Patents Assigned to Dynamelt Limited
  • Liquefying hot melt adhesive
    Patent number: 4505669
    Abstract: For liquefying hot melt adhesive, a hopper is provided at its lower region with one or more discrete upwards projections (for example a single, fluted cone), with means for heating the projection(s). In use, a unitary mass of hot melt adhesive is lowered into the hopper to become supported on the projection(s), as a result of which the unitary mass is progressively melted and the melted adhesive flows from the bottom of the hopper.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: March 19, 1985
    Assignee: Dynamelt Limited
    Inventor: John Rogers
  • Coating applicator head
    Patent number: 4466378
    Abstract: An applicator head, for applying a coating of material (e.g. hot-melt adhesive) to a passing ribbon comprises an extrusion slot disposed transverse to the direction of passage of the ribbon and arranged to apply a coating of material in at least one continuous band along the ribbon, and an arrangement for intermittently opening and closing an extrusion slot for applying a coating of material discontinuously in a band contiguous with said one band.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: August 21, 1984
    Assignee: Dynamelt Limited
    Inventors: John Rogers, David J. Redfern