Composite Patents (Class 109/80)
  • Patent number: 6474213
    Abstract: A reactive armor structure having an outer layer and a reactive element adjacent to and integral with the outer layer is provided. The reactive element provides an amount of support to the outer layer effective to restrain movement of the outer layer and to delay fracture of the outer layer when the outer layer is impacted by a projectile.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: November 5, 2002
    Assignee: Southwest Research Institute
    Inventors: James D. Walker, Dennis L. Orphal
  • Publication number: 20020062768
    Abstract: A soft fire safe includes a storage compartment, insulating layer, outside cover, and insulating plug. The storage compartment preferably includes a storage tube, end plate, and removable end cap. The end plate is attached to one end of the storage tube. The removable end cap is removably attached to the other end of the storage tube. The insulating layer includes a lengthwise insulating layer a stationary end insulating layer, and a movable end insulating layer. The lengthwise insulating layer is wrapped around the storage tube. The insulating layer and storage tube are encapsulated in the outside cover. An opening is formed through one end of the outside cover, adjacent the removable end cap. The insulating plug is sized to be received by the opening. The movable end insulating layer is contained within the insulating plug. An item to be stored is inserted into the storage tube.
    Type: Application
    Filed: November 28, 2001
    Publication date: May 30, 2002
    Inventors: Steven R. Schilz, Michael P. Martello
  • Patent number: 6119411
    Abstract: An enclosure that is fire-resistive for a predetermined period of time including a floor having a structural forging which is covered with a glass wool felt. A platform of wooden plates is affixed to the glass wool felt. Lateral expansion joints are positioned at ends of the wooden plates. A wooden skirting board is positioned over the expansion joints and resides against walls of the enclosure. The walls are formed by plywood boards, incombustible boards, and a wooden board formed by planks. A metallic square bar is affixed to the floor and resides at the bottom of the walls. A ceiling is self-supported at the top of the walls. The door of the enclosure includes a frame having a plurality of wooden parts having a steel plate extending across at least one face thereof. This steel plate is covered with an incombustible board.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: September 19, 2000
    Inventors: Maria Desamparados Mateu Gil, Beatriz Mateu Gil, Lorena Mateu Gil
  • Patent number: 5767435
    Abstract: The invention relates to a splinterproof lining for a structure, such as an armoured vehicle. The splinterproof lining comprises several layers. The splinterproof lining includes an adhesive layer of solid organic material which is placed against a wall of the structure. The adhesive layer is between approximately 2 and 30 mm thick. An adjacent layer of a composite material with an organic matrix and a mineral or an organic reinforcement is placed in the immediate vicinity of the adhesive layer. The adjacent layer is approximately 5-30 mm thick. The splinterproof lining may also include a dispersion zone approximately 5 to 10 mm thick and filled with a polyurethane foam, with the dispersion zone placed between the adhesive layer and the adjacent layer. Additionally, an absorbing layer of double-drawn polyethylene approximately 5 mm thick, may be placed against the adjacent layer.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: June 16, 1998
    Assignee: Giat Industries
    Inventor: Jean-Jacques Reymann
  • Patent number: 5747159
    Abstract: A transparent panel having unidirectional bullet-resisting characteristics, comprises an outer transparent panel (2) of an acrylic resin; an inner transparent sheet (3) of a polycarbonate resin; and a transparent adhesive (16) bonding the two sheets (2, 3) together. Also described are a method of making such a panel, and presses (18, 50) useful in making such a panel.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: May 5, 1998
    Assignee: M.R.M. International, Inc.
    Inventor: Joseph Labock
  • Patent number: 5740635
    Abstract: An enclosure that is fire-resistive for a predetermined period of time including a floor having a structural forging which is covered with a glass wool felt. A platform of wooden plates is affixed to the glass wool felt. Lateral expansion joints are positioned at ends of the wooden plates. A wooden skirting board is positioned over the expansion joints and resides against walls of the enclosure. The walls are formed by plywood boards, incombustible boards, and a wooden board formed by planks. A metallic square bar is affixed to the floor and resides at the bottom of the walls. A ceiling is self-supported at the top of the walls.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: April 21, 1998
    Inventors: Maria Desamparados Mateu Gil, Beatriz Mateu Gil, Lorena Mateu Gil
  • Patent number: 5637824
    Abstract: An add-on reactive armor element effective against normal and skew attack. The element is a multilayer composite body in which each layer tightly bears against each contiguous layer, which multilayer composite body includes an outer cover, at least one explosive layer, at least one intermediary inert body and a base plate. The intermediary layer or layers may be, for example, of aluminium, glass or ceramics.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: June 10, 1997
    Assignee: State of Israel, Ministry of Defence, The, Rafael Armament Development Authority
    Inventor: Moshe Benyami
  • Patent number: 5490468
    Abstract: A safe, vault or container 10 has a laminate wall that is resistant to the cutting effects of a high-temperature torch. The wall of the safe, vault or container 10 comprises a hardened steel outer panel 21 and a hardened steel inner panel 22. A refractory abrasive layer 23, as of Carborundum, is disposed adjacent the outer panel 21 to break any drill that might penetrate through the outer panel 21. A thermally conductive layer 24 is disposed adjacent the abrasive layer 23 to conduct heat rapidly away from any localized hot spots that might develop within the abrasive layer 23 when heat from a high-temperature torch is applied to a region of the outer panel 21. A thermally insulating layer 25 is disposed between the thermally conductive layer 24 and the inner panel 22 to inhibit heat transfer from the thermally conductive layer 24 to the inner panel 22. The thermally insulating layer 25 comprises a porous ceramic material consisting of vitreously fused ceramic fibers.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: February 13, 1996
    Assignee: Lockheed Missiles & Space Co., Inc.
    Inventor: Donald Polensky
  • Patent number: 5483905
    Abstract: A security cabinet comprises a body of a high-strength material and at least one burglary resistant lockable door. To make the inventive cabinet sufficiently burglary resistant for storing e.g. firearms, it is designed with one main element and at least one end element attached to one end of the main element, at least one display window with a glass panel of shock-proof, burglary resistant glass sheet material being stationarily mounted in the body of the main element, whereas the burglary resistant, lockable door of the cabinet is attached to the body of the end element and forms at least part of the corresponding end wall of the cabinet. The display window is mounted by being clamped between a circumferential frame made of a high-strength material and arranged on the outside of the body, and a circumferential, torsionally rigid frame section on the inside of the body. The frame engages the body outside, and the frame section is attached to the body inside to form a mounting groove for the glass panel.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: January 16, 1996
    Assignee: Visual Security Visec Aktiebolag
    Inventor: Jerzy K. Johansson
  • Patent number: 5469796
    Abstract: A lightweight, multilayered panel for use in a modular vault or safe structure has multiple layers of cross-grained wood boards secured together by a grid of hardened masonry nails. The nails are driven into the panel layers from both major face surfaces of the panel and are angled from the perpendicular of the major face surfaces of the panel to increase the probability of a penetrating instrument striking a nail during a penetration attempt. The panel is covered in a layer of sheet metal, and a layer of Kevlar or some other ballistic resistant material is placed on one or more major face surfaces. Rabbet edges on the panel allow an assembly with reinforced seams, and two single panels may be secured together to form a double reinforced vault panel.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: November 28, 1995
    Assignee: Mosler, Inc.
    Inventor: Donald E. Koenig
  • Patent number: 5435256
    Abstract: A box for containing valuables and particularly paper valuables and such which are susceptible to heat damage. It is made in the shape of a food item and kept in the refrigerator. The sidewalls, as well as optionally the bottom or top of the box, are preferably insulated with heat sink material with the preferred embodiment incorporating a water jacket filled with standing water to absorb heat and buy time in a fire as it vaporizes.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: July 25, 1995
    Inventor: Oswald C. Svehaug
  • Patent number: 5377514
    Abstract: A fire-resistant safe is made with internal and external shells that are filled with insulation material. Hollow reinforcements interconnecting the two shells are formed as cone-shaped recesses in the internal shell having truncated bottom portions attached to the external shell. The insulation is made of a water-bearing material and the recesses are made of a resin material that melts at a temperature in excess of the boiling point of water. Funnels are formed in the external shell for adding the insulation material in a liquid state. An escutcheon for covering the funnels is anchored to the insulation material by stakes that are embedded in the insulation material before the material hardens into place.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: January 3, 1995
    Assignee: John D. Brush & Co., Inc.
    Inventors: Richard C. Robbins, Andrew L. Oliveri, Mary P. DiGiambattista
  • Patent number: 5329864
    Abstract: A break-in obstructing, or burglarproof door or wall, for which old motor vehicle tires are used as filling units instead of steel structures and sheeting. The treads or strips separated from the tires form mat-like, layered, and/or stacked filling units for burglarproof doors or walls and are connected with each other and to the frame by special fastening devices. This application considerably reduces the weight of such a door, and allows for burglarproof and break-in obstructing doors and walls at a much lower production cost, due to using recycling material.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: July 19, 1994
    Inventor: Erich Doring
  • Patent number: 5295447
    Abstract: A fire-resistant safe is made with internal and external shells that are filled with insulation material. Hollow reinforcements interconnecting the two shells are formed as cone-shaped recesses in the internal shell having truncated bottom portions attached to the external shell. The insulation is made of a water-bearing material and the recesses are made of a resin material that melts at a temperature in excess of the boiling point of water. Funnels are formed in the external shell for adding the insulation material in a liquid state. An escutcheon for covering the funnels is anchored to the insulation material by stakes that are embedded in the insulation material before the material hardens into place.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: March 22, 1994
    Assignee: John D. Brush & Co., Inc.
    Inventors: Richard C. Robbins, Andrew L. Oliveri, Mary P. DiGiambattista
  • Patent number: 5257583
    Abstract: A lightweight, multilayered panel for use in a modular vault or safe structure has multiple layers of cross-grained wood boards secured together by a grid of hardened masonry nails. The nails are driven into the panel layers from both major face surfaces of the panel and are angled from the perpendicular of the major face surfaces of the panel to increase the probability of a penetrating instrument striking a nail during a penetration attempt. The panel is covered in a layer of sheet metal, and a layer of Kevlar or some other ballistic resistant material is placed on one or more major face surfaces. Rabbet edges on the panel allow an assembly with reinforced seams, and two single panels may be secured together to form a double reinforced vault panel.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: November 2, 1993
    Assignee: Mosler, Inc.
    Inventor: Donald E. Koenig
  • Patent number: 5229204
    Abstract: A transparent panel having unidirectional bullet-resisting characteristics, comprises an outer transparent panel of an acrylic resin; an inner transparent sheet of a polycarbonate resin; and a transparent adhesive bonding the two sheets together. Also described are a method of making such a panel, and presses useful in making such a panel.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: July 20, 1993
    Assignee: ArmorVision Plastics & Glass
    Inventor: Joseph Labock
  • Patent number: 5196252
    Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises a flexible substrate layer having a plurality of planar non-metallic bodies mechanically affixed to a surface thereof.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: March 23, 1993
    Assignee: Allied-Signal
    Inventor: Gary A. Harpell
  • Patent number: 5188040
    Abstract: A break-in obstructing, or burglarproof door or wall, for which old motor vehicle tires are used as filling units instead of steel structures and sheeting. The treads or strips separated from the tires form mat-like, layered, and/or stacked filling units for burglarproof doors or walls and are connected with each other and to the frame by special fastening devices. This application considerably reduces the weight of such a door, and allows for burglarproof and break-in obstructing doors and walls at a much lower production cost, due to using recycling material.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: February 23, 1993
    Inventor: Erich Doring
  • Patent number: 5152231
    Abstract: A fire-resistant safe has a main body and a closure, both of which are formed from integral resin shells filled with insulation materials. When exposed to fire, a portion of the resin material burns away leaving gaps between the insulation materials of the main body and closure. However, formation of convection air currents in vertical sections of the gaps is resisted by reducing spacings between insulation materials of the main body and closure. The amount of heat energy carried by the convection air currents is similarly reduced, thereby avoiding significant concentrations of heat that can promote burning through the gaps.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: October 6, 1992
    Assignee: John D. Brush & Co., Inc.
    Inventors: Mark E. Preston, Eugene S. Stephens
  • Patent number: 5114772
    Abstract: Sintered ceramic elements are associated to at least one composite material layer having a fibrous reinforcement arrangement and a ceramic matrix located behind the sintered ceramic elements.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: May 19, 1992
    Assignee: Societe Europeenne De Propulsion
    Inventors: Michel Vives, Pierre Taveau, Jacques Etienne, Yves Remillieux, Lucien Charbonnel
  • Patent number: 5060582
    Abstract: A bullet and blast resistance door leaf is comprised of inner and outer sheets connected by a profile section forming an end face of said leaf. The profile section includes an outer step and an inner step, the outer step extending laterally outwardly beyond the inner step. Outer and inner plates are connected to the outer and inner steps respectively, dividing the interior of the leaf into inner, outer and central chambers. A lock mechanism is mounted in the central chamber and projects through the profile, the lock mechanism being shielded by the outer plate. The inner and outer chambers may include insulation, and the outer chamber may include a sensor for activating an alarm.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: October 29, 1991
    Assignee: Salzer Sicherheitstechnik GmbH
    Inventor: Heinrich Salzer
  • Patent number: 4992310
    Abstract: A fire pouch is provided for protecting flammable documents from both fire and water damage. The fire pouch includes a thin pliable water-type exterior container which houses a gelled water material to absorb thermal energy during the fire. The fire pouch further comprises a hydrated intumescent material layer which is secured to the exterior container, and both absorbs thermal energy and intumesce during a fire to produce a foam layer which provides substantially increased fire protection. The gelled water layer and the hydrated intumescent material layer form a relatively thin pliable rectangular-shaped blanket having a seam which divides the blanket into a base portion and a cover portion. The blanket unfolds by bending substantially along the seams to receive the flammable documents, and folds into its protective position such that the documents are sandwiched between the based portion and the covered portion to protect the docments during a fire.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: February 12, 1991
    Assignee: G. M. Gelb
    Inventors: Gabriel M. Gelb, William A. Mallow, Scott Stropkay
  • Patent number: 4918900
    Abstract: A light-weight wall panel for a protective enclosure includes a shell of sheet metal which encases a filler structure of a combination of penetration resisting or hard wood and metal members. The filler structure includes first and second wall structures which differ from one another by the orientation of hard wood and sheets of expanded metal which are interleaved between adjacent ones of the boards. In the first wall structure adajcent one of the major surfaces of the wall panel, the hard wood boards and interleaved metal sheets have their major surfaces oriented perpendicular to the major surfaces of the wall panel. The second wall structure adjacent the other of the major surfaces of the wall panel has layers of hard wood boards and sheets of expanded sheet metal which extend with their major surfaces parallel to the major surfaces of the wall panel. The two wall structures are fastened to each other and hence into a single structure.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: April 24, 1990
    Assignee: Inter Innovation LeFebure Manufacturing Corp.
    Inventors: Kevin A. Fee, Mark S. Hollinrake
  • Patent number: 4879165
    Abstract: Lightweight armor or high impact structures comprising lamina-like structures comprising zones of decreasing Young's modulus and increasing elongation characteristics. The structure contains at least one ionomer composite having aramid or linearly crystalline polyethylene fibers arranged to dissipate impact forces laterally.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: November 7, 1989
    Inventor: W. Novis Smith
  • Patent number: 4873810
    Abstract: The invention relates to the construction of a self-supporting body of cellular structure, great rigidity, and capable of withstanding stresses exerting in all directions, either separately or together, of withstanding impacts, pressure, shock waves, acoustical and thermal phenomena, and using free volumes as assemblies having different characteristics or as shock absorbing means. The invention also provides the possibility of varying the weight of said body by being filled with various fluids which may be static or flowing, which may be at various different pressures, and which may contain specialized agents on a permanent basis or which may be put into action under certain constraints of pressure, temperature, etc.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: October 17, 1989
    Inventor: Jean Lecaroz
  • Patent number: 4859541
    Abstract: A safe having a wall comprising spaced steel plates, a sheathing layer between the plates consisting of hard non-metallic grains of e.g., boron carbide, silicon carbide, boron nitride, diamonds, ceramic oxides and hard metallic grains of e.g., cast iron, metal carbides, nitrides, borides, and silicides, said grains being bound together and to said plates by a hard solder mass having a copper or nickel base. The sheathing layer contains 30-70% by volume of said non-metallic grains (having a grain size of 5 to 20 mm) and metallic grains (having a grain size of 1 to 6 mm) and from 70% to 30% of said hard solder. The ratio of said non-metallic to said metallic grains is 2-4 parts to 1 part by volume. A method for making the sheathing layer is also disclosed.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: August 22, 1989
    Assignees: Metallgesellschaft AG, Bode Panzer Aktiengesellschaft
    Inventors: Heinz Maxeiner, Gerhard Kruske, Hartwig Reimann
  • Patent number: 4842923
    Abstract: The present invention provides a fiberglass composite which possesses outstanding armor properties. This ballistic resistant composite material employs a high strength magnesia aluminosilicate glass fabric and a prescribed phenol formaldehyde condensation product as the matrix resin. The composite is produced from a prepreg by molding under controlled conditions and the prepreg material is formed with a controlled heating cycle.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: June 27, 1989
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David R. Hartman
  • Patent number: 4824624
    Abstract: A method of providing fastener holes in extremely hard ceramic armor comprises the steps of:(a) providing a billet of precompacted ceramic powder material;(b) drilling the desired holes in the billet;(c) preparing a plug of non-sintering material that is chemically compatible with and has compaction characteristics similar to the ceramic powder material;(d) pressing the plugs into the billet holes;(e) hot pressing the billet and plugs at conventional temperature and pressure for manufacture of a ceramic armor structure, and;(f) removing plugs by conventional tooling or sandblasting.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: April 25, 1989
    Assignee: Ceradyne, Inc.
    Inventors: Richard J. Palicka, John A. Negrych
  • Patent number: 4822657
    Abstract: A bullet resistant panel defined by an assembly including plural layers of impact resistant fabric and a layer of insulating foam, the assembly being secured within a peripheral frame and laminated between intermediate substrates of cellulosic material and exterior layers of metal. The panel may be used in constructing protective walls or barriers subjected to possible impact by bullets or other high impact force projectiles.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: April 18, 1989
    Assignee: Alliance Wall Corporation
    Inventor: Terry W. Simpson
  • Patent number: 4735155
    Abstract: A fire-resistant enclosure comprises a casing, a hollow internal compartment defined by said casing, a door opening defined in said casing and providing access to the internal compartment and a door fitted into and closing said opening. Both the door and at least that part of the casing defining the door opening are constructed primarily from rigid fire-resistant intumescent material comprising a resin incorporating a blowing agent such that when subjected to heat the material of the door and the material of the casing at the door opening swell towards each other and provide a heat and water resistant seal between said door and said door opening.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: April 5, 1988
    Assignee: The Johnson Company Limited
    Inventor: Hugh W. Johnson
  • Patent number: 4732803
    Abstract: Light weight armor comprising lamina-like structures arranged with zones of decreasing Young's modulus and increasing elongation characteristics. The structure contains at least one composite having fibers arranged to dissipate impact forces laterally.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: March 22, 1988
    Inventor: W. Novis Smith, Jr.
  • Patent number: 4721227
    Abstract: A fire-resistant container for protecting magnetic media such as floppy discs comprises a base and a cover. The base is in the form of an outer casing and an inner container separated by thermal insulation material which is maintained under compressive stress so as to retain the inner container in position within the outer casing and to permit the insulation material to expand when the outer casing expands as a result of exposure to high temperature. The inner container may have a hollow wall which is filled with wax. The cover may comprise a dished outer cover, an inner cover and thermal insulation material which is maintained under compressive stress.
    Type: Grant
    Filed: January 3, 1986
    Date of Patent: January 26, 1988
    Assignee: Micropore International Limited
    Inventors: John T. Hughes, Michael Hardiman
  • Patent number: 4704943
    Abstract: Structures both for resisting impacts as well as delivering impacts are described. Generally, the impact resisting structures are formed with means for preventing the reinforcing intersection of a sonic wave train with its own reflection within the structure, such that at least one shock wave fracture mode is eliminated. More specifically, the structures are formed with means for suppressing the specular reflection of high frequency energy at one or more surfaces of the structure. This means may comprise irregularities formed in a surface to roughen the surface in a predetermined relationship with the wavelength of the sonic energy. The impact delivery structures are adapted to rapidly deliver kinetic energy after an initial contact with an object. These structures may comprise a projectiles having a jacket and a spline supported therein for providing a high velocity channel through which a sonic energy wave train may propagate.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: November 10, 1987
    Inventor: John A. McDougal
  • Patent number: 4662289
    Abstract: To protect a construction against terrorist acts, in particular explosive attacks, a protective wall requiring considerable time for destruction is placed in front of it. This protective wall consists of a row of pillars from which are suspended a support net (4) and shielding elements (5) in the form of a box structure constituting a closed suspended wall (H1), attached by hooks (16) to the net. Each shielding element (5) comprises an armoured front plate (12) and a filling in the form of an inflammable material (13) in which igniting devices (14) are embedded, being triggered under the effect of the firing of the explosives or other means of attack, thus setting fire to the inflammable material (13). The flames and fumes thus produced prevent the terrorists from proceeding further.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: May 5, 1987
    Assignee: Bauer Kassenfabrik AG
    Inventor: Josef Harder
  • Patent number: 4645613
    Abstract: A heat storage composition for use as a medium to protect objects such as floppy disks from damage by heat is formed of a major portion by weight of the septahydrate of sodium carbonate and a lesser proportion by weight of the monohydrate of sodium carbonate, with the compositions being substantially free of cementitious materials and thixotropic agents.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: February 24, 1987
    Assignee: John D. Brush & Co., Inc.
    Inventors: Nathan A. Harvey, Roland M. Avery, Jr.
  • Patent number: 4594290
    Abstract: An impact resistant transparent laminate that includes as one ply a special urethane-modified acrylic sheet containing a vinyl-functional polyurethane elastomer that is a polymerization product of an aliphatic diisocyanate, one or more hydroxyl-functional polyether or polyester prepolymers, and a hydroxyl or amine-functional vinyl monomer. In a three-ply embodiment of the invention, the urethane modified acrylic sheet serves as the back ply, a hard plastic sheet formed of a material like cast acrylic serves as the front ply, and a thin sheet having high elongation such as polyurethane serves as an intermediate ply. In a five-ply embodiment of the invention, the laminate further includes a second thin sheet having high elongation disposed immediately behind the urethane-modified acrylic ply and a ductile plastic sheet formed of a material like polycarbonate to serve as its back ply.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: June 10, 1986
    Assignee: Swedlow, Inc.
    Inventors: William F. Fischer, Donald P. LeMasters, William C. Harbison
  • Patent number: 4541545
    Abstract: A portable fire resistant case 10 is made with a molded, double-walled resin body 11 and cover 12 hinged and locked together and filled with insulation in the spaces between the double walls. Spring latches 30 mounted on body 11 engage interlock surfaces 33 on cover 12 to hold cover 12 to body 11 independently of the hinge and are assisted in this by a lock element 27 engaging and holding projections on the inside of body 11. Body 11 and cover 12 are formed with molded filling projections 19 and 20 forming passageways into cavities 11c and 12c that are filled with insulation through filling projections 19 and 20. Projections 19 and 20 and overfilled insulation material that they contain are cut away after the insulation has set to leave insulation stubs 23 and 24 over which escutcheons 25 and 26 are mounted on the lock side of case 10.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: September 17, 1985
    Assignee: John D. Brush & Co., Inc.
    Inventors: Patrick J. Beattie, David O. Chase
  • Patent number: 4442780
    Abstract: A clipboard and shield apparatus having a board with a top flat surface to accommodate writing paper and a bottom with ribs forming pockets which serve as barriers to prevent a sharp object from moving off the apparatus. The board has high impact strength provided by laminated sheet members bonded together and surrounding a high strength core comprising a woven mat of high density polyethylene. A hand grip is attached to one side of the board. A fluid dispenser or flashlight is carried by the hand grip.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: April 17, 1984
    Assignee: Child Laboratories Inc.
    Inventor: Francis W. Child
  • Patent number: 4408545
    Abstract: A "do it yourself" burglar-resistent safe is provided at extremely low cost. The present apparatus and method make it possible and practical for almost any person, even a person having a low degree of manual skill and even a low intelligence, to construct his or her own safe with precision.In a preferred embodiment, a plastic liner is precision saw-cut or molded at the factory to provide various slots or grooves adapted to receive the inner edge portions of steel bars having predetermined sizes. The customer purchases the liner and bars in unassembled condition, together with a bottom, a firecap mold, and a strong steel door with associated lock. At any desired region of his home, the customer provides form means sufficiently large to receive the liner and having as much capacity as the customer wishes.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: October 11, 1983
    Inventor: Robert J. Lichter
  • Patent number: 4389947
    Abstract: Manufactures, apparatus and processes for shielding the hazards of exploss, pyrotechnics and propellants during manufacture, demolition, demilitarization storage, transportation and use.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: June 28, 1983
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul V. King, Albert F. Becher, Wilmer P. Henderson
  • Patent number: 4326468
    Abstract: Manufactures, apparatus and process for shielding the hazards of explosiv pyrotechnics and propellants during manufacture, demolition, demilitarization storage, transportation and use.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: April 27, 1982
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul V. King, Albert F. Becher, Wilmer P. Henderson
  • Patent number: 4292882
    Abstract: Bullet proof armor comprising a laminated pad with front and rear surfaces and composed of a plurality of loosely related fabric sheets woven of fibres having high tensile strength, said fibres of the fabric adopted to establish gripping and holding engagement on the surface of bullets directed toward and impinging of said front surface and advancing into the pad, and metal abrading means comprising metal abrading particulate material at said front surface and adapted to abrade and condition the surface of bullets whereby the fibres of the fabric can better grip and hold onto the bullets.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: October 6, 1981
    Inventor: Carol W. Clausen
  • Patent number: 4272137
    Abstract: In a heat resistant cabinet, a gypsum filling is provided in the interspace between the outer casing and the inner surface. In the upper part of the cabinet, at least one hollow space is present in the gypsum filling. This hollow space extends practically over the whole width and the whole depth of the cabinet. The ceiling is therefore provided by two relatively thin plates of gypsum spaced from each other and each containing a wire mesh for reinforcement, providing a good heat protection for the contents of the uppermost drawer, without adding any substantial vulnerability to impairment of heat protection by falling material or by falling of the cabinet.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: June 9, 1981
    Assignee: Sistemco N.V.
    Inventors: Friedrich Rothhaas, Gunther Pichler
  • Patent number: 4186648
    Abstract: An armor wall structure comprising a plurality of woven fabric laminates of polyester resin fibres arranged and supported in and by a supportive resinous matrix with a filler of particulate metal abrading material, said matrix, filler of particulate metal abrading material, and woven fabric laminates cooperating with each other to establish a structurally stable unitary armor wall structure.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: February 5, 1980
    Inventors: Carol W. Clausen, Eugene J. Davis
  • Patent number: 4176440
    Abstract: A "do it yourself" burglar-resident safe is provided at extremely low cost. The present apparatus and method make it possible and practical for almost any person, even a person having a low degree of manual skill and even a low intelligence, to construct his or her own safe with precision.In a preferred embodiment, a plastic liner is precision saw-cut or molded at the factory to provide various slots or grooves adapted to receive the inner edge portions of steel bars having predetermined sizes. The customer purchases the liner and bars in unassembled condition, together with a bottom, a firecap mold, and a strong steel door with associated lock. At any desired region of his home, the customer provides form means sufficiently large to receive the liner and having as much capacity as the customer wishes.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: December 4, 1979
    Inventor: Robert J. Lichter
  • Patent number: 4174711
    Abstract: In the walls of a fire resistant enclosure such as a cabinet for storing heat sensitive, valuable goods or a room or shelter in a building in which persons can find refuge in the event of a fire, hollow bodies of large area contain substances which melt at a temperature which is still acceptable to the contents of the cabinet or physiologically acceptable to the persons in the room or shelter. The invention also provides various appliances for alleviating conditions in a said room or shelter, for providing a breathing air supply at an acceptable temperature for persons trapped therein and for facilitating the evacuation of persons therefrom, all such appliances involving the use of substances adapted to absorb heat from their environment by utilizing the latent heat of fusion of the substances.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: November 20, 1979
    Inventors: Oliver Laing, Nikolaus Laing, Ingeborg Laing
  • Patent number: 4049864
    Abstract: The disclosure relates to a barrier for resisting penetration by such as hand tools and oxy-acetylene cutting torches. The barrier comprises a layer of firebrick, which is preferably epoxy impregnated sandwiched between inner and outer layers of steel. Between the firebrick and steel are layers of resilient rubber-like filler.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: September 20, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: William R. Hoover, Keith E. Mead, Henry K. Street
  • Patent number: 3977294
    Abstract: A composite laminate material is described comprising a plurality of layers of graphite sheet material coated on at least one side thereof with a ceramic material having a density greater than about 50% of its theoretical density, preferably, up to about 95% or greater theoretical density. The ceramic material constitutes at least 90% of the thickness of the composite laminate. The composite laminate is formed by applying to one or both sides of graphite sheet material a ceramic layer compacted to at least 50% theoretical density. A plurality of layers of the ceramic coated graphite sheets are then stacked and pressure molded by conventional techniques with the various layers being adhered together using a suitable adhesive. The resulting laminate is light weight and thin but has sufficient strength to be used as armor material to protect against projectiles. The laminate material is easily shaped and cut and because of its light weight is especially useful for making body armor.
    Type: Grant
    Filed: September 7, 1971
    Date of Patent: August 31, 1976
    Assignee: Fiber Materials, Inc.
    Inventor: Paul F. Jahn
  • Patent number: 3930452
    Abstract: An impact resistant panel composed of a group of at least three sheets of vitreous material bonded together via intervening layers of plastic material. According to one form of construction, the group includes a set of consecutive vitreous sheets of at least three different thicknesses which are arranged in order of thickness, and at least the first sheet, taken in the direction from the highest sheet thickness end of the set, is tempered. According to a second form of construction, the group includes a set of consecutive sheets of at least two different thicknesses arranged in order of thickness and at least two of the plastic layers are of different thicknesses and are arranged so that one of the layers having the smallest thickness is nearer the first sheet, taken in the direction from the thickest sheet, than is any other layer.
    Type: Grant
    Filed: September 19, 1973
    Date of Patent: January 6, 1976
    Assignee: Glaverbel-Mecaniver S.A.
    Inventors: Robert Van Laethem, Pol Baudin, Marcel De Boel