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Patent No. 6745394

Ballistic resistant body covering

A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.

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Class 72/379.6 - Forming undulations


Subclass of Class 72 - Metal deforming
Definition: Process including a step of creating a sinuous configuration
No. of patents: 112
Last issue date: 04/10/2012


1      
NumberTitleIssue Date
8151617Turbulizers and method for forming same
Disclosed is a method of forming a heat exchanger turbulizer apparatus including a member having a longitudinal axis, a lateral width and a plurality of strips including first strips and second strips, each strip extending widthwise and being corrugated longitudinal...
04/10/2012
8104320Method and apparatus for corrugating sheet metal
An apparatus for bending sheet metal comprises a housing, a first shaft and a second shaft mounted in the housing, a motor, a first gear mounted on the first shaft, and a second gear mounted on the second shaft. The motor rotates both the first gear and the second g...
01/31/2012
7838171Metal separator for fuel cell and its production method
The present invention provides a metallic separator for fuel cells capable of suppressing dropping out of conductive inclusions due to gaps formed at the interface of a base material and the conductive inclusions due to press-forming, thereby decreasing the contact ...
11/23/2010
7793531Adjustable corrugating die sets and method of forming corrugations of varying configurations
An adjustable die set and method for forming corrugations in a sheet in which pairs of elongated forming bars are detachably mounted parallel to each other in respective holders driven by upper and lower press members. One pair is more closely spaced than the other ...
09/14/2010
7415860Method and apparatus for pressing sheet material
An upper mold member 32 having an upstream upper punch 32a, an upper recess portion 32b and a downstream upper punch 32c that are serially arranged, from a feed upstream side of a sheet material W and a lower mold mem...
08/26/2008
7363791Rotary stamping apparatus and method of forming sheet metal
A rotary stamping apparatus for forming moving sheet metal and having a die assembly moveable forward and backward along a linear path, with upper and lower dies on respective sides of the sheet metal, the dies being closeable on the sheet metal for forming, and, a ...
04/29/2008
7343769Corrugation forming method
A corrugation forming apparatus includes, as forming members, a rack tool assembled to a slide table and a pinion tool which rotates with rotation of a shaft. The apparatus also includes, as a displacement synchronization mechanism, a feed rack integrally assembled ...
03/18/2008
7313941Corrugated sheet member bending machine
A corrugated sheet member bending machine is disclosed to include a base frame, a housing pivotally supported on the base frame and turnable within 90-degrees to fit different workpiece insertion angles and different workpieces, a set of drive rollers mounted on a w...
01/01/2008
7279016Fuel cell bipolar separator plate and current collector assembly and method of manufacture
A fuel cell bipolar separator plate of variable length is formed from a sheet having a fixed width. The sheet is passed through a tool a predetermined distance and a pattern of ribs is formed on a central portion of the sheet with the tool to define a segment along ...
10/09/2007
7276211Process for producing a one-piece, structured metal foil having a hole, metal foil and honeycomb body
A process for producing a one-piece, structured metal sheet having an interior with a hole, provides a predetermined, curved outer contour and inner contour that delimits the hole. A smooth, shaped blank is produced, having an outer edge substantially concentrically...
10/02/2007
7272968Device for shaping corrugated fin
The configuration comprises a shaping member 3 having a substantially rectangular shape and shaping the inner surface side of a bent portion 1b, a worm gear 2 slidably linked with the shaping member 3 and gradually reducing the dis...
09/25/2007
7240529Partially reinforcing method and apparatus of metal material
The present invention intends to provide the partially reinforcing method and apparatus for reinforcing the required part of the metal material having good forming property and relatively low strength (hardness and yield stress) by the press processing. The p...
07/10/2007
7234336Method and embossing die for producing a body structural part from a vault-structured sheet metal
A method and a tool are provided for producing structural parts from sheet metal which have a vault-structured stiffening zone and adjacent, flat connection zones. The starting point for producing these structural parts is vault-structured blanks which are smoothed ...
06/26/2007
7210324Process and apparatus for producing an ordered packing
The invention relates to a process and an apparatus for producing a profiled sheet, in which the sheet is provided with a corrugation which runs obliquely with respect to the edges of the sheet and has a substantially constant angle of inclination. At least one edge...
05/01/2007
7181948Method of making structural components
Elongated structural components having regions of different thicknesses, especially for use in automobile bodies, are produced by flexible rolling metal strip so as to form along a length thereof rolled-strip segments of different wall thickness. The sheet bars are ...
02/27/2007
7121128Method of manufacturing elliptic deep-drawn products
A method of manufacturing an elliptic deep-drawn product including a first step of providing an intermediate product and a second step of providing an end product. In the first step, a rotary forming die is used to form in a blank a substantially round formed portio...
10/17/2006
7114363Sheetmetal forming method
A forming method for producing wall and ceiling cladding sheets from sheetmetal, wherein embossed patterns are pressed into a metal sheet so that they cover the entire surface area of the sheet substantially uniformly. In the method, the embossed pattern is formed f...
10/03/2006
7093470Methods of making integrally stiffened axial load carrying skin panels for primary aircraft structure and fuel tank structures
Methods for making skin panels suitable for use in aircraft structures and fuel tank structures, such as fuselages and reusable launch vehicle propellant tanks. A first method includes the following steps: machining a starting plate to a final part geometry; and exp...
08/22/2006
7040134Punch for forging a liquid ejection head
A male die for forming a member incorporated in a liquid ejection head is disclosed. Each of a plurality of first forging punches is operable to form a first recess on a metal plate. The first forging punches are arranged at a fixed pitch to form a punch row in a fi...
05/09/2006
7040387Heat transfer device
An apparatus for transferring heat from a first fluid to a second fluid, which is separated from the first fluid, having a stack-like or saucer-like structure comprising at least two plies (1, 2, 3), in particular plates (1, 2, 3), whereby each ply (
05/09/2006
7040001Metal encaustic tile making machine
A metal encaustic tile making machine includes a machine base, a corrugation forming roller unit controlled to corrugate a continuous sheet of metal sheet material into a corrugated metal sheet, an angle forming unit controlled to stamp the corrugated metal sheet in...
05/09/2006
7011893Metallic layer with regions of varying material thickness, method for producing such a metallic layer and honeycomb body at least partly produced from such metallic layers
A process for producing a metallic layer includes forming structures at least in subregions of the metallic layer. The structures have corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the peaks, and a lower bearing sur...
03/14/2006
7000443Apparatus and method for folding a sheet material
Apparatus and method for folding a sheet material, preferably an electrode sheet, into a fan-fold orientation. A securement means secures a portion of the sheet material to a rotatable plate in a plane parallel to the rotatable plate. A rotatable releasable clamp se...
02/21/2006
6997027Forging punch
There is disclosed a punch for forging a metallic plate member. A first die is adapted to be opposed to a first face of the plate member. A second die is adapted to be opposed to a second face of the plate member. A plurality of first projections are provided on the...
02/14/2006
6957558Encaustic metal tile fabrication equipment
An encaustic metal tile fabrication equipment includes a roller unit operated to roll an encaustic metal sheet into a corrugated encaustic metal sheet, a shape forming mechanism having a first shape forming mold unit and a second shape forming mold unit and operated...
10/25/2005
6948277Methods of making support structures for trellis systems
Methods for making trellis support structures for use in supporting vine borne crops are disclosed. The support structure includes a metallic support member that is bent into a modified U-shape and attached to a metallic cross arm using a process that produces consi...
09/27/2005
6948350Wave-processing method and wave-processing die for core metal of wet friction material
A ring-shaped core metal is pressed and compressed by a main punch and a counter punch so as to have a wave shape. Moreover, each group of three micro-protrusions provided on each of top points of the wave shape are cut in the core metal. Then, three notches are cut...
09/27/2005
6920775Panel crimping machine having a gap adjustment mechanism
The present invention is a crimping machine capable of forming an improved building panel that includes notched inclined side walls. The crimping machine imparts a unique design of notched inclined side walls. The crimping machine incorporates two sets of male and f...
07/26/2005
6915675High thermal efficiency heat exchanger, partially corrugated sheet metal for heat exchangers, plant and procedure for obtaining said partially corrugated sheet metal
A procedure for obtaining partially corrugated sheet metal (11) comprises the following work phases: provision of a roll of sheet metal (11) to feed a respective means of unrolling and transferring said sheet metal (11); compression of said shee...
07/12/2005
6912783Method of manufacturing a valve plate for compressor
In a manufacturing method of a valve plate for a compressor according to this invention, a punch die 43 formed with a convex and concave configuration at its tip end face 42 is set at a press machine 41, and the punch die 43 is depressed ...
07/05/2005
6840080Press-forming apparatus
A press-forming apparatus comprises a pair of press-forming units detachably secured to movable and stationary units facing each other, respectively. A metallic material is subjected to a press-forming through the press-forming units and then discharged therefrom as...
01/11/2005
6835487Stainless steel separator for fuel cells, method for making the same, and solid polymer fuel cell including the same
A stainless steel separator having gas channels including grooves and projections for fuel cells. The separator has a composition including about 0.03 mass percent or less of carbon; about 0.03 mass percent or less of nitrogen, the total content of carbon and nitrog...
12/28/2004
6834525Adjustable corrugation apparatus and method
An apparatus and method for forming corrugated contours in a sheet are provided. The apparatus includes at least three pairs of elongate dies that extend in a longitudinal direction. Each pair of dies is generally parallel and defines a nip therebetween so that the ...
12/28/2004
6790387Process of producing diffraction gratings on the surface of articles
A process of producing an article having a surface provided with an optical diffraction grating such that the surface generates visible color when illuminated with diffuse white light. The process involves deforming a starting material to produce the article having ...
09/14/2004
6772617Method and apparatus for in-situ leveling of progressively formed sheet metal
A stretch-forming press for stamping continuously fed sheet metal includes a ram, a base member, and a feed mechanism configured to advance a strip of sheet metal through the stretch-forming press. A forming station has a die configured to form a desired pattern in ...
08/10/2004
6660403Flexible corrugated multilayer metal foil shields and method of making
A rigid structural foil and a method for forming a rigid structural foil is provided. The structural foil includes at least two layers of metal sheets, valley areas and spacers. The metal sheet layers include metal foil having a thickness of 0.006 in. The...
12/09/2003
6655184Warm/hot corrugation machine and method for corrugating low-ductility foils
A machine and method for corrugating a metal foil strip utilizes an enclosure defining a chamber and a controllable heat source for heating the chamber. The chamber may optionally include at least one gas that is also heated by the heat source. At least o...
12/02/2003
6586111Corrugated multilayer metal foil insulation panels and methods of making
Multilayer metal foil pads or panels for heat or sound insulation or shielding comprising two or more corrugated metal foil or metal sheet layers wherein a flat metal foil or metal sheet layer is positioned between each pair of corrugated layers. The corr...
07/01/2003
6524722Corrugated structural metal plate
A corrugated structural metal plate includes longitudinally extending corrugations defined by alternating crests and valleys. Each of the crests and valleys includes longitudinally extending flat segments that are configured to reduce buckling of the plat...
02/25/2003
6502447Device and method for manufacturing turbulators for use in compact heat exchangers
A progressive die for forming a turbulator having multiple rows of axial corrugations. The corrugations are slit and offset such that artificial turbulence is generated as it passes through the corrugations. The device includes a plurality of dies dispose...
01/07/2003
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