Penetration Resistant Layer Patents (Class 428/911)
  • Patent number: 7500422
    Abstract: A modular construction system that can be used to construct a variety of structural units including armor shields for vehicles or personnel, energy generating grids, thermal insulating or transmitting structures, acoustic insulating or reflecting structures, electromagnetic shields, etc. The modular construction system uses modular discs which are configured to be coupled or connected together to form or develop any desired structure. The modular discs include substantially circular base portions, star-shaped projections extending from the upper surface of the substantially circular base portion, and cooperating connecting structures that allow for the plurality of modular discs to be connected to one another.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: March 10, 2009
    Inventor: Robert Mazur
  • Patent number: 7472637
    Abstract: A hierarchical composite armor is disclosed for protection against projectile impact comprising a plurality of platelets and a matrix substrate. The plurality of platelets are distributed in at least a first layer and in a second layer parallel to the first layer wherein the distribution of the platelets in the second layer is at least slightly offset from and overlaps the distribution of platelets in the first layer. The platelets are less thick than the overall thickness of the composite armor, and the platelets include a first material. The matrix substrate encapsulates the platelets, and the matrix substrate is different than the first material. The platelets and matrix substrate form an interactive network that dissipates a projectile's impact energy over an area much greater than the size of the projectile by synergistically transmitting the impact energy from platelets close to an impact location to platelets away from the impact location.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: January 6, 2009
    Assignee: Massachusetts Institute of Technology
    Inventors: Sai Sarva, Adam D. Mulliken, Mary C. Boyce, Alex J. Hsieh
  • Patent number: 7470459
    Abstract: Ballistic panels formed by the lamination of highly oriented ultra high molecular weight poly(ethylene) slit films and sheets useful in the fabrication of ballistic containers are described.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: December 30, 2008
    Assignee: BAE Systems Tensylon H.P.M., Inc
    Inventors: Gene C. Weedon, Charles Paul Weber, Jr., Kenneth C. Harding
  • Patent number: 7465500
    Abstract: Methods and apparatus are provided for a shield to protect a surface from the impact of hyper-velocity projectiles. The apparatus comprises a foam material that is configured to cover the surface to be protected and is attached directly to that surface. A coating material is typically disposed on the outer surface of the foam material and may penetrate the foam material to a predetermined depth. The foam material and the coating material are selected to form a composite having predetermined values of sonic velocity, toughness, and thermal conductivity. The composite of foam material and coating material can be significantly lighter in weight than a metal shield having equivalent protective characteristics.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: December 16, 2008
    Assignee: The Boeing Company
    Inventors: Sherwin Yang, Nathan J. Hoffman, Adon Delgado, Jr., Alan V. Von Arx, Michael P. Moriarty, Kathleen M. Sevener, Gerard D. Pelletier
  • Patent number: 7461453
    Abstract: The invention is an explosive resistant liner, located inside an enclosed space, and made from a blast resistant material. The liner is preferably constructed inside the enclosed space, consisting of lay-up, curing and assembly steps utilizing a collapsible tool. The invention is particularly applicable to blast protection for aircraft cargo holds.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: December 9, 2008
    Assignee: Friedman Research Corporation
    Inventor: D. Erich Weerth
  • Patent number: 7424748
    Abstract: A quick release system for releasing armor plates from a vest or other garment including a pocket associated with the front torso portion of the vest for selectively receiving a first armor plate, a pocket associated with the rear torso portion of the vest for selectively receiving a second armor plate, and a flexible retainer element in conjunction with at least one connector element associated with each of the front and rear pockets for selectively retaining the first and second armor plates therewithin, pulling the flexible retainer element releasing the armor plates from their respective pockets. A release handle is located on the front of the vest and is attached to the retainer element for facilitating pulling of the retainer element to release the front and rear armor plates in one easy motion.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: September 16, 2008
    Assignee: Eagle Industries Unlimited, Inc.
    Inventors: Todd Robert McDunn, Shane Dwight Woods
  • Patent number: 7407900
    Abstract: A ballistic composite comprises multiple layers of a fabric having unidirectional ballistic resistant yarns in at least two layers and a resin layer between each pair of such multiple layers adhered to the ballistic resistant yarns but not encapsulation the same and not penetrating the layer of fabric. The ballistic yarn layers are at 90°±5° with respect to each other and the ballistic resistant yarns are stabilized by being woven in a second fabric. The second fabric is formed of yarns having a substantially lower tenacity and tensile modulus than the ballistic resistant yarn. The ballistic resistant yarns have a tenacity of at least about 15 grams per denier and a modulus of at least about 40 grams per denier. The resin in the resin layer has a modulus of at least about 7000 psi.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: August 5, 2008
    Assignee: Barrday, Inc.
    Inventor: David Verlin Cunningham
  • Patent number: 7393588
    Abstract: A flexible, penetration resistant structure has a solids layer with a pattern of intersecting gap lines with critical gap cross section geometry, a flexible fiber or fabric layer backing, and a critical bonding layer attaching the solids layer to the flexible backing layer; where the gap geometry upon impact by a select penetrator type causes a controlled response and distributes impact energy in the structure, placing elements of the solids layer adjacent to the impact point mainly in vertical and lateral compression, the bonding layer mainly in shear, the fabric layer beneath the point of impact mainly in bending pressure, and the fibers within the fabric layer, particular those fibers perpendicular to the axis of the gap segment impacted, mainly in tension; and where the applicable class of penetrators is loosely defined as within a certain range of striking energy per unit area of penetrator contact area cross section.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: July 1, 2008
    Assignee: Warwick Mills, Inc.
    Inventor: Charles A. Howland
  • Patent number: 7393572
    Abstract: Barrier structure placeable as a projectile-disabling, anti-liquid-leakage protective shield for the outside surface of a container designed to hold liquid of a certain nature including (a) a first-type (innermost) layer formed as an expanse of high-elastomeric material which is substantially fully self-healing via elastomeric behavior with regard to a piercing projectile wound, (b) a second-type (intermediate) layer disposed adjacent one side of the first-type layer as an expanse including a body of substantially the same high-elastomeric material in which there is contained a distribution of liquid-imbiber beads which react, and expand three-dimensionally in relation, to contact with liquid of the mentioned certain nature, and (c) a third-type (outermost) layer disposed adjacent the second-type layer, and formed as an expanse of substantially the same high-elastomeric material employed in the first- and second-type layers.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: July 1, 2008
    Assignee: High Impact Technology, L.L.C.
    Inventors: Russell Allen Monk, James Jackson Milham Henry, Thomas Stegen Ohnstad
  • Publication number: 20080139071
    Abstract: Ballistic resistant fabric laminates are provided. More particularly, reinforced, delamination resistant, ballistic resistant composites are provided. The delamination resistant, ballistic resistant materials and articles may be reinforced by various techniques, including stitching one or more ballistic resistant panels with a high strength thread, melting the edges of a ballistic resistant panel to reinforce areas that may have been frayed during standard trimming procedures, wrapping one or more panels with one or more woven or non-woven fibrous wraps, and combinations of these techniques. The delamination resistant, ballistic resistant panels may further include at least one rigid plate attached thereto for improving ballistic resistance performance.
    Type: Application
    Filed: December 29, 2005
    Publication date: June 12, 2008
    Inventors: Ashok Bhatnagar, Lori L. Wagner, David A. Hurst
  • Patent number: 7383762
    Abstract: The invention provides a composite armor plate for absorbing and dissipating kinetic energy from high velocity, armor-piercing projectiles, as well as from soft-nosed projectiles, the plate comprising a single internal layer of pellets which are bound and retained in plate form by an elastic material, substantially internally within the elastic material, such that the pellets are bound in a plurality of rows and columns providing mutual lateral support, the pellets being made of ceramic material, wherein a majority of each of the pellets is substantially in contact with at least three adjacent pellets and at least a majority of the pellets are substantially cylindrical in shape with at least one convexly-curved end face, further characterized in that spaces formed between the adjacent cylindrical pellets are only partially filled with a material for preventing the flow of soft metal from impacting projectiles through the spaces, the flow-preventing material being in the form of an insert which is in contact w
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: June 10, 2008
    Inventor: Michael Cohen
  • Patent number: 7378146
    Abstract: The present invention related to an improved structure of an optically transparent element that can be used in optical scanners, supermarket scanners, lenses for eyeglasses, etc. The application of oxynitride PECVD films provide good hardness and optical transparency. Such films displaying these physical properties are extremely useful as a scratch resistant coatings in lenses and systems in which an article contacts a transparent surface, such as in scanners and in environments in which intermittent, environmental contact occurs such as in displays for computers and suchlike and in liquid crystal displays, touch displays and compact disks.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: May 27, 2008
    Assignee: International Business Machines Corporation
    Inventors: Jeffrey Curtis Hedrick, David Andrew Lewis, Stanley Joseph Whitehair
  • Publication number: 20080119099
    Abstract: Flexible composites which are ballistic and stab resistant. The composites are formed from at least one, and preferably a plurality of, fibrous layer comprising a network of high tenacity fibers. A stack of a plurality of fibrous layers is consolidated in a desired pattern over a substantial portion of its surface area which results in areas which are consolidated and areas that are unconsolidated. The unconsolidated areas provide flexibility to the overall composite structure and the structure is resistant to ballistic projectiles and/or sharp objects. Body armor formed from the composites is comfortable to wear and reduces the degree of trauma to the wearer as a result of impact by the ballistic projectile or sharp object.
    Type: Application
    Filed: December 6, 2005
    Publication date: May 22, 2008
    Inventor: Igor Palley
  • Patent number: 7354875
    Abstract: The invention relates to a fabric having both stab resistant and anti-ballistic properties. The fabric is made of yarn of a weight greater than about 500 dtex, and the fabric has a minimum shrinkage factor of at least about 1% achieved through a densification treatment. The invention further relates to a method of producing a such a fabric having the steps of agitating a fabric made of a yarn of a weight greater than about 500 dtex, substantially removing a spin finish from the fabric before, during or after the agitating step, and drying the fabric.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: April 8, 2008
    Assignee: Teijin Twaron GmbH
    Inventors: David R. Hand, Rudiger Hartert, Christian Bottger
  • Patent number: 7348053
    Abstract: Ballistic panels formed by the lamination of highly oriented ultra high molecular weight poly(ethylene) slit films and sheets useful in the fabrication of ballistic containers are described.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: March 25, 2008
    Assignee: Bae Systems Tensylon H.P. Material, Inc
    Inventors: Gene C. Weedon, Charles Paul Weber, Jr., Kenneth C. Harding
  • Patent number: 7340779
    Abstract: An article is disclosed to protect a wearer from spike and ballistic threats that is made from a spike resistant panel and a ballistic resistant panel. Each panel is made from flexible fabric layers. The fabrics in the spike resistant panel are made from first yarns having a linear density of from 50 to 600, with a plurality of filaments. There are 40 to 100 first yarns per inch in both the warp and fill directions. The fabrics in the ballistic resistant panel are made from second yarns having a linear density of from 100 to no more than 840 denier with a plurality of filaments, which provide from 20,000,000 to no more than 90,000,000 filament crossovers per square inch.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: March 11, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Minshon J. Chiou
  • Publication number: 20080006020
    Abstract: An armor module and an explosive material therefore, which explosive material is normally retained at a less sensitive position, and upon demand it is modified into a more sensitive position, where its initiation ability is upgraded and wherein the modification is carried out by heating the explosive material.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 10, 2008
    Inventors: Benjamin Keren, Yael Cohen-Arazi, Samuel Friling, Erez Hanina
  • Patent number: 7311963
    Abstract: The invention relates to a process for the production of a shaped article comprising the compression of one or more fiber layers containing polyolefin fibers. The invention also relates to shaped articles obtainable with the process according to the invention and their use in anti-ballistic applications. In the process according to the invention the fiber layers contain 0.02 to 25 wt. % of a solvent for the polyolefin. The shaped articles obtained have an improved anti-ballistic quality.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: December 25, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Floribertus C. H. Mokveld, Jean H. M. Beugels
  • Publication number: 20070293107
    Abstract: Composite assemblies are disclosed. Methods of making and using composite assemblies are also disclosed.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 20, 2007
    Inventors: Brian J. Follo, Frederick P. Isley
  • Patent number: 7300893
    Abstract: Protection against blast and ballistic damage is improved by encapsulating or sandwiching rigid inclusions (for example, tiles) or a rigid plate by a high-strain rate hardening elastomer. Typical high-strain rate hardening elastomers include polyurea and polyurethane. If desired, the inclusion or plate may be wrapped in a cloth and/or fabric before encapsulation/sandwiching. The armor may be used independently of a substrate or may be attached by any means to a substrate that it is intended to protect.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: November 27, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Roshdy George S. Barsoum, Dudt Philip
  • Patent number: 7300515
    Abstract: This invention provides facing materials for cementitious boards such as those including Portland cement or gypsum cores. The preferred facing material includes, in a first embodiment, a facing layer having an areal weight of about 300 grams/M2, and an air permeability rating of no greater than about 300 CFM/ft2 (FG 436-910 test method). The facing layer reduces the penetration of a slurry of cementitious material during the manufacture of a cementitious board, while permitting the water vapor from the slurry to pass therethrough. The facing materials of this invention can be designed to substantially eliminate the fouling of rolls used in continuous processing of such boards without the use, or with greatly reduced use, of costly viscosity control agents in the slurry.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: November 27, 2007
    Assignee: Saint-Gobain Technical Fabrics Canada, Ltd
    Inventor: John Frederick Porter
  • Patent number: 7300892
    Abstract: This invention provides facing materials for cementitious boards such as those including Portland cement or gypsum cores. The preferred facing material includes, in a first embodiment, a facing layer having an areal weight of about 300 grams/M2, and an air permeability rating of no greater than about 300 CFM/ft2 (FG 436-910 test method). The facing layer reduces the penetration of a slurry of cementitious material during the manufacture of a cementitious board, while permitting the water vapor from the slurry to pass therethrough. The facing materials of this invention can be designed to substantially eliminate the fouling of rolls used in continuous processing of such boards without the use, or with greatly reduced use, of costly viscosity control agents in the slurry.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: November 27, 2007
    Assignee: Saint-Gobain Technical Fabrics Canada, Ltd.
    Inventor: John Frederick Porter
  • Patent number: 7288314
    Abstract: The invention relates to a process for the manufacture of a ballistic-resistant moulded article in which a stack of monolayers is formed, each monolayer containing unidirectionally oriented reinforcing fibres and at most 30 mass % of a plastic matrix material, the reinforcing fibres being highly-drawn polyethylene fibres, and with the fibre direction in each monolayer being rotated with respect to the fibre direction in an adjacent monolayer, the stack then being compressed at a pressure of more than 25 MPa and a temperature between 125 and 150° C., and the plastic matrix material having a 100% modulus of at least 3 MPa.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: October 30, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Martinus Johannes Nicolaas Jacobs, Jean Hubert Marie Beugels, Marc Blaauw
  • Patent number: 7288493
    Abstract: Flexible body armor formed from flexible composites which have improved knife-stab resistance. The body armor is formed from composites which include layers of a fabric base, formed from high tenacity fibers, and a rubber layer bonded to the fabric base. A thermoplastic bonding layer may be used to bond the fabric and rubber layers together. To provide ballistic resistance, the body armor may also include a ballistic resistant composite of a network of high tenacity fibers.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: October 30, 2007
    Assignees: Honeywell International Inc., JHRG LLC
    Inventors: Ashok Bhatnagar, Huy X. Nguyen, John E. Holland
  • Patent number: 7284280
    Abstract: An energy weapon protection device to be worn by a live potential target includes a generally flexible main panel having three main elements, a generally flexible, generally planar electrically non-conductive outer insulator panel, an electrically conductive inner conductive panel and an electrically non-conductive insulating backing panel. The inner conductive panel is mounted on the insulating back panel in generally parallel alignment and the outer insulator panel is mounted on the inner conductive panel in generally parallel alignment thereby forming the main panel, and the main panel is operative to receive an electrical pulse from an energy weapon through the outer insulator panel into the inner conductive panel which completes the electric circuit for the energy weapon and the insulating backing panel generally preventing electric current from passing therethrough from the inner conductive panel such that the live potential target is protected from the electrical pulse generated by the energy weapon.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: October 23, 2007
    Inventor: Gregory Russell Schultz
  • Patent number: 7276458
    Abstract: The invention provides a composite textile or material comprising a substrate of high strength fibers, and having a natural or synthetic diamond coating bonded thereto. Preferably, the textile is a high strength fabric including or made from aramide fibers, and the natural or synthetic coating is applied by a process such as plasma or flame spraying, chemical vapor deposition, sintering, or fast pulse laser deposition. The textile or fabric can preferably be used to make or reinforce protective clothing including vests, hats, helmets, jackets, pants, shoes or boots, coats, blankets, rugs, curtains, and the like. The textile or fabric may also include an iodine or iodine containing coating, to absorb radioactive radiation, and to kill airborne pathogens, including bacteria and viruses.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: October 2, 2007
    Inventor: Sheree H. Wen
  • Patent number: 7241709
    Abstract: The present invention relates to penetration resistant life protection articles, including spike penetration resistant life protection articles, and preferably spike and ballistic projectile penetration resistant life protection articles.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: July 10, 2007
    Assignee: E. I du Pont de Nemours and Company
    Inventors: Minshon J. Chiou, Larry John Prickett
  • Patent number: 7235285
    Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: June 26, 2007
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventor: Yukihiro Nomura
  • Patent number: 7210390
    Abstract: A personal ballistic protective device having a first layer comprised of ballistic material and a second layer comprised of buoyant material. The second layer preferably has a density sufficient to counteract a density of at least the first layer of ballistic material such that the first layer and the second layer have a combined density substantially equal to or less than the density of water. A method of counteracting negative buoyancy in a personal protective device is also disclosed.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: May 1, 2007
    Assignee: Simula, Inc.
    Inventors: John Olson, Jeffrey A. Mears, Rob Monks, P. Victor Kelsey
  • Patent number: 7208216
    Abstract: A disposable cutting sheet for cutting and preparation of food items thereon includes a first cut resistant layer having an absorbent ply and a thermoplastic ply, wherein the thermoplastic ply includes a plurality of apertures therethrough. The sheet further includes a second liquid impervious layer including an absosrbent ply and a thermoplastic ply, wherein the absorbent ply of the second layer is disposed below and secured to the absorbent ply of the first layer. The cutting sheet further includes a score line disposed across the substrate for separating the cutting sheet into two portions, wherein the score line extends fully through the cutting sheet near edges of the cutting sheet to create a tear notch. The score line extends through the thermoplastic ply of the cut resistant layer in an area of the cutting sheet between the edges thereof.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: April 24, 2007
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventors: Bryan L. Ackerman, William D. Price, William E. LeBoeuf, Virginia D. Karul
  • Patent number: 7166343
    Abstract: Methods of reducing exposure to latex comprise forming an item comprising a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units. The first randomly repeating monomer unit has the structure: wherein R1 is H, or C1-2 alkyl, and n is 1 or 2; and the second randomly repeating monomer unit has the structure: wherein R2 is a C3-19 alkyl or C3-19 alkenyl. At least 50% of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: January 23, 2007
    Assignee: The Procter & Gamble Company
    Inventors: Isao Noda, Michael Matthew Satkowski, Gregory Churchill Ames
  • Patent number: 7163731
    Abstract: An armor assembly for protecting a body disposed behind said armor assembly, wherein the armor assembly comprises at least one layer of material made of an essentially brittle material, said layer extending slanted relative the expected trajectory of an oncoming firearm projectile.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: January 16, 2007
    Assignee: Rafael Armament Development Authority, Ltd.
    Inventors: Yehoshua Yeshurun, Yechezkel Ashuach, Zvi Rosenberg, Moshe Rozenfeld
  • Patent number: 7148162
    Abstract: A ballistic laminate structure includes a first high-performance unifabric composite. The unifabric composite incorporates an array of unidirectionally-oriented fiber bundles carried on a fiber-stabilizing scrim and having a tensile strength greater than 7 grams per denier. A second high-performance unifabric composite includes an array of high performance, unidirectionally-oriented fiber bundles. The fiber bundles of the second composite are carried on a fiber-stabilizing scrim and have a tensile strength greater than 7 grams per denier. The first and second unifabric composites are cross-plied at an angle and bonded together to form the ballistic laminate structure.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: December 12, 2006
    Inventors: Andrew D. Park, Dave Park, Alexander J. Park
  • Patent number: 7132380
    Abstract: A penetration-resistant material having at least a double layer of woven fabric having a first layer of fabric composed of a first set of threads having 3.5 to 20 threads/cm, a linear density of at least 210 dtex, and at least 65% of the fabric weight, and a second set of threads having 0.5 to 16 threads/cm and a linear density of at least 50 dtex and a second layer of fabric composed of a first set of threads having 0.5 to 16 threads/cm and a linear density of at least 50 dtex, and a second set of threads having 3.5 to 20 threads/cm, a linear density of at least 210 dtex, and at least 65% of the fabric weight. In each layer, the second set are transverse to the first set and the ratio of the number of threads/cm of the second set to that of the first set is >1.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: November 7, 2006
    Assignee: Teijin Twaron GmbH
    Inventors: Christian Böttger, Achim Fels, Christoph Baumgart, Bärbel Dorloff-Lumpe
  • Patent number: 7104177
    Abstract: Silicon infiltration technology, e.g., siliconizing or reaction-bonding, is used to produce ceramic-rich composite bodies having utility as ballistic armor. In the main embodiment of the invention, the ballistic armor includes a reaction-bonded silicon carbide body (RBSC). Good ballistic performance can be advanced by loading the porous mass or preform to be infiltrated to a high degree with one or more hard fillers, and by limiting the size of the morphological features making up the composite body. This control of “grain size” can be accomplished by controlling the size of the largest particles making up the porous mass to be infiltrated, but also of importance is controlling the processing conditions, particularly by controlling the factors that cause grain growth, coarsening of microstructure, and/or grain coalescence.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: September 12, 2006
    Inventors: Michael K. Aghajanian, Allyn L. McCormick
  • Patent number: 7101818
    Abstract: Dense, highly stable, high performance ballistic material comprises at least one woven layer of ballistic grade fiber (preferably a stack of such layers) and at least one nonwoven layer of fabric which is entangled with the woven or unidirectional layer by needle felting. The resulting core material does not require assembly of individual woven layers during subsequent manufacture of ballistic articles and exhibits excellent ballistic performance at low areal densities and thicknesses.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: September 5, 2006
    Assignee: Tex Tech Industries, Inc.
    Inventors: Allen L. Price, David F. Erb, Jr., Eric D. Ritter
  • Patent number: 7090906
    Abstract: Fire resistant safety glasses are provided that included wire glasses having another layer of fire resistant material. In certain embodiments, a piece of wire glass has a sheet of fire resistant film adhered thereto. Such glasses have improved impact resistance compared to conventional wire glasses. Fire resistant safety glasses are also provided that combine improved impact resistance and fire protection and in some embodiments, improved thermal insulation, improved reflectivity and shielding against ionizing radiation. Safety glasses of this invention can be made using non-tempered or tempered glass, fire resistant plastics, fire resistant fiberglass, ceramics and other fire resistant glazing materials, and can be made in multiple layers, having one or more pieces of wire glass or fire resistant glazing materials. Fire resistant safety glasses of this invention can be made inexpensively and can have improved properties compared to conventional wire glass.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: August 15, 2006
    Assignee: O'Keeffe's, Inc.
    Inventor: William O'Keeffe
  • Patent number: 7087296
    Abstract: This invention provides multi-layered composites, laminates and composite joints in which at least one resin-impregnated, fiber-containing layer is joined or laminated to a core layer having a lower flexural modulus or higher elongation at break, higher toughness, or a combination of all or some of these properties. The multi-layer composite produced by laminating or joining these materials together has improved shearout, impact and cutting resistance, since stresses caused by outside forces can be more widely distributed throughout the composite.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: August 8, 2006
    Assignee: Saint-Gobain Technical Fabrics Canada, Ltd.
    Inventor: John Frederick Porter
  • Patent number: 7078088
    Abstract: A disposable cutting sheet for Processing food items thereon includes a cut-resistant layer including a thermoplastic material ply and an absorbent ply, wherein the first layer has a surface area and wherein the thermoplastic material of the first layer includes a plurality of apertures therethrough. The cutting sheet further includes a second layer including an absorbent ply selected from the group consisting of a hydrophilic material, an oleophilic material, or a composite material having hydrophilic and oleophilic properties and a barrier ply including a thermoplastic material ply. The absorbent ply of the first layer is disposed atop and secured to the absorbent ply of the second layer such that portions of the thermoplastic and absorbent plies of the second layer form a border completely surrounding the first layer.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: July 18, 2006
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventors: William D. Price, Bryan L. Ackerman, William E. LeBoeuf, Virginia D. Karul
  • Patent number: 7073538
    Abstract: Bi-directional and multi-axial fabrics, fabric composites, ballistically resistant assemblies thereof, and the methods by which they are made. The fabrics are comprised of sets of strong, substantially parallel, unidirectional yarns lying in parallel planes, one above the other , with the direction of the yarns in a given plane rotated at an angle to the direction of the yarns in adjacent planes; and one or more sets of yarns having lower strength and higher elongation interleaved with the strong yarns. The fabrics of the invention provide superior ballistic effectiveness compared to ordinary woven and knitted fabrics but retain the ease of manufacture on conventional looms and knitting machines.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: July 11, 2006
    Assignee: Honeywell International Inc.
    Inventors: Ashok Bhatnagar, Elizabeth Stroud Parrish
  • Patent number: 7063880
    Abstract: A method of manufacturing a single use processing substrate includes the step of extruding a first layer having ridges and troughs between the ridges. The method further includes the steps of placing a second layer into the troughs while the first layer is pliant and compressing the pliant ridges so that the second layer is bound into the troughs.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: June 20, 2006
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventor: Virginia D. Karul
  • Patent number: 7063879
    Abstract: A disposable cutting sheet for processing food items thereon includes a first cut-resistant layer having a first surface area and including a first absorbent ply and a thermoplastic material ply. The cutting sheet further includes a second layer having a second surface area and including a second absorbent ply and a thermoplastic material ply, wherein the absorbent ply of the first layer is disposed atop and secured to the absorbent play of the second layer such that portions of the thermoplastic and absorbent plies of the second layer form a border completely surrounding the first layer. Preferably, the thermoplastic material ply of the first layer includes passages therethrough and means for lowering the surface tension of a liquid.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: June 20, 2006
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventors: John S. Trent, Bryan L. Ackerman, Virginia D. Karul, William E. LeBoeuf
  • Patent number: 7056569
    Abstract: A cutting sheet for cutting and preparation of food items thereon comprises a first cut-resistant layer having a width and including a first absorbent ply and a first thermoplastic material ply. The thermoplastic material ply of the first layer includes a plurality of apertures disposed in parallel rows. The cutting sheet also includes a second layer having a second absorbent ply and a second thermoplastic material ply, wherein the second absorbent ply is disposed below and secured to the first absorbent ply. A plurality of adhesive portions are disposed in parallel rows to secure the first layer to the second layer between the first and second absorbent plies. The rows of apertures in the thermoplastic material ply of the first layer and the rows of adhesive portions between the first and second absorbent plies are parallel to one another such that the rows alternate.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: June 6, 2006
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventors: William D. Price, Bryan L. Ackerman, William E. LeBoeuf, Virginia D. Karul
  • Patent number: 7049251
    Abstract: This invention provides facing materials for cementitious boards such as those including Portland cement or gypsum cores. The preferred facing material includes, in a first embodiment, a facing layer having an areal weight of about 300 grams/M2, and an air permeability rating of no greater than about 300 CFM/ft2 (FG 436-910 test method). The facing layer reduces the penetration of a slurry of cementitious material during the manufacture of a cementitious board, while permitting the water vapor from the slurry to pass therethrough. The facing materials of this invention can be designed to substantially eliminate the fouling of rolls used in continuous processing of such boards without the use, or with greatly reduced use, of costly viscosity control agents in the slurry.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: May 23, 2006
    Assignee: Saint-Gobain Technical Fabrics Canada Ltd
    Inventor: John Frederick Porter
  • Patent number: 7048987
    Abstract: A disposable cutting sheet for cutting and preparation of food items thereon includes a first cut-resistant layer having a first surface area and including an absorbent ply and a thermoplastic material ply, wherein the thermoplastic material ply includes a plurality of apertures therein. The cutting sheet further includes a second layer having a second surface area and including an absorbent ply and a thermoplastic material ply. The absorbent ply of the first layer is disposed on and secured to the absorbent ply of the second layer such that portions of the thermoplastic and absorbent plies of the second layer extend beyond a surface area of the first layer to form a border completely surrounding the first layer. The thermoplastic material ply of the second layer is tinted a certain color for indicating absorption of the absorbent ply of the second layer.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: May 23, 2006
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventors: William D. Price, Bryan L. Ackerman, William E. LeBoeuf, Virginia D. Karul
  • Patent number: 7043770
    Abstract: A puncture and cut resistant surgical glove is provided for protection against injury from sharp surgical instruments and needles. The puncture and cut resistant surgical glove includes overlaid arrays of adjacent substantially spherical macrospheres. Each macrosphere has capture devices for capturing the point of a sharp instrument. An elastomer encapsulates the overlaid arrays of adjacent macrospheres. Each macrosphere is either porous or formed of smaller microspheres that are aggregated together to provide capture devices. A polymer is coated over the aggregated microspheres to give each macrosphere a smooth surface. The polymer and microspheres provide a capture function for capturing the points of sharp instruments. The puncture and cut resistant surgical glove can be fabricated using low cost manufacturing methods.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: May 16, 2006
    Inventor: Frank W. Cunningham
  • Patent number: 7036286
    Abstract: The present invention is an exterior window covering or exterior shutter that is comprised of layers of materials to form a sandwich. The sandwich material has a layer of polycarbonate material. An embodiment of the sandwich material is comprised completely of synthetic materials that are resistant to the adverse effects of sunlight, humidity, rain, heat and wind. The polycarbonate material yields an exterior shutter that retards flying objects and withstands substantial stresses from wind loads.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: May 2, 2006
    Inventors: Grover M. Blackwell, Harry H. Rembert, Jr.
  • Patent number: 7026034
    Abstract: A disposable cutting sheet for cutting and preparation of food items thereon includes a first section having a plurality of apertures therethrough and a cut resistant surface, a second liquid impermeable section disposed adjacent the first section, and a fold line disposed between the first section and the second section, wherein folding along the fold line forms the cutting sheet. The cutting sheet further includes an absorbent material, wherein the first and second sections are folded along the fold line and moved relative to one another to form a pocket therebetween such that the absorbent material is disposed in the pocket between the first and second sections. One of a surface of the first section that faces the absorbent material in a folded position and a surface of the second section that faces the absorbent material in a folded position is roughened or textured in order to prevent slippage of the absorbent material within the sheet when folded.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: April 11, 2006
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventors: William E. LeBoeuf, William D. Price, Virginia D. Karul
  • Patent number: 7026045
    Abstract: The invention relates to the area of armor and in particular to multilayer armor having a composite layer containing a first material made of a metal or an alloy and a second material where the second material is porous and in that the metal or metal alloy is infiltrated into some or all of the pores of the second material and characterized in that a cage made of plates having openings contains the first and second materials and in that the cage is itself coated, at least partly, with the infiltration metal or alloy, the melting point of the cage material being higher than that of the infiltration metal or alloy.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: April 11, 2006
    Assignees: ARC Leichtmetallkompetenzzentrum Ranshofen GmbH, Etat Francais Represente Par le Delegue General pour l'armement
    Inventors: Gottfried Rettenbacher, Josef Reiter, Franz Feuchtenschlager, Peter Schulz, Pierre-Francois Louvigne
  • Patent number: 7022395
    Abstract: A disposable cutting sheet for cutting and preparation of food items thereon includes a first cut-resistant layer having a first surface area and an absorbent ply and a thermoplastic material ply, wherein the first layer includes a plurality of non-circular apertures therein. The cutting sheet further includes a second layer having a second surface area and including an absorbent ply and a thermoplastic material ply, wherein the absorbent ply of the first layer is disposed on and secured to the second layer such that portions of the thermoplastic and absorbent plies of the second layer extend beyond the surface area of the first layer to form a border completely surrounding the first layer.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: April 4, 2006
    Assignee: S.C. Johnson Home Storage, Inc.
    Inventors: Bryan L. Ackerman, William E. LeBoeuf, Virginia D. Karul