Patents Assigned to Beyer & Otto GmbH
  • Process and device for the spraying of hot melt glue
    Patent number: 4669661
    Abstract: A process and a device (10) are proposed for spraying hot melt glue with which the heated hot melt glue by means of a pneumatically operated extrusion gun can be fed to a nozzle (25), to which pressurized air is supplied for spraying the glue. The pressurized air is heated up by means of a heating cartridge (14) around which the pressurized air is fed in spiral form. The heating cartridge (14) heats up the casing (12) of the extrusion gun simultaneously and controlled.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: June 2, 1987
    Assignee: Beyer & Otto GmbH
    Inventor: Alfred R. Otto