Noncircular Aperture (e.g., Slit, Diamond, Rectangular, Etc.) Patents (Class 428/134)
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Patent number: 5273804Abstract: To form a paved surface, a laminate is used which has on the bottom a geotextile fabric with the mesh structure on the top. The fabric is adhered to the road base by spraying or spreading a bituminous liquid onto the base and laying on the laminate and applying further adhesive to the top of the laminate; asphalt is then placed and rolled. The laminate is formed of a square or rectangular mesh structure which has oriented stands connected at junctions which are thicker than the strands and have low-orientated or unorientated nodules. On one side the surface of the nodules are melted and the fabric is pressed into the nodules so that the plastics material of the nodules envelopes some of the fibers or filaments of the fabric to form a mechanical bond. In this way, the oriented strands stand proud of the fabric, to enable the asphalt aggregate to penetrate into the meshes and interlock with the strands.Type: GrantFiled: May 14, 1992Date of Patent: December 28, 1993Assignee: Netlon LimitedInventors: Mercer F. Brian, Martin K. Fraser, Brian Orr
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Patent number: 5250342Abstract: An EMI shield is disclosed for providing EMI protection. The shield is lightweight, and easily moldable into complex shapes, having conductive mating surfaces provided on opposite sides thereof. The clean, highly conductive mating surfaces are part of an embedded aluminum wire mesh sandwiched between at least two face plies which add strength to the shield. By sandwiching the metal mesh alternately with a nonporous tape, and a barrier tape ply, clean conductive areas can be provided on either side of the shield, easing attachment to adjacent structures. During curing, the tapes prevent direct resin inclusion into the metal mesh. After curing, the nonporous tape is removed to expose the clean, highly conductive mating surfaces.Type: GrantFiled: April 16, 1992Date of Patent: October 5, 1993Assignee: United Technologies CorporationInventors: Charles F. Lang, Rocco R. DiGenova
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Patent number: 5240759Abstract: A mat for protecting the surfaces of equipment from scratching, denting, and chemical action during servicing, particularly well suit for the surfaces of an aircraft during a refueling operation. The mat closely conforms to the surface shape of the aircraft wing and does and cannot be readily moved or damage during use. The mat preferably includes one or more depressions for containing spills fuel and/or accommodating tools and other servicing items and equipment.Type: GrantFiled: June 17, 1991Date of Patent: August 31, 1993Inventor: Charles B. Layton
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Patent number: 5236753Abstract: A floor mat for use in covering the floor of a motor vehicle comprises a corrugated layer having first and second opposing surfaces and a single face layer affixed to one of the surfaces of the corrugated layer so that the corrugated layer may be rolled up in a direction enclosing the face layer within the corrugated layer. Preferably, at least one tear line is provided for permitting the floor mat to be split into first and second mat portions which may be separately rolled up and removed from the vehicle after use. The first and second mat portions are each adapted to underlie a separate passenger area of the motor vehicle in order to protect the floor of the vehicle from being dirtied during use. In another embodiment, a generally trapezoidally-shaped universal floor mat is provided which can alternately be placed on the floor beneath the front driver's or front passenger's side of a vehicle.Type: GrantFiled: July 20, 1992Date of Patent: August 17, 1993Assignee: Lawrence Paper CompanyInventors: Joseph W. Gaggero, Michael W. Sullivan
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Patent number: 5217787Abstract: Material multi-faceted as to its advantageous properties and highly versatile in use and application comprises a very light, relatively thin, sheet-like structure, a layered composite of cellular and non-woven materials. Said structure is formed of layered sheets, bonded to one another, including a thin sheet of a cellular material the face(s) of which have a very thin sheet-like overlay of a non-woven permeable reinforcing material such as, preferably, rayon or nylon. The body of the cellular sheet material, preferably of plastic such as polyurethane, polyester or polyether, is characterized by innumerable extremely small, relatively minute pockets having extremely thin elastic wall portions through which fluid may readily pass to said pockets to store therein in amounts the volume of which may be a significant multiple of that originally defined by said wall portions.Type: GrantFiled: May 9, 1991Date of Patent: June 8, 1993Assignee: The Thomas Monahan Co.Inventor: Patrick H. Monahan
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Patent number: 5212004Abstract: In the board of ceramic material for the construction of permeable structures, the board has three rows of holes which extend parallel to one another and are arranged symmetrically to the axis of symmetry. Three recesses of differing length are arranged between the rows of holes. The recesses intersect the board edge, the longest and one of the two shorter ones opening out at the same board edge and the shortest being opposite the second longest. The webs remaining between the recesses or the recess and the board edge have a length of 25%.+-.0 to 6% in relation to the length of the board determined by the direction of the rows of holes. The boards are stacked in succession to form various layers of the plate heat exchanger as the holes of the stacked boards form continuous channels and the recesses form shallow channels which extend substantially transversely to the continuous channels.Type: GrantFiled: July 16, 1991Date of Patent: May 18, 1993Assignee: Hoechst AktiengesellschaftInventors: Jurgen Bottcher, Rudolf Ganz, Otto Heinz, Jorg Honerlage
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Patent number: 5208084Abstract: A pad (10) is adapted for attachment to an edge (18) of a countertop or desk (12). The pad (10) is constructed of a frame (28) extending over two surfaces of the desk (12) and is covered with cushioning (30) and a cover (36). The pad (10) attaches with adhesive strips (38) mounted directly on the frame (28) for attaching to the top (14) of the desk (12).Type: GrantFiled: May 21, 1991Date of Patent: May 4, 1993Inventor: Almer J. Rutz
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Patent number: 5204158Abstract: An entangled fibre nonwoven fabric containing irregular sized apertures in a random irregular nonrepeating pattern in disclosed. In the method of the invention, a fibrous web is caused to be displaced out of registry with the forming member between fluid impacts by columnar jets of water.Type: GrantFiled: May 30, 1991Date of Patent: April 20, 1993Assignee: ChicopeeInventors: Robert L. Phillips, Connie B. Taylor, Lauren Jackson
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Patent number: 5180621Abstract: The invention is directed to a heat-shrinkable envelope composed of a heat-shrinkable component and a reinforcing component that is embedded in the heat-shrinkable component and has undulations or corrugations. The reinforcing component has special arrangements for stopping tears, such as the provisions of embossments or beads, the provision of holes, punctures and slots.Type: GrantFiled: May 21, 1992Date of Patent: January 19, 1993Assignee: RXS Schrumpftechnik-Garnituren GmbHInventors: Manfred Heier, Uwe Brudermann, Christian Kipfelsberger
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Patent number: 5154797Abstract: A shadow mask for sputtering is formed from a single crystal silicon wafer which is mechanically and chemically polished to produce top and bottom surfaces which are substantially flat and parallel to one another. The wafer is provided with one or more pyramidal etch pits which are arranged in a pattern. Each pit has a substantially square cross-section on the top surface, and a smaller substantially square cross-section on the bottom surface to produce an aperture in the wafer. In use, the wafer is clamped against a flat substrate with its apertures opening toward the evaporant beam. After use, the deposited species may be cleaned from the wafer using suitable etchants which render the wafer unharmed, and therefore reusable.Type: GrantFiled: August 14, 1991Date of Patent: October 13, 1992Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Theodore V. Blomquist, Bernard J. Rod, Judith T. McCullen, Bohdan J. Dobriansky
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Patent number: 5153052Abstract: A double-shot molded resin article comprises a primary molding part and a secondary molding part. The secondary molding part is molded from a thermoplastic resin having a melting point higher than the melting point of the primary molding thermoplastic resin. The primary molding part has a plurality of raised portions formed upon its surface so as to be fusion bonded to the secondary molding part. These raised portions are fused by means of the secondary molten resin at the time of the secondary molding process, whereby the primary and secondary molding parts are fusion-bonded to each other.Type: GrantFiled: April 9, 1991Date of Patent: October 6, 1992Assignee: Nifco, Inc.Inventors: Toshie Tanaka, Akiro Nakagawa, Haruhiko Watari, Yasuhiko Ikeda
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Patent number: 5150787Abstract: A carrier tape comprising a strip of flexible material having a series of spaced through openings and a predetermined thickness, the size of the openings and the predetermined thickness being adapted to receive a component between the major surfaces of said strip. The strip of flexible material comprises a layer of nonwoven thermoplastic polymeric fiber adhered together and has in the range of 20 to 70 percent air filled open spaces between the fibers.Type: GrantFiled: February 21, 1991Date of Patent: September 29, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gerald C. Bird, Paul E. Hansen
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Patent number: 5149572Abstract: A floor mat for use in covering the floor of a motor vehicle comprises a corrugated layer having first and second opposing surfaces and a single face layer affixed to one of the surface of the corrugated layer so that the corrugated layer may be rolled up in a direction enclosing the face layer within the corrugated layer. At least one tear line is provided for permitting the floor mat to be split into first and second mat portions which may be separately rolled up and removed from the vehicle after use. The first and second mat portions are each adapted to underlie a separate passenger area of the motor vehicle in order to protect the floor of the vehicle from being dirtied during use.Type: GrantFiled: February 8, 1991Date of Patent: September 22, 1992Assignee: The Lawrence Paper CompanyInventors: Joseph W. Gaggero, Michael W. Sullivan
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Patent number: 5139848Abstract: A combination section consisting of a base section (1) and a covering section (2). The covering section (2) is of an anti-friction material having a coefficient of expansion deviating from that of the material of the base section (1), and is divided between fastening points into partial lengths (4). The partial lengths (4) are interconnected by deformable bridges (6). This makes it possible for the partial lengths (4) to expand essentially unhindered, independent of the expansion of the base section (1) to a different extent.Type: GrantFiled: January 25, 1991Date of Patent: August 18, 1992Assignee: H. Krantz GmbH & Co.Inventors: Karl Grafen, Hans Cramer
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Patent number: 5134007Abstract: Absorbent articles such as disposable diapers, incontinent pads, sanitary napkins and the like that have multiple layer absorbent cores that are suitable for acquiring and containing liquids in an especially effective and efficient manner.Type: GrantFiled: May 1, 1991Date of Patent: July 28, 1992Assignee: The Procter & Gamble CompanyInventors: George S. Reising, Bruce H. Bergman, Sandra H. Clear, Susan E. Guinn, Rolando Gomez-Santiago
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Patent number: 5118554Abstract: Disclosed is an interleaved L-fold towel arrangement which minimizes a number of different types of commonly occurring paper towel dispensing failures. Each towel in the interleaved stack of towels in the present invention is comprises of a sheet which has been folded in half to substantially create a two-ply arrangement. A second fold is imparted to the towel substantially to the first fold thereby creating a lead flap and a trailing flap. The lead flap begins with the first fold and thereby creates a tab end which is two-ply and which will not delaminate on dispensing. The user will thus always be grasping a two-ply product as it is being dispensed thereby minimizing tear-out and tab-out failure.The lead flap preferably has less width than the trailing flap, thus limiting the amount of deformation which must be imparted by the trailing flap to the lead flap next to be dispensed to cause said lead flap to be drawn through the dispensing opening of a dispenser.Type: GrantFiled: October 16, 1990Date of Patent: June 2, 1992Assignee: Scott Paper CompanyInventors: Michael Y. Chan, James J. Hipkins
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Patent number: 5114409Abstract: A rhomboid piece of paper and plastic laminate has a central rhomboid region scored with parallel lines of weakening. Border regions are provided with appropriate layers of adhesive such that when the blank is wrapped around a needle cap, the border region nearest the open end of the cap bonds to the cap and provides a first circumferentially continuous end band, while the border region nearest the closed end of the cap provides a second end band which is axially moveable relative to the cap. The two end bands are joined by a plurality of longitudinally extending circumferentailly contiguous regions which separate into strips which project radially to form an umbrella-like structure when the second end band is urged toward the first end band. The strips extend along a slight helix angle before formation of the umbrella-like structure.Type: GrantFiled: January 23, 1991Date of Patent: May 19, 1992Assignee: Design Opportunity Corp.Inventors: Richard L. Kole, Bernard Cohen
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Patent number: 5098765Abstract: The present invention relates to an arrangement for attaching a plastic panel to an automotive body metal substructure enabling controlled distortion free thermal expansion and contraction of the plastic panel relative to a metal substructure. The attaching arrangement comprises a plastic adjustable mounting block sized for initial insertion in an associated wide slot portion of a keyhole-shaped expansion and contraction slot. The block has a central abutment portion depending from an upper plate portion including lateral extending wings providing with the plate opposed grooves adapted to slidably engage a narrow trailing slot portion of the keyhole-shaped slot upon the blocks subsequent longitudinal rearward movement.Type: GrantFiled: December 22, 1989Date of Patent: March 24, 1992Assignee: Chrysler CorportionInventor: Alfred A. Bien
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Patent number: 5079064Abstract: A ceramic honeycomb structure containing SiO.sub.2, Al.sub.2 O.sub.3 and MgO primarily in the form of cordierite, mullite and corundum having a compositional gradient in the direction of the channels of the honeycomb and having extensive microcracking provides high resistance to thermal shock, and is useful as a substrate for catalysts.Type: GrantFiled: April 30, 1990Date of Patent: January 7, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: George D. Forsythe
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Patent number: 5077114Abstract: A porous aluminum oxide film has a plurality of pores passing through the film. Each pore has a pair of larger diameter pores and a smaller diameter pore. The smaller diameter pore is disposed in a central portion with respect to the thickness of the film, and the larger diameter pores are disposed upon both ends of the smaller diameter pore.Type: GrantFiled: September 26, 1989Date of Patent: December 31, 1991Assignee: Kyoto UniversityInventors: Kazuhiro Wada, Nobuyoshi Baba, Sachiko Ono, Takako Yoshino
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Patent number: 5073433Abstract: A thermal barrier coating for substrates comprising zirconia partially stabilized by yttria and having a density greater than 88% of the theoretical density with a plurality of vertical macrocracks homogeneously dispersed throughout the coating to improve its thermal fatigue resistance. The invention also discloses a process for producing the thermal barrier coating.Type: GrantFiled: October 20, 1989Date of Patent: December 17, 1991Assignee: Technology CorporationInventor: Thomas A. Taylor
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Patent number: 5064706Abstract: A carrier tape includes a film having an opening for receiving a semiconductor chip to be resin-molded by a pair of mold halves and outer lead holes formed around the periphery of the opening, a plurality of leads for mounting the semiconductor chip on the film, and a resin running portion cooperating, when the mold halves are closed with the film held between the mold halves, with a gate formed on a parting surface of one of the mold halves to define a resin running path which extends from a portion of the film outside the outer lead holes to the opening for guiding a molten resin into the mold halves while preventing the resin from entering the outer lead holes.Type: GrantFiled: December 8, 1988Date of Patent: November 12, 1991Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tetsuya Ueda, Haruo Shimamoto, Hideya Yagoura, Hiroshi Seki, Yasuhiro Teraoka
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Patent number: 5061544Abstract: A porous aluminum oxide film has a plurality of pores extending through the film. Each pore has a pair of smaller diameter pores and a larger diameter pore. The larger diameter pore is disposed within a central portion of the film with respect to the thickness of the film, and the smaller diameter pores are disposed upon both ends of the larger diameter pore.Type: GrantFiled: September 26, 1989Date of Patent: October 29, 1991Assignee: Kyoto UniversityInventors: Kazuhiro Wada, Nobuyoshi Baba, Sachiko Ono, Takako Yoshino
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Patent number: 5058705Abstract: A sound-absorbing cover element for use as a component in a gap-free acoustic cover including a perforated plate (22) covered on its side facing an enclosed space with a layer (24) of nonwoven fiber material which covers the perforations. The plate is lined on its side facing away from the enclosed space with a sound-inhibiting layer (28) covered on its side facing away from the perforated plate (22) with a cover film (30) which is impermeable to air.Type: GrantFiled: December 6, 1988Date of Patent: October 22, 1991Assignee: Sto AGInventor: Heinz Rheinlander
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Patent number: 5057351Abstract: A metallized high specular gloss polyethylene emissivity is made by a proceess of calendering a polyethylene film-fibril sheet between a smooth metal roll and a soft, resilient roll to form a sheet of high specular gloss, followed by vacuum metallization of the smooth high specular gloss surface. Such metallized sheets are useful as radiant barriers or roof liners for energy savings purposes.Type: GrantFiled: November 8, 1990Date of Patent: October 15, 1991Assignee: E. I. du Pont de Nemours and CompanyInventors: David C. Jones, Chi-Chang Lee
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Patent number: 5057347Abstract: A combined splicing tape and peg board for connecting ends of continuous feed computer paper to facilitate changing between different paper products or to add leaders so that the first serial numbered check or invoice is not lost to the feed process. The apparatus enables non-continuous feed paper products, such as envelopes or checks, to be integrated into a continuous feed paper flow. Continuous feed paper products are abutted at their ends on the adhesive side of a previously mounted tape. Non-continuous feed products are mounted on the tape and then onto the front side of the continuous feed paper in the printer. Spaced holes in the computer paper are freely received by rigid pegs positioned and sized for proper alignment of the edges of the paper. The tape has spaced holes for proper alignment over the edges of the paper. In one embodiment the tape holes are slightly smaller than the pegs to retain the tape on the board.Type: GrantFiled: September 21, 1989Date of Patent: October 15, 1991Inventor: William R. Alvin
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Patent number: 5053264Abstract: The plastic material net structure, particularly useful for geotechnical applications, has a plurality of holes uniformly arranged in rows and columns. The sheet further comprises portions which are elongated in the stretch direction, are mutually separated by the holes and have a predominance of molecules orientated in the stretch direction. The elongated portions extend from node elements which have a plurality of non-orientated molecules. The node elements are mutually joined by non-oriented transverse portions which extend between said holes in a direction which is substantially perpendicular to the elongated portions. The node elements have a thickness which is greater than the thickness of the transverse portions and of the elongated portions.Type: GrantFiled: December 14, 1989Date of Patent: October 1, 1991Assignee: RDB Plastotecnica S.p.A.Inventor: Mario Beretta
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Patent number: 5037686Abstract: A dry wall tape having a curved center section, reversely curved intermediate sections and outwardly tapering wings terminating in a thin edge. The tape can be used on inside and outside corner joints to obtain a straight line. Preferably the tape has triangular cut outs in the wings and removable end strips along the outer edges of the tape to facilitate taping of curved corners.Type: GrantFiled: July 27, 1989Date of Patent: August 6, 1991Inventor: John S. Conboy
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Patent number: 5032442Abstract: Disclosed herein is a fibrillated weatherproof web having a network structure, which can be produced with ease and is economical. The web comprises a multilayer composite film composed of at least two layers, one being a first layer (I) made of a first thermoplastic resin and the other a second layer (II) made of a second thermoplastic resin having a melting point lower than the first thermoplastic resin and containing at least 300 ppm of a light resistance imparting agent. A number of slits have been formed in a longitudinal or transverse direction. The web has been oriented at a draw ratio in a range of from 1.1 to 15 times. A nonwoven fabric making use of one or more fibrillated webs of the above sort and processes for the production of the web and nonwoven fabric are also disclosed.Type: GrantFiled: October 17, 1989Date of Patent: July 16, 1991Assignee: Nippon Petrochemicals Company, Ltd.Inventors: Shinji Yamazaki, Toshio Kotsuka
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Patent number: 4988577Abstract: A stiffener for a printed circuit board which comprises an elongated metallic electrically conductive bar. Extending from the bar are a plurality of spaced apart pins with these pins being in longitudinal alignment. Each pin is constructed to facilitate physical deformation such as by including a through opening within the body of the pin or with the pin including notched-out areas in the side walls of the pin. Upon the pin incurring a sufficiently powerful striking force, the pin will deform and expand laterally.Type: GrantFiled: June 8, 1989Date of Patent: January 29, 1991Assignee: Bussco Engineering, Inc.Inventor: John A. Jamieson
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Patent number: 4987019Abstract: This is a novel composition and method of creating one's own design for packages. A design sheet of a selected design or color is peelable from a backing sheet. The design sheet is provided with a plurality of non-contiguous holes cut therein and arranged in rows. The first sheet is cut between the holes in each row so that a plurality of peelable design building units are formed. These designed building units are placed on the package which is desired to decorate with the designer forming his own pattern.Type: GrantFiled: May 28, 1985Date of Patent: January 22, 1991Inventor: Carolyn S. Jones
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Patent number: 4980219Abstract: A carrier tape has a plurality of rows.times.a plurality of columns of IC device holes and two pairs of sprocket holes. A plurality of finger leads extending into each IC device hole and a conductive lead for connecting all of the finger leads are formed on the carrier tape. While the carrier tape is conveyed with feed teeth of a sprocket being meshed with one pair of sprocket holes, the finger leads and the conductive leads are formed, and solder is plating on both of the leads. Only in a bonding step, the carrier tape is conveyed with the feed teeth of the sprocket being meshed with the other pair of sprocket holes. Since the sprocket holes used in the bonding step are not deformed, highly precise positioning of IC devices required in bonding can be efficiently achieved.Type: GrantFiled: March 31, 1989Date of Patent: December 25, 1990Assignee: Casio Computer Co., Ltd.Inventors: Takashi Hiraide, Ituro Kusunoki, Joji Tajima
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Patent number: 4973507Abstract: A thin wood dimensionally stable flat laminate panel made out of one or more wood veneer sheets attached to one or more sheets of core ply material such as chipboard by adhesive. The thickness of the panel is in the range of from about 0.080 inches to about 0.180 inches. Apertures passing through the panel are positioned around or arranged along the edges of the panel in order to decrease warpage of the panel due to moisture passing to and from the wood veneer sheets at the edges of the panel as a result of moisture passing to the atmosphere from the sheets and from the atmosphere to said sheets. The apertures are preferably spaced the same distance apart. The apertures may be formed by using a commercial sewing machine to position the stitching along the edges of the panel. The stitching provides a capillary "wicking" action facilitating venting of the moisture from the wood veneer sheets to the atmosphere. Stitching may also be used to attach a bias cover material around the edges of the panel.Type: GrantFiled: January 23, 1989Date of Patent: November 27, 1990Inventor: Richard C. Horian
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Patent number: 4954383Abstract: Metallized plastic sheet film products improved by being perforated through their surfaces are disclosed. These sheet products can be incorporated into improved strength composites since their perforations permit glue through and prevent delamination and shear previously observed with metallized plastic sheet film products. In addition, the perforations can be used to adjust the conductivity/resistance of the electrically conductive sheet films.Type: GrantFiled: July 29, 1988Date of Patent: September 4, 1990Assignee: Southwall Technologies, Inc.Inventors: Robert N. King, Gerald R. Behling
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Patent number: 4954385Abstract: A carton pad having a bottom portion with dimensions essentially corresponding to a base area of a carton and having several tabs which, on a respective substantially straight side thereof, are joined to the bottom portion and are otherwise free and can bend out of a plane of the bottom. The straight sides of the respective tabs are arranged substantially perpendicular to a direction in which a row of tabs extends, with the row of tabs being divided at a center thereof in the longitudinal direction, into two mutually mirror-symmetrically arranged halves. Furthermore, a gabled roof-shape support of variable gable angle is provided, with one roof edge thereof engaging in a tab from one of the halves of the row of tabs, and the other roof edge thereof engaging in a tab of the other, mirror-symmetrically arranged row of tabs, so that the roof edges are supported upon the substantially straight sides of the tabs that are connected to the bottom portion.Type: GrantFiled: October 18, 1988Date of Patent: September 4, 1990Assignee: Haarkosmetik and ParfumerienInventor: Heinz Samann
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Patent number: 4952268Abstract: The present invention relates to an apparatus and method and uses a thin, yet strong plastic film as the intermediate layer for the waterproofing material and the film has a plurality of perforations therein. The film is highly resistant to crack propagation, and acts as a barrier to crack propagation between adjacent asphalt layers, thus providing superior protection from the elements. The asphalt layers are interconnected with each other through the perforations in the polyester support layer. Because of the strength of the polyester film, only a very thin layer of polyester is necessary and this results in a substantial cost savings. As an alternative to coating, it is possible to extrude or laminate the asphalt onto the PET film. Also a layer of asphalt may be applied only to one side of said film and extruded through the perforations with heads on the columns so formed to attach the asphalt to the film.Type: GrantFiled: May 2, 1989Date of Patent: August 28, 1990Assignee: Devtech Labs, Inc.Inventors: Martin H. Beck, Louis D. Tacito, Warren Arseneau, Robert J. Booth, Khalid Jasim
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Patent number: 4919993Abstract: Flexures, and a method for creating flexures, for use in micromechanical sensors such as accelerometers in which a first member is pivotally connected to a second member. In one aspect, the invention provides first and second flexures connecting the first and second members, the flexures permitting rotation about a common hinge axis. The flexures have a crossed configuration that provides increased stability. Each flexure is made by etching grooves in the opposite wafer surface, the positions and depths of the grooves being selected so as to form a flexure therebetween.Type: GrantFiled: February 27, 1989Date of Patent: April 24, 1990Assignee: Sundstrand Data Control, Inc.Inventor: James R. Woodruff
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Patent number: 4900607Abstract: A sealing profile formed of rubber or rubber-like material is provided for sealing tunnel segments which have circumferential recesses. There is a plurality of slotted grooves running parallel in the lengthwise direction on the base side of the profile and a plurality of channels running parallel in the lengthwise direction, the number of channels being no greater than the number of slotted grooves and at least one channel being in alignment with a corresponding groove.Type: GrantFiled: August 30, 1988Date of Patent: February 13, 1990Assignee: Phoenix AktiengesellschaftInventors: Siegfried Glang, Werner Grabe
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Patent number: 4879155Abstract: Pleated cloth made of thermoplastic resin is enhanced in its appearance by providing a film pattern section to the end of the cloth to melt a certain part of pleating. This invention relates to an improved pleated cloth and the method for producing the same, and the method for producing the improved pleated cloth includes the steps of: forming pleating on the cloth made of thermoplastic resin; melt-forming a film pattern section on the adequate area of the pleating lines by using a patterned roller and an ultrasonic generator; and erasing a certain area of the pleating lines by the provision of the film pattern section. The product as above improves over the prior art in that it eliminates the need for the sewing machine and thread used in conventional hemming.Type: GrantFiled: May 26, 1987Date of Patent: November 7, 1989Inventor: Mitsuo Fujisawa
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Patent number: 4859517Abstract: A formable honeycomb panel is disclosed that comprises a core layer and two skin panels of sheet material bonded to opposite sides of the core layer. At least one of the skin panels is porous and has an effective stiffness that is substantially less than the stiffness of a solid sheet of material of the same thickness. The stiffness of the porous skin panel is sufficiently low so that bending of the honeycomb panel is accommodated primarily by deformation of the porous skin panel before the core layer collapses or the adhesive bonds between the core layer and the skin panels fail.Type: GrantFiled: March 16, 1987Date of Patent: August 22, 1989Assignee: Hexcel CorporationInventor: H. Robert Hull
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Patent number: 4839216Abstract: The present invention provides for a process for transforming a substantially continuous web of substantially planar, deformable material having an indefinite length, a first surface, and a second surface into a formed material. The material has a transformation temperature range. The process comprises the following steps:(a) The web of material is provided on a forming structure with the first surface of the web of material proximate a forming surface of the forming structure. The forming surface moves in a direction of the length of the web of material and carries the web of material in that direction.(b) A liquid stream is applied to the second surface of the web of material. The liquid stream has sufficient force and mass flux to cause the web of material to be deformed toward the forming surface, such that the material acquires a substantial three-dimensional conformation.Type: GrantFiled: June 1, 1987Date of Patent: June 13, 1989Assignee: The Procter & Gamble CompanyInventors: John J. Curro, Alan J. Trusty, George M. Vernon
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Patent number: 4835033Abstract: Armor plate (10) is disclosed as including at least one hardened steel plate (14,18) having triangular holes (16,20) arranged in a repeating pattern. Webs (40,42 and 44,46) are located between the triangular holes to provide lightweight armor without any ballistic gaps. The triangular holes (16,20) are shaped and positioned with respect to each other such that the webs (40,42 and 44,46) are generally straight. Each steel plate disclosed has its associated triangular hole (16,20) provided with the same size and shape as each other which are preferably in the shape of equilateral triangles.Type: GrantFiled: March 1, 1988Date of Patent: May 30, 1989Assignee: General Dynamics Land Systems, Inc.Inventors: Richard A. Auyer, Robert J. Buccellato, Ernest N. Petrick, Needangalam S. Sridharan
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Patent number: 4824703Abstract: A trim member is fixed to one sheet wall of a two sheet article of fabric or leather made by cojoining the two sheets around their edges, by locating a rigid plate between the sheet walls, forming an opening in the one sheet wall to bear the trim member over the plate and providing the trim member with a tongue which enters the opening and sandwiches an area of the one sheet wall overlying the plate between the tongue and the trim member.Type: GrantFiled: June 28, 1985Date of Patent: April 25, 1989Assignee: ChanelInventor: Lehmann Bernard
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Patent number: 4821871Abstract: A flexible rubber strip or sheet is described which is useful as surfacing material on an idler pulley or the like. The rubber strip includes a row of openings along each end. A pair of spaced-apart metal strips is secured to each end of the rubber strip. A portion of each metal strip is exposed in the openings to enable it to be welded to the surface of a pulley to secure the rubber strip to the pulley to thereby provide a wear surface.Type: GrantFiled: January 13, 1988Date of Patent: April 18, 1989Inventor: Harold L. Herren
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Patent number: 4818579Abstract: The invention provides a sheet for forming twisted flaps in a continuous arrangement which comprises a sheet material and a stitching thread attached to the sheet material to form one or a plurality rows of stitches in a wave pattern or stitches in a reticular pattern, the sheet material being formed with incisions each in each of areas surrounded by stitches. When the thread is pulled, the sheet material is opened at the incisions to form a multiplicity of raised, curved flaps inclined with respect to the longitudinal direction of the thread. Methods of producing such sheets are also provided. The sheet provided is advantageously usable as a water contact material for biological water treatment, slope protective material for civil engineering work, etc.Type: GrantFiled: November 17, 1987Date of Patent: April 4, 1989Assignee: Earthnics CorporationInventor: Hiroshi Uchida
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Patent number: 4803110Abstract: A mask for deposition of electrically-conductive paste material on a ceramic base, in the construction of electric circuits having multiple electronic chips is formed of molybdenum with a titanium nitride coating. The coating passes through apertures of a mesh on one side of the mask and continues through the apertures to appear in cutouts of stencils along the opposite side of the mask. Other elements of the fourth group of the periodic table, such as zirconium, may be employed in lieu of the titanium in the formation of the coating. The coating is uniformly applied by a sputtering procedure in which nitrogen is sprayed uniformly along the mask and away from a titanium target. In an argon plasma, the nitrogen and the titanium are sputtered onto the molybdenum where the titanium and nitrogen combine to form the coating.Type: GrantFiled: September 15, 1986Date of Patent: February 7, 1989Assignee: International Business Machines CorporationInventors: Kie Y. Ahn, Saryadevara Basavaiah, Stephen B. Brodsky, Charles A. Cortellino, Joseph E. Levine
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Patent number: 4752518Abstract: In a graphite material comprising a mass of expanded graphite particles compressed together so as to form a graphite foil, the graphite foil is provided with a plurality of apertures disposed on at least one surface thereof so as to substantially prevent formation of bubble-like deformations which occur when the graphite foil is heated and/or placed in a vacuum. The method of making the invented foil and devices used to make said foil are also disclosed.Type: GrantFiled: July 31, 1986Date of Patent: June 21, 1988Assignee: Polycarbon, Inc.Inventors: James L. Lohrke, Janet M. Sterry, Michael D. Lyons
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Patent number: 4749596Abstract: Dryer-added fabric conditioning articles and methods utilizing a fabric softener agent and a polymeric soil release agent. More specifically, damp fabrics are commingled with softener active and polymeric soil release agent in an automatic clothes dryer and are provided with a soft, antistatic finish and soil release benefits concurrently with the drying operation. The softening and antistatic soil release agents herein are preferably employed in combination with a dispensing means adapted for use in an automatic dryer.Type: GrantFiled: March 3, 1987Date of Patent: June 7, 1988Assignee: The Procter & Gamble CompanyInventors: Mark D. Evans, Gregory B. Huntington, Robert L. Stewart, Peter H. Wolf, Roger E. Zimmerer
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Patent number: 4743486Abstract: Waisted holes are used when stretching a perforated starting material to form a mesh structure having molecularly-orientated strands. The holes define strand-forming zones which have a center part of greater width than end parts; orientation is initiated in the end parts and travels towards the middle until the whole of the strand-forming zone has been stretched out to form a molecularly-oriented strand. In the molecularly-orientated strand, there are three portions in which the middle of the strand has moved away from the ends of the strand during stretching the same distance as the edges of the strand, these portions corresponding to the end and center parts; in between, the middle of the strand has moved away from the respective end during stretching a different distance to the edges of the strand.Type: GrantFiled: April 14, 1986Date of Patent: May 10, 1988Assignee: P.L.G. Research LimitedInventors: Frank B. Mercer, Keith F. Martin
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Patent number: 4735842Abstract: A light weight entangled nonwoven fabric formed by fluid rearrangement/entangling of an oriented web of fibers comprising at least 75% polyolefin staple fibers and displaying excellent machine direction and cross direction strength.Type: GrantFiled: July 13, 1987Date of Patent: April 5, 1988Assignee: ChicopeeInventors: Conrad C. Buyofsky, John W. Kennette