Abstract: Systems and methods for printing a three-dimensional object containing information embedded as three-dimensional physical representations are disclosed. The methods include receiving information to be embedded in the three-dimensional object, determining a mapping between the received information and a plurality of three-dimensional physical representations to be embedded in the three-dimensional object, generating a build sequence that will cause the three-dimensional printing device to print the three-dimensional object comprising the plurality of three-dimensional physical representations in accordance with the mapping. The three-dimensional printing device uses the build sequence to print the three-dimensional object comprising the plurality of three-dimensional physical representations.

Abstract: A method for producing a part by molding with an embedded 2D barcode defined in the surface of the part and the embedded 2D barcode subsequently being readable using a light source and a camera, the method including providing a mold with an array of individual areas of optical anisotropic surface structures, where at least a number of the individual optical anisotropic structures forms a two-dimensional barcode or data matrix; making a replica of the mold, the replica including the array having the property that the directional reflection coefficient of the individual areas of optical anisotropic surface structures is depending on the illumination angle and detection angle in a way that is not rotational symmetric around the axis normal to the surface of the replica, the array being readable by illumination and detection of reflection intensity of the illumination source under a non-normal angle to the surface of the replica.

Abstract: A brazing system for brazing component members of a workpiece has a brazing chamber an inside of which is made a heating space of a volume corresponding to the workpiece, a radiant heating means provided with a plurality of heating sources which are positioned so as to correspond to a plurality of regions into which two facing surfaces of the workpiece are respectively divided, a convection heating means for circulating a heated inert gas to the heating space so as to heat the workpiece, and a control means for controlling the operation of the heating sources and the circulation of the inert gas. Each heating source is independently controlled by the control means, and the convection heating means circulates the inert gas so as to reduce a temperature difference of the workpiece caused by the heating sources.

Abstract: Compositions comprising (1) a refractory and/or a binder, and (2) bis-cyclopentadienyl iron cyclopentadienyl manganese tricarbonyl, derivatives thereof, and mixtures thereof.

Abstract: A numbering device is disclosed for marking molded cast parts, the device including a plurality of concentric cylinders having indicia disposed on an end thereof, the cylinders being rotatingly indexable to cause the indicia to move as desired to form the desired mark, the mark is then impressed into a sand mold and subsequently reproduced on the cast part.

Abstract: This invention relates to a process for preparing detailed foundry shapes (e.g. molds and cores) used in casting metal articles. The process involves preparing foundry shapes from hollow ceramic microspheres bonded with organic or inorganic binders. The foundry shape is then detailed by machining, cutting, stamping, or otherwise removing material from the foundry shape to provide special shapes, letters, numbers, insignia, machine readable codes, etc. on the surface of the foundry shape. The foundry shapes are used to produce detailed metal castings. This detail can be unique to a single casting to provide a permanent traceable mark for casting identification from the time of manufacture to disposal.

Abstract: A bar code identification stencil for uniquely identifying a plurality of articles. The stencil includes a carrier strip, which carries an identification code or symbology. The identification code or symbology is formed of a plurality of spaced apart data cells, or data cells, which are used to form a machine readable bar code. The stencil will be made of materials compatible to the manufacturing processes, which make the articles to be marked, and compatible to the materials out of which the articles to be marked are made. The stencil is scalable in size and shape, as are the data cells, or data cells, scalable in size and shape—all as required by the specifications of the data symbology to be directly marked on the part, or article. The bar code is unique for each of the plurality of articles to be identified.

Abstract: A bar code identification stencil for uniquely identifying a plurality of articles. The stencil includes a carrier strip which carries an identification code. The identification code is formed of a plurality of spaced a part markers which are used to form a machine readable bar code. The bar code is unique for each of the plurality of articles to be identified.

Abstract: A bar code identification stencil for uniquely identifying a plurality of articles. The stencil includes a carrier strip, which carries an identification code or symbology. The identification code or symbology is formed of a plurality of spaced apart data cells, or data cells, which are used to form a machine readable bar code. The stencil will be made of materials compatible to the manufacturing processes, which make the articles to be marked, and compatible to the materials out of which the articles to be marked are made. The stencil is scalable in size and shape, as are the data cells, or data cells, scalable in size and shape—all as required by the specifications of the data symbology to be directly marked on the part, or article. The bar code is unique for each of the plurality of articles to be identified.

Abstract: A bar code identification stencil for uniquely identifying a plurality of articles. The stencil includes a carrier strip which carries an identification code. The identification code is formed of a plurality of spaced a part markers which are used to form a machine readable bar code. The bar code is unique for each of the plurality of articles to be identified.

Abstract: A bar code identification stencil for uniquely identifying a plurality of articles. The stencil includes a carrier strip which carries an identification code. The identification code is formed of a plurality of spaced apart markers of voids which are used to form a machine readable bar code. The bar code is unique for each of the plurality of articles to be identified.

Abstract: A method and an apparatus for marking green sand molds are proposed, in which the surface of the sand is individually marked by means of an identification once compacting of the molds in the mold cavity has taken place, in such a way that the marking is transferred from the surface of the sand to the casting by the casting operation.

Abstract: A die for processing a pliable plastic moldable material, particularly a plastic resin, has a cylindrical circular cross sectioned passage provided in the die wall. A marking device for the die comprises a ring body held space-fixed in the cylindrical circular cross sectioned passage of the die and a cylindrical circular cross sectioned central body received rotatable, coaxial, and stepwise lockable in the ring body. Both the front surface of the central body and the ring shaped front surface of the ring body form part of the embossing surfaces of the die. The rotatable front surface of the central body carries an indicating mark, while the space-fixed ring shaped front surface of the ring body adjoining the rotatable front surface of the central body is provided with a number of other marks, which can give the date or dates.

Abstract: Apparatus for pneumatically stamping identifying impressions on a workpiece is provided. The apparatus includes a double-acting air cylinder having a hollow piston rod. An impact piston is provided inside the barrel formed inside the piston rod to, alternatively, seal an aperture in the piston or to travel inside the barrel in order to strike a plunger mounted in a plunger housing slidably supported by the leading end of the piston rod. A stamping head having an anvil adjacent to the stamping characters is provided to be mounted on the end of the plunger housing. In operation, compressed air is injected behind the piston rod thereby extending it toward the workpiece while compressed air is provided ahead of the impact piston to retain it in seated position on an aperture in the piston of the piston rod. When the stamping characters engage the workpiece, further advancement of the piston rod closes the source of compressed air ahead of the impact piston and opens venting apertures.