Patents Examined by M. B. Calligaris
  • Patent number: 4398665
    Abstract: Either foam or liquid is supplied under pressure to a distributor having a plurality of outlets each connected to a respective passageway extending along one side of a trough. Means are provided to combine the streams of material exiting the passageways prior to the material entering the trough. A curved blade is positioned along the opposite side of the trough. As the trough fills, an overflow of material passes over the crest of the blade and moves along the blade's curvature so as to be uniformly deposited on a web of material moving in a direction normal to the length of the trough.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: August 16, 1983
    Assignee: West Point Pepperell, Inc.
    Inventors: Clifford A. Bryant, Gary M. Bearden, Joseph A. Pacifici
  • Patent number: 4395968
    Abstract: The glue pot is attached to a glue applicator to supply a continuous flow of hot liquid glue to the applicator rolls of the glue applicator. The glue pot comprises an upright cylindrical glue container with an opening formed in the central portion of its bottom wall, and a water stack extending from said bottom wall opening upwardly through the glue container to form an annular glue reservoir. A water tank is positioned below the bottom wall of the glue container in open communication with the water stack, and water is supplied to the water tank and water stack. Heating means heats the water in the water tank and in the water stack, so that the glue in the glue reservoir is heated from inside out and from bottom up.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: August 2, 1983
    Inventors: Paul Wahnschaff, Steven Wahnschaff, Michael J. Wahnschaff
  • Patent number: 4393805
    Abstract: A pipeline pig for lining pipe lines with an internal coating of a solidifying plastic composition with which the pipe line is spread by means of the pig, the pipeline pig having at least one spreader body and at least one forward and one rear guide body. The guide body comprises at least three narrow, resiliently elastic guide pieces bent into U-form comprising a middle part with forward and rear U-legs at the ends and rounded transitions from the middle part to the U-legs, the middle parts extending in the axial direction of the pipeline pig for guidance of the pipeline pig in the pipe line by abutment on the inner wall of the pipe line and being offset in relation to one another in the circumferential direction, the forward U-legs being non-displaceably secured in the axial direction in the pig and the rear U-legs being displaceably mounted in the axial direction in the pig and secured to a common bearing.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: July 19, 1983
    Assignee: diga-die gasheizung GmbH
    Inventor: Hubert Boer
  • Patent number: 4386576
    Abstract: A dripless, easily cleaned glue applicator for a machine for making two-piece paper cups comprises an outer body member in which there is a cavity that opens to a slot in a flat bottom surface of the member. The slot has a shape and size conforming to an area of glue to be applied. An inner member in the body member forces the longitudinally central portion of a resilient foam pad to bulge down through the slot and clamps the pad to the outer body member. The inner member also provides a glue chamber that is communicated with a pressurized source of glue and from which numerous bores, spaced along the length of the inner member, open downwardly to the pad. A top plate on the outer body member closes its cavity, holds the inner member in clamping relation to the outer body member, and provides for mounting the applicator.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: June 7, 1983
    Assignee: Paper Machinery Corporation
    Inventor: Craig N. Johnson