Closure Securing Means Patents (Class 53/329)
  • Patent number: 3965656
    Abstract: An apparatus is disclosed for automatically dispensing cups to a continuously moving flight conveyor having openings for receiving the cups and carrying the same continuously forward through a cup-filling station, a cup capping station and a cup discharge station. A cup filling means travels forwardly while filling the cups and a heat sealer means heat seals caps to the cup rims while traveling forwardly with the cups. At the discharge station, the cups are automatically lifted and transferred from openings in the flight conveyor to a take-off means as the cups continuously travel forwardly. The apparatus is also capable of being modified to operate on an intermittent feed basis with the cups stopping at each of the respective stations.
    Type: Grant
    Filed: May 16, 1974
    Date of Patent: June 29, 1976
    Assignee: Solo Cup Company
    Inventor: Ralph D. Gerben
  • Patent number: 3962844
    Abstract: A process for providing a hermetic, heat-sealed closure for a filled, thermoplastic or thermoplastic coated container by the steps of: providing a continuous web of a thermoplastic material, having a temperature within the drooping and heat-sealing ranges of the thermoplastic material, draped over the mouth of the filled container; urging the web inwardly of the mouth of the container so that the web overlies interior and exterior, thermoplastic surfaces of the mouth of the container; and pressing the web against the interior and exterior, thermoplastic surfaces of the mouth of the container to form a heat-sealed bond, by directing a stream of a gas against an exposed surface of the web overlying a thermoplastic surface of the mouth of the container.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: June 15, 1976
    Assignee: International Paper Company
    Inventor: Robert Louis Gordon
  • Patent number: 3953957
    Abstract: The specification and claims disclose a method and apparatus for performing two manufacturing steps substantially simultaneously during the formation of a caulking tube cartridge. In general, the disclosed method includes the steps of providing a generally cylindrical anvil member adapted to be received in the piston end of the caulking tube; providing a flange ring member including a cylindrical open-ended section having a radially-extending flange; and, providing a protective cap adapted to snap on the nozzle end of the caulking tube. The open-ended section of the flange ring is positioned in the piston end of the tube with the flange overlying the end of the tube. The cap is axially aligned with the tube, and a force is applied to move the tube onto the anvil member. The force is sufficient to snap the cap onto the tube. Thereafter, the tube is rotated and the flange portion is deformed into a bead engaging the end of the tube.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: May 4, 1976
    Assignee: Century Industries Corporation
    Inventors: Don R. Brothers, Edwin D. Stewart
  • Patent number: 3946540
    Abstract: A heat seal capper head assembly for forming a closure and sealing a container with a heat seal cap having a heat shrinkable film includes an elongated housing having at one end adaptor means for releasably securing the assembly to the conventional filling apparatus for the container, while at the opposite end of the housing there is provided means for folding and heat sealing the heat seal cap to form a heat sealed closure having a central portion and a skirt portion. The folding means includes an annular folder ring secured to the housing, and an annular center collar concentric with and slidably mounted on the folder ring, with spring means disposed between the folder ring and the center collar for biasing the collar toward its extended position. The heating means is disposed internally of the annular collar and includes a disc-shaped portion for uniformly distributing heat across the central portion of the heat seal cap.
    Type: Grant
    Filed: May 13, 1974
    Date of Patent: March 30, 1976
    Assignee: Champion International Corporation
    Inventors: Thomas M. Solberg, Donald W. Hamil
  • Patent number: 3945853
    Abstract: The method, which provides liquid-impervious seals around opposed positive and negative battery electrodes in a collation of battery layers, concerns the need to apply energy around the opposed electrodes by some means other than and for a longer time period than the conventional pair of pressure rolls which have previously been used to seal moving battery layers. With this invention the seals are made by platens which either travel along with the moving collation during the sealing step or which are brought into contact with an increment of the collation which is temporarily stopped.
    Type: Grant
    Filed: December 7, 1972
    Date of Patent: March 23, 1976
    Assignee: ESB Incorporated
    Inventors: Kent V. Anderson, John M. Bilhorn
  • Patent number: 3939625
    Abstract: A device for printing and feeding covers to containers, comprises arranged above a conveyor for containers, rotary devices for picking up covers from a supply or stack, and presenting them to a printing device, and for applying the printed covers to the containers with the printed side visible. The rotary devices each comprise a plurality of arms extending from a hub tipped with suction pads. The first device picks up the covers from the supply, acts as an anvil for the printing device, and presents the cover to the second device with the printed side upwardly directed, so that the second device can deposit the covers on the containers, printed side up.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: February 24, 1976
    Assignee: Karl Remele
    Inventors: Karl Remele, Dieter Weiberg
  • Patent number: 3939627
    Abstract: The invention provides a machine for capping containers with closures made of heat shrinkable film and includes a film feeding mechanism, a film cutting mechanism, and a film shrinking head which is adapted to accommodate containers of different sizes. The film shrinking head comprises two elongate and opposed flexible heated members which are bowed away from one another so as to provide a space for introduction of a container and a sheet of heat shrinkable film that overlies the container, and means for drawing the two heated members and thereby the margins of the sheet of film tight against the rim of the container so as to cause the film to shrink and form a tight closure on the container.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: February 24, 1976
    Assignee: Tyco Laboratories, Inc.
    Inventor: Seymour Mermelstein
  • Patent number: 3938305
    Abstract: An apparatus for sealing packaging containers formed at least in part of a bondable material. The apparatus includes a first bonding unit and a second bonding unit which are fixedly disposed with mutual spacing on an endless conveyor. A device is provided for removing a covered container from the first bonding unit, after the container is provided with a first bonded seam therein by application of heat and pressure, and transferring it to the second bonding unit. This removing and transferring device is disposed on the common path of rotation of the two bonding units. The second bonding unit effects the application of a second bonded seam to the covered container.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: February 17, 1976
    Assignee: Robert Bosch G.m.b.H.
    Inventors: Helmut Jansen, Klaus Vollmer
  • Patent number: 3937645
    Abstract: This apparatus provides a means of sealing a plastic film cover over the open end of a plastic food container to render the container airtight and suitable for storage in a dispensing machine. The apparatus is self-contained and includes a base which carries a resiliently mounted support frame for the container, and a spindle-less dispensing frame for the film. A lever arm is pivotally mounted to the base rearwardly of the container support frame for swinging movement toward and away from the support frame. The lever carries a heat sealing head located forwardly of the pivot mounting for alignment with the container during heat sealing, and a cutter located rearwardly of the heat sealing head for clamping and severing the film adjacent the container support frame just prior to heat sealing. The heat sealing head includes a platen having peripheral margin portions registrable with the container flanges and grooved to provide improved heat sealing of the film to the container.
    Type: Grant
    Filed: January 11, 1974
    Date of Patent: February 10, 1976
    Assignee: Standard Container Company
    Inventors: Fred Ascoli, Robert R. Hermann