Work Penetrating Member Patents (Class 493/392)
  • Patent number: 6524479
    Abstract: A filter element 10 for purifying fluids having a filter medium 11, an enclosure member 12, and a rod 13. The filter medium 11 has folds 14, which may be zigzag-shaped, and which define a fold height 15 and a pleat surface 16. At right angles to folds 14 extend end faces 17, which represent the course of the folds 14. The enclosure members 12 are arranged on the end faces 17. To support the folds 14, the rod 13 pierces through the pleat surfaces 16 of the folds 14 creating joints 19. These joints 19 are sealed, e.g., by additional seals or by fusing the filter medium to the support rod or the support rod to the filter medium.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: February 25, 2003
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventor: Alfons Schwinghammer
  • Patent number: 6035613
    Abstract: A cushioning conversion machine, method and product characterized by a connecting assembly that provides a mechanical interlock between overlapped portions of sheet-like stock material to prevent "unzippering" of a low density cushioning product produced by the cushioning conversion machine. The connecting assembly comprises a pair of rotatable stitching members, a first one having a plurality of radially outwardly extending projections, or teeth, around the circumference thereof, with the projections having at least two axially spaced apart segments defining a recess therebetween. The second stitching member includes at least one axial punch segment which includes a peripheral edge portion dimensioned to be received in the recess in the first stitching member during rotation of the stitching members.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: March 14, 2000
    Assignee: Ranpak Corp.
    Inventors: Michael J. Lencoski, Edwin P. Beierlorzer
  • Patent number: 5921066
    Abstract: The invention relates to a wrapped pulp bale of the kind which, apart from a proper bale, comprises an enveloping wrapping which is folded along opposite faces of the bale while forming mutually overlapping parts in which the paper lies in two or more layers on top of each other. For holding the wrapping against the proper bale, sets of lugs (26) are provided in the overlapping parts of the wrapping, each set of lugs including a number of lugs corresponding to the number of paper layers, which are punched out from the paper layers while leaving through holes therein, and folded along a common folding line (25) as well as jointly inserted between the inside of the innermost layer of paper and the outside of the bale in order to be held therebetween.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: July 13, 1999
    Inventors: Kaj-Ove Olsson, Siinto Ikalainen
  • Patent number: 5899841
    Abstract: A device for the mechanical connection of documents comprising a base, a paper support, a cover pivotably connected to said base, a stylus with an eye for creating a cut, a stamping and bending element for stamping out and pushing a plurality of paper tongues though said eye, said stamping and bending element having a cutting face in the form of a stamping plunger and a projection for bending the stamped out paper tongues, and a carrier for actuating the pivot movement. The stamping and bending element is pivotably fastened on the base. The paper support forms a pushing element which can be lowered into the base and which is maintained in an upper position of rest by a spring. The paper support, as a die plate for stamping the paper tongues, forms a first recess, and, for stamping the cut, forms a second recess.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: May 4, 1999
    Assignee: Metodya B & B
    Inventor: Christian Berger
  • Patent number: 5782736
    Abstract: A method and device for supplying collar-coupon assemblies to the wrapping line of a packing machine for producing rigid hinged-lid packets, whereby a collar and a respective coupon, as they travel along respective paths to a mating station, are respectively provided, by cutting, with a pocket, and with an appendix which is inserted at least partly inside the respective pocket at the mating station to make the collar and coupon substantially integral with each other as they travel along a common path extending downstream from the mating station.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: July 21, 1998
    Assignee: G.D Societa' Per Azioni
    Inventors: Marco Brizzi, Lorenzo Cocchi, Antonio Gamberini
  • Patent number: 5447402
    Abstract: A paper binding instrument for binding a sheaf of papers without the use of metal staples including punching edges and auxiliary punching edges. The punching edges can make small holes in a sheaf of paper continuing from punched foot parts of a small width and punched head parts of a large width. The punching edges push down head pieces which were the head parts through the sheaf of papers while leaving punched pieces corresponding to the foot parts. The auxiliary punching edges can make auxiliary small holes facing in different directions from the facing directions of the small holes that are formed with the punching edges.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: September 5, 1995
    Assignee: Sun-Star Stationery Corporation
    Inventor: Eizo Kobayashi