Bending Of One Lamina Only Patents (Class 156/223)
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Patent number: 4883547Abstract: 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: GrantFiled: March 1, 1989Date of Patent: November 28, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventor: Daniel A. Japuntich
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Patent number: 4865807Abstract: 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: GrantFiled: November 3, 1987Date of Patent: September 12, 1989Assignee: Isovolta Osterreichische Isolierstoffwerke AktiengesellschaftInventors: Georg Petershofer, Horst Felzmann
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Patent number: 4814031Abstract: 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: GrantFiled: October 15, 1986Date of Patent: March 21, 1989Inventor: Rudolf Zodrow
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Patent number: 4812190Abstract: 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: GrantFiled: January 30, 1987Date of Patent: March 14, 1989Inventor: Peter Pelz
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Patent number: 4784712Abstract: 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: GrantFiled: April 26, 1985Date of Patent: November 15, 1988Inventor: James E. Hoyle
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Patent number: 4710256Abstract: 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: GrantFiled: September 11, 1985Date of Patent: December 1, 1987Assignee: E.C.H. Will (GmbH & Co.)Inventors: Dieter Ladewig, Bernd Ramcke
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Patent number: 4541885Abstract: 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: GrantFiled: October 25, 1984Date of Patent: September 17, 1985Assignee: General Motors CorporationInventor: Charles Caudill, Jr.
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Patent number: 4537646Abstract: 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: GrantFiled: June 10, 1983Date of Patent: August 27, 1985Inventor: James E. Hoyle
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Patent number: 4428792Abstract: 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: GrantFiled: April 26, 1982Date of Patent: January 31, 1984Assignee: Matsushita Electric Works, Ltd.Inventors: Yukio Kurita, Satoshi Nakagawa
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Patent number: 4391669Abstract: 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: GrantFiled: January 23, 1981Date of Patent: July 5, 1983Assignee: Hitachi Maxell, Ltd.Inventors: Tohru Yamakawa, Kozi Akiyama
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Patent number: 4376748Abstract: 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: GrantFiled: June 19, 1981Date of Patent: March 15, 1983Inventor: Waltherus J. van Erven
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Patent number: 4299643Abstract: 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: GrantFiled: August 8, 1980Date of Patent: November 10, 1981Inventor: Carroll N. Cross
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Patent number: 4249269Abstract: 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: GrantFiled: December 5, 1977Date of Patent: February 10, 1981Assignee: Adver-Togs, Inc.Inventor: James E. Price
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Patent number: 4164071Abstract: 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: GrantFiled: December 27, 1977Date of Patent: August 14, 1979Assignee: Ford Motor CompanyInventor: Joseph K. Kruzich
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Patent number: 4138302Abstract: 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: GrantFiled: June 22, 1977Date of Patent: February 6, 1979Assignee: Moore Business Forms, Inc.Inventor: Emil A. D'Luhy