Intersecting Corrugating Or Dimples Not In A Single Line (e.g., Waffle Form, Etc.) Patents (Class 428/604)
  • Patent number: 5330728
    Abstract: A catalytic converter for use in the exhaust system of an internal combustion engine having a catalyst coated substrate with an inlet face oriented at an angle less than ninety degrees to the flow of exhaust gas entering the converter and fluid flow channels extending through the substrate from the inlet face to an outlet face and oriented at an angle less than ninety degrees to the inlet face. The mounting configuration within the canister allows for an increase in the frontal or inlet area without a corresponding increase in the converter cross section while the angled flow channels minimize the effect of the angled mounting of the substrate relative to the exhaust flow on the backpressure imposed on the exhaust system by the converter.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: July 19, 1994
    Assignee: General Motors Corporation
    Inventor: Michael R. Foster
  • Patent number: 5256464
    Abstract: A substrate for electronic components has a layer of material covering at least a portion of the substrate. Recesses are formed in a layer of material and located in a pattern relative to each other to form a predetermined temperature distribution across the layer of material. The layer of material can be formed as a resistive film for a heating resistor element. The shape, size and pattern of the recesses are selected to balance the thermal stress across the surface of the layer of material.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: October 26, 1993
    Assignee: Robert Bosch GmbH
    Inventor: Hans Hecht
  • Patent number: 5244745
    Abstract: The invention relates to a structural sheet formed with cup-shaped projections in which the sidewalls are formed by a sigmoidal line of revolution to provide for more uniform distribution of stress in the structural sheet. There is also provided a novel two-component structural panel which incorporates the advantages of such a structural element to eliminate depressions in the outer panel member which would present "read through" problems.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: September 14, 1993
    Assignee: Aluminum Company of America
    Inventors: Dinesh C. Seksaria, Glenn W. Jarvis
  • Patent number: 5051294
    Abstract: A substrate for a catalytic converter is formed of steel sheets embossed with corrugations in a chevron pattern such that the metal buckles at vertices of adjoining corrugations to form projections extending out of the plane of the sheet. The sheets are stacked with the projections registered to form weld points and capacitive discharge welding secures the sheets together. The substrate is formed in two halves which are clamped together and then secured by end rings.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: September 24, 1991
    Assignee: General Motors Corporation
    Inventors: Michael J. Lunkas, Matthew W. Spilker
  • Patent number: 5028474
    Abstract: A three-dimensional structure adapted for use for instance as a core in sandwich panel-type construction, and comprised of substantially continuous unbroken sheet material to which has been imparted an alternating sequence of ridges and valleys, creating spaced rows of adjacent inclined rectangular-shaped facets connected by intermediate rows of adjoining parallelogram-shaped facets. The core structure provides substantially gridlike bearing surfaces on two opposing parallel bearing planes thereof to which face sheets may be affixed, to form a sandwich panel.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: July 2, 1991
    Inventor: Ronald M. Czaplicki
  • Patent number: 4965138
    Abstract: Disclosed herein is a cast or molded structural panel having two plates or sheets integrally joined to an intermediate zone. The intermediate zone is formed either of a cross corrugated panel or a double tray structure between the plates. The cross corrugated panel may be regarded as having a first set of corrugations perpendicularly intersecting a second set of corrugations. The double tray structure may be described as two arrays of hollow pyramids whose bases are joined to one of the sheets. One array of pyramids fits in an interdigitally complementary fashion into the other array of pyramids, and the two trays are integrally joined at the areas of contract between pyramids. Filler material may occupy the cavities defined by the intermediate zone and the plates. In the case of an apertured intermediate zone, the fillter will form a continuous lattice-like structure interwoven with this zone.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: October 23, 1990
    Inventor: Rene Gonzalez
  • Patent number: 4876134
    Abstract: A process for producing a laminated panel core made of stainless steel includes the step of preparing a core of the laminated panel by subjecting stainless steel foils to repeated outward and inward foldings in a constant mode in one direction to make a plurality of multi-layered folded sheets of stainless steel. An adhesive is applied to a portion of the surfaces of the folded sheets and a desired number of the multi-layered sheets are laminated. The adhesive causes the sheets to adhere to one another in the areas of application of the adhesive. The laminate is sliced in a plane perpendicular to the plane generally defined by each of the multi-layered sheets into an appropriate small thickness and is extended and deformed in a plane parallel to the plane in which the laminate is sliced and in the direction of lamination of the sheets. A multi-layered sheet for use in a process for forming laminated panels and a stainless steel foil core for use in a laminated panel are also disclosed.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: October 24, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Yoshiro Saitoh, Takashi Tatsumi
  • Patent number: 4837053
    Abstract: Filaments are coated with MgO to create an effective diffusion barrier between the filament and the matrix in a metal matrix composite, thereby improving the strength and the service life of the composite.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: June 6, 1989
    Assignee: The Aerospace Corporation
    Inventors: Wei H. Kao, Howard A. Katzman, Eric M. Slater
  • Patent number: 4619870
    Abstract: A panel having an edge strip which nests with an edge strip of an adjacent panel to enable the panels to be fixed together by passing a pin through aligned holes formed in the edge strips.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: October 28, 1986
    Inventors: Norman J. Mitchell, Alexander G. Mitchell
  • Patent number: 4591534
    Abstract: An improved structural material for the wall of a rocket engine nozzle extension comprising a thin sheet-metal base 12 and a rib wall 16 comprising a grid of intersecting ribs 18 which form internal cavities 20. A surface of the base 12 is plated 14 with Cu and the rib wall 16 is bonded thereto so that each cavity 20 has an open end. The interior surfaces of the ribs 18, which form the cavities 20, are also plated with Cu.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: May 27, 1986
    Assignee: Rockwell International Corporation
    Inventors: William R. Wagner, Robert A. Feight
  • Patent number: 4380573
    Abstract: A corrugated sheet has a bend formed by one or more straight lines of impressions extending transversely across the corrugation valleys upwardly into the valleys and adjacent portions of the side walls between the valleys and the corrugation crests, and at the ends of the impressions the side walls have indents extending outwardly away from the impressions. The number of indents and impressions depends on the extent of the bend.
    Type: Grant
    Filed: January 30, 1980
    Date of Patent: April 19, 1983
    Assignee: Korstrask Mekaniska, G. Naslund
    Inventor: Gustav Naslund
  • Patent number: 4344591
    Abstract: Multiwall insulating sandwich panels are provided for thermal protection of hypervelocity vehicles and other enclosures. In one embodiment of the invention the multiwall panels are formed of alternate layers of dimpled and flat metal (titanium alloy) foil sheets and beaded scarfed edge seals to provide enclosure thermal protection up to 1000.degree. F. An additional embodiment employs an intermediate fibrous insulation for the sandwich panel to provide thermal protection up to 2000.degree. F. and a third embodiment employs a silicide coated columbium waffle as the outer panel skin and fibrous layered intermediate protection for thermal environment protection up to 2500.degree. F.The use of multiple panels of the present invention on an enclosure facilitate repair and refurbishment of the thermal protection system due to the simple support provided by the tab and clip attachment for the panels.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: August 17, 1982
    Assignee: The United States of America asrepresented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Liam R. Jackson
  • Patent number: 4343866
    Abstract: A method of deep embossing of sheet material, generally metal, is disclosed. A small scale relief pattern is first embossed across the entire sheet and thereafter a deep embossment of spaced-apart protuberances is imparted to the sheet. Both patterns in combination produce a sheet useful for reflective thermal insulation without the risk of significantly puncturing the sheet.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: August 10, 1982
    Assignee: Manville Service Corporation
    Inventors: Nathan Oser, Edmund J. Niedzinski
  • Patent number: 4301039
    Abstract: The catalyst support is a spiral formed by winding a single strip of metal upon itself. Indentations in the strip maintain a uniform spacing between the layers in the spiral. The indentations are displayed along the strip in at least two different patterns. Different patterns are wound onto successive layers in the spiral so that the indentations in successive layers cannot coincide and nest together.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: November 17, 1981
    Inventor: William B. Retallick
  • Patent number: 4292375
    Abstract: A structure particularly suited for use in aerospace industries comprising a base plate, a cover plate, and an orthogonally corrugated core including a pair of core plates formed of a superplastic alloy interposed between the base plate and the cover plate, in sandwiched relation therewith and bonded thereto, each of the core plates being characterized by a plurality of protrusions comprising square-based, truncated pyramids uniformly aligned along orthogonally related axes perpendicularly bisecting the legs of the bases of the pyramids and alternately inverted along orthogonally related planes diagonally bisecting the pyramids, whereby an orthogonally corrugated core is provided.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: September 29, 1981
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: William L. Ko
  • Patent number: 4279966
    Abstract: A pressure resistant square panel made of steel or cast iron comprises flanges extending along peripheral edges of a pressure receiving surface of the panel, a bottom portion along bottom edges of the flanges of the pressure receiving surface, flat portions inside the bottom portion and higher therethan, and reinforcing ribs substantially X-shaped as viewed in a plan view and extending along diagonals of the panel and progressively increasing their heights from corners to a center of the panel.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: July 21, 1981
    Assignee: Bridgestone Tire Co., Ltd.
    Inventors: Hiroshi Wakana, Shigeru Yamada, Akira Sato
  • Patent number: 4273836
    Abstract: A core strip blank is characterized by the provision at its opposite edges of folds or doublers and the resultant core strip has the folded edges disposed substantially normally to the web of the core strip to provide surfaces for the securement of face sheets to the opposite folded edges of the core strip. The resultant core strip can be provided in a variety of configurations and may incorporate such openings or notches as will facilitate the deformation of the core strip into the desired configuration.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: June 16, 1981
    Assignee: Thomas P. Mahoney
    Inventors: James R. Campbell, Roy L. Anspach
  • Patent number: 4251598
    Abstract: A heat reflective and insulative prefabricated panel consisting of a metallic outer facing sheet and a metallic backing sheet encapsulating a plurality of cellular foil sheets. The foil sheets are preformed to present raised ribs which are adapted to cooperate with like ribs of juxtaposed sheets to define enclosed cells that prevent heat transfer by convection.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: February 17, 1981
    Assignee: Transco, Inc.
    Inventor: William Waite
  • Patent number: 4228481
    Abstract: An improved power capacitor dielectric system utilizes the combination of electrode foils having a raised dimple pattern on their surfaces, and only polypropylene film as the dielectric, the polypropylene film having a texture pattern on one surface.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: October 14, 1980
    Assignee: General Electric Company
    Inventors: Nicola G. DiNicola, Robert V. Pastir, William J. Wright
  • Patent number: 4216663
    Abstract: Curved inwardly flanged members in the form of cylinders (1) or conical frusta have the flange (2) thereof formed by folding sheet material (24) about a plurality of fold lines (3,10) to form corrugations or castellations having sides (6) of triangular formation and diverging first frusta segments (11) and second frusta segments (4,16) lying on two diverging conical frusta or short height relative to diameter. Such cylinders and frusta have hubs (25,58) and comprise rotating drums suitable for laundry machines such as clothes washing machines and clothes driers.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: August 12, 1980
    Assignee: Fisher & Paykel Limited
    Inventor: Frank W. Shacklock
  • Patent number: 4184002
    Abstract: Filiform elements, particularly of steel, intended for the reinforcement of agglomerates are improved due to the fact that these elements have a nearly rectangular cross-section and are undulated perpendicular to their longitudinal axis and parallel to the largest dimension of their cross-section.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: January 15, 1980
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Andre Reiniche, Philippe Sauvage
  • Patent number: 4162993
    Abstract: The catalyst support is a spiral formed by winding a single strip of metal upon itself. Indentations in the strip maintain a uniform spacing between the layers in the spiral. Heretofore this uniform spacing has been obtained only by winding a double layer of two strips, one flat and one corrugated.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: July 31, 1979
    Assignee: Oxy-Catalyst, Inc.
    Inventor: William B. Retallick
  • Patent number: 4139670
    Abstract: Composite panels that include a metal skeleton of two superposed metal plates or sheets having groups of protruding bridge-shaped elements that extend into the interspace between the plates or sheets and overlap in a manner to form one or more elongated cage-like columns; a coherent matrix material made of a flowable or pourable mineral and/or organic matrix precursor is provided to substantially fill the interspace to form a substantially rigid compound structure of the panel constituents due to the plate-interlocking function of the cage-like columns. The panels can be flat or curved and are suitable as structural materials, notably as load supporting walls for buildings. Methods for producing such composite panels in a batchwise or continuous operation are disclosed.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: February 13, 1979
    Assignee: Loewe Anstalt
    Inventor: Hans-Beat Fehlmann
  • Patent number: 4091146
    Abstract: A flexible, low porosity airfoil skin is described which includes multilayer flexible, annealed metallic mesh members consisting of two or three such members selected from the class consisting of nickel, Monel alloy, and stainless steel, the members having a mesh size from 60 to 100, the members interlocked mechanically, and the skin having a thickness reduction in the range from 2.5 to 3.0. Such a flexible, low porosity airfoil skin is useful as a covering structure and is particularly useful as a skin or as a substrate for a cooled non-linear airfoil-shaped body, such as a turbine or compressor blade.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: May 23, 1978
    Assignee: General Electric Company
    Inventors: Kenneth A. Darrow, Daniel P. Smith
  • Patent number: 4091155
    Abstract: A contoured work top is provided as a new or replacement work surface to fit over an existing support structure such as a desk or table. The work top has a flat sheet of structural material with a top surface and a bottom surface. A second sheet of structural material is provided having a plurality of spaced apart, parallel raised ribs extending across the second sheet which is rigidly connected to the lower surface at tips of the raised ribs thus supporting the second sheet a spaced apart distance from the flat sheet. Also included is at least one flat strip of structural material extending across the second sheet perpendicular to the raised ribs and rigidly connected to the second sheet at locations between the raised ribs. The work top may also have side walls extending downwards from the edges of the flat sheet beyond the second sheet adapted to retain the work top in place on a supporting structure.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: May 23, 1978
    Inventor: Joseph Henry Behr
  • Patent number: 4045606
    Abstract: A protective for a stove plate of an electric range comprises a heat-resistant aluminum foil into which bulges have been embossed corresponding to the heating units. The embossing is carried out by hand by laying a piece of foil on the stove plate and pressing the foil on and around the heating units. Stripes of a temperature-indicating salt, such as NH.sub.4 MnP.sub.2 O.sub.7, which change color at a predetermined temperature are preferably applied to the foil to give visual indication of over-heating.
    Type: Grant
    Filed: November 21, 1975
    Date of Patent: August 30, 1977
    Inventor: Kurt Ulrich Kalkowski
  • Patent number: 4044186
    Abstract: This device comprises a flexible sheet member having cross convolutions oriented 45.degree. to the shear vector with spherical reliefs at the convolution junctions. The spherical reliefs are essential to the shear flexibility by interrupting the principal stress lines that act along the ridges of the convolutions. The spherical reliefs provide convolutions in both directions in the plane of the cross-convolution ridges.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: August 23, 1977
    Assignee: Rockwell International Corporation
    Inventor: Maynard L. Stangeland
  • Patent number: 4027058
    Abstract: Metal, fiber or plastic panels are fabricated by the attachment of planar imperforate and/or partially perforated outer sheets to a specially formed center member comprising a web or sheet having a deformed surface defining an array of adjacent triangular projections and depressions. The center member is produced by the longitudinal cutting and folding of the web as it passes between two forming cylinders which mesh with one another, the cylinder peripheries carrying complementary arrays of spaced triangular-shaped tooth elements having their base lines aligned in the opposing cylinders, to shear and thereby relieve the passing web laterally so as to produce intermittent parallel cuts and angular folds in the web while gathering the web longitudinally thereby to form triangular, flat-topped cells in the center member. Instead of using two outer sheets, the formed center member can be used per se, e.g., as a packing medium, or it can be combined with only one outer sheet to form a single-face product.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: May 31, 1977
    Inventor: William A. Wootten