be directly plugged into an electric receptacle to energize the heating elements.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: July 16, 1985
    Assignee: John G. Bowen
    Inventors: John G. Bowen, Stephen G. Hauser