Bending Of One Lamina Only Patents (Class 156/223)
  • Patent number: 4883547
    Abstract: The invention provides a filtration face mask which has an expanded filtration surface area and high filter efficiency. The mask includes at least two sidewall portions generally extending away from the face of the wearer and away from an annular base. A frontal portion bridges the sidewall portions and at least two supporting arche structures are disposed at the junction of the sidewall and frontal portions.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: November 28, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Daniel A. Japuntich
  • Patent number: 4865807
    Abstract: A high pressure laminate comprising a plurality of heat molded sheets impregnated with duromeric synthetic resins characterized in that several of these sheets form on at least one surface of the laminate a heat-shapable surface layer (2,3) while the remaining sheets form a non-heat-shapable region which includes a core layer of the laminate.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: September 12, 1989
    Assignee: Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft
    Inventors: Georg Petershofer, Horst Felzmann
  • Patent number: 4814031
    Abstract: A method of and device for imprinting the upper surface of a container that has a closure at its upper surface, especially of a bottle with a head that is wrapped along with its cap all the way around with a blank, especially of foil, by applying the blank around the head while leaving part of the blank to project beyond it, wrapping the sleeve-shaped extension to one side against the upper surface of the cap, and pressing it down with a resilient pad. The disk is embossed at the upper surface, the blank of foil is pressed down with the resilient pad, forcing foil into the embossed areas, and the raised areas of the embossing are then burnished with a hard pressure-application component.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: March 21, 1989
    Inventor: Rudolf Zodrow
  • Patent number: 4812190
    Abstract: A thermally insulating covering is provided incorporating a synthetic resin-impregnated carrier mat of fibers and an aluminum foil layer on that entire side of said carrier mat which is to face a heat source. A layer of insulating material is preferably located in predetermined areas between the carrier mat and the aluminum foil. A process for producing such covering is also provided.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: March 14, 1989
    Inventor: Peter Pelz
  • Patent number: 4784712
    Abstract: Process for forming and securing a polymeric sheet onto a planer board, process for making a lap desk, a die apparatus used in the process, and the laminated board product. The process includes the steps of gluing an oversize sheet onto the board and drawing the board through a heated die to bend the edges of the sheet onto the periphery of the board. The lap desk is formed by gluing a bag to the periphery of the board, filling the bag with stuffing, and drawing the sheet, board and stuffed bag through the die to laminate the sheet to the board. The die apparatus includes a frame to hold the assembly as it is drawn through the die, and a press for pushing the assembly through the die.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: November 15, 1988
    Inventor: James E. Hoyle
  • Patent number: 4710256
    Abstract: Adhesive coated front edge faces of successive stacks of paper sheets are bonded to downwardly folded marginal portions of flap-over covers at an aligning station which receives stacks from a first source along a first path wherein the stacks are caused to advance at right angles to their adhesive-coated edge faces and which receives covers with adhesive-coated marginal portions from a second source. The covers move along a second path lengthwise of their marginal portions and in parallelism with the front edge faces of the stacks in the first path. Each stack which arrives at the aligning station is disposed behind the downwardly bent marginal portion of the corresponding cover and is thereupon moved with the cover through the nip of two rollers which apply external pressure to bond the marginal portion to the edge face of the corresponding stack.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: December 1, 1987
    Assignee: E.C.H. Will (GmbH & Co.)
    Inventors: Dieter Ladewig, Bernd Ramcke
  • Patent number: 4541885
    Abstract: In accordance with a preferred embodiment, a dielectrically embossed automotive seat cover assembly is formed by providing a laminate of a decorative cover material, a first, relatively thin, polyurethane foam layer that is dielectrically heatable and a second thicker polyurethane foam layer that is not dielectrically heatable, and thereafter impressing a desired embossment pattern into the upper polyurethane and dielectrically fusing said upper layer of polyurethane to bond the cover layer to the lower polyurethane layer, thus forming the embossed pattern in the laminate structure.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: September 17, 1985
    Assignee: General Motors Corporation
    Inventor: Charles Caudill, Jr.
  • Patent number: 4537646
    Abstract: Process for forming and securing a polymeric sheet onto a planer board, process for making a lap desk, a die apparatus used in the process, and the laminated board product. The process includes the steps of gluing an oversize sheet onto the board and drawing the board through a heated die to bend the edges of the sheet onto the periphery of the board. The lap desk is formed by gluing a bag to the periphery of the board, filling the bag with stuffing, and drawing the sheet, board and stuffed bag through the die to laminate the sheet to the board. The die apparatus includes a frame to hold the assembly as it is drawn through the die, and a press for pushing the assembly through the die.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: August 27, 1985
    Inventor: James E. Hoyle
  • Patent number: 4428792
    Abstract: A method of forming a structural column wherein a plurality of formed inner and outer column layer halves are integrally constructed from flat sheets of wooden laminate simultaneously bonded together and molded into a triangularly shaped wave pattern.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: January 31, 1984
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yukio Kurita, Satoshi Nakagawa
  • Patent number: 4391669
    Abstract: This invention is directed to a device for making a magnetic recording disc cartridge having an enclosure composed of a cover sheet with a liner and a recording disc, wherein the liner is preliminarily fixed to the cover sheet by at least two spots to prevent a displacement of the liner from position during the process of making the cartridge.
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: July 5, 1983
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Tohru Yamakawa, Kozi Akiyama
  • Patent number: 4376748
    Abstract: A method of forming a slab having at least one profiled edge comprising a base sheet and a cover sheet connected herewith, the cover sheet being partly connected with the base sheet in a manner such that a peripheral part of the cover sheet protrudes beyond the edge of the base sheet, in the proximity of which the profiled edge has to be formed, comprising positioning of the base sheet with the cover plate partly connected herewith with respect to a mould having the profile of the profiled edge and nestling an outer surface of the peripheral part of the cover sheet against the mold, filling out a space bounded by the peripheral part of the cover sheet and the edge of the base sheet with curable filling means adhering to the two sheets, curing of the filling agent and removing the slab from the mold.
    Type: Grant
    Filed: June 19, 1981
    Date of Patent: March 15, 1983
    Inventor: Waltherus J. van Erven
  • Patent number: 4299643
    Abstract: A hinged display mount hinged with a thin aluminum strip is formed in a manner to prevent damage to the display mount upon bending of the hinge. The aluminum hinge is secured to a pair of panels and preformed or shaped with a die in a manner to produce a clean bend after the panels and hinge have been casebound.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: November 10, 1981
    Inventor: Carroll N. Cross
  • Patent number: 4249269
    Abstract: A cap visor defined by upper and lower layers of material having an insert board therebetween in a water sealed relationship. The upper layer of material includes a pattern of molded simulated stitch lines thereon.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: February 10, 1981
    Assignee: Adver-Togs, Inc.
    Inventor: James E. Price
  • Patent number: 4164071
    Abstract: A circuit board having a die stamped conductive pattern is produced having terminals which are integral with the conductive pattern on the board. A first embodiment is produced by folding the conductive material over a designated terminal edge of the board to obtain commonly connected terminals on opposite sides of the board. The second embodiment is produced by extending the conductive material past the terminal edge of the board and folding the material 180.degree. to obtain an integral blade terminal extending from the board.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: August 14, 1979
    Assignee: Ford Motor Company
    Inventor: Joseph K. Kruzich
  • Patent number: 4138302
    Abstract: A stubless unit set of multiple plies of the type including at least superimposed top, intermediate and bottom plies is made by removably interconnecting the top and bottom plies together and by removably interconnecting the intermediate and bottom plies together. The top and bottom plies are interconnected by providing a fold flap along an edge of the top ply, applying detachable adhesive to the flap, folding the flap to underlie the bottom ply and contacting the bottom ply with the adhesive, and the intermediate and bottom plies are interconnected by providing at least one hole in the bottom ply and extending a portion of the adhesive through the hole so as to contact the intermediate ply. Each of the plies is devoid of any tear lines which may form a stub.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: February 6, 1979
    Assignee: Moore Business Forms, Inc.
    Inventor: Emil A. D'Luhy