Patents by Inventor Zoltan Czirmai

Zoltan Czirmai 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: 4163511
    Abstract: Method and apparatus for dispensing material from a hand-held gun connected by a flexible conduit to a source of the material under pressure. The control of material flow is effected by a valve in series between the flexible conduit and the source of material, and hence remote from the gun, thereby to reduce the weight of the gun and to provide a gun that has no moving parts for controlling material flow. One or more orifices is provided in the handle of the gun for the continuous discharge of low pressure control air that actuates the valve or valves; and the selective opening or closing of the orifice or orifices by the hand or fingers of the operator, thus controls the valve or valves and hence the flow of material for materials to the gun.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: August 7, 1979
    Assignee: Muanyagipari Kutato Intezet
    Inventors: Geza Kecskemethy, Gyorgy Virag, Robert Tihanyi, Zoltan Czirmai