Patents Assigned to Elektrostatische-Spritz-und Beflockungsgesellschaft G.F. Vohringer GmbH
  • Patent number: 4169560
    Abstract: An electrostatic spray gun for powdered material in which separate connecns for supplying powder and compressed air are provided together with a spray tube and spray nozzle. A charging device charges the powder electrostatically. The connections for the powder and compressed gas supply are held in a common housing portion. A gun barrel, together with spray nozzle, constitute nested hollow members fastened to the front of the housing. A barrel head on an outer end of the gun barrel holds the spray nozzle to the outer end of the spray tube which is fastened axially and radially to the housing by an exterior barrel tube. A spacer which encloses the spray tube is held on both ends and is fixed to rotate with housing and barrel head.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: October 2, 1979
    Assignee: Elektrostatische Spritz-- und Beflockungsgesellschaft G.F. Vohringer GmbH
    Inventor: Gerhard F. Vohringer
  • Patent number: 4088268
    Abstract: An electrostatic spray gun for powdered material in which separate connecns for supplying powder and compressed gas are provided. An intake for introducing the powdered material to a conveying gas stream, and a spray tube and spray nozzle are also provided with the gun. A charging device charges the powder electrostatically. The connections for the powder and compressed gas supply, as well as an injector are held in a common housing portion. Supply channels for the powder and conveying gas lead from their respective connections to the injector. A metering gas channel leads from the compressed gas connection to the powder supply channel, and control valves are provided in the metering gas channel and the conveying gas channel. The common housing portion has a connection for a powder magazine and a connection for loosening gas to be supplied to the magazine. This connection leads to the compressed air connection via a passage located in the housing portion and having an additional control valve.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: May 9, 1978
    Assignee: Elektrostatische-Spritz-und Beflockungsgesellschaft G.F. Vohringer GmbH
    Inventor: Gerhard F. Vohringer