...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7270892 | Friction bearing The invention describes a friction bearing with a steel support shell and a lead-free bearing metal layer on the basis of copper with the main alloy elements of tin and zinc, which layer is applied to the support shell. In order to combine advantageous sliding prope... | 09/18/2007 |
| 7107679 | Forming method of throttle apparatus for internal combustion engine A throttle valve and the throttle body are formed substantially simultaneously in the same dies. When a movable die moves away from a fixed die, a body ejector pin, a valve ejector pin, and a motor housing ejector pin simultaneously push a bore wall of the throttle ... | 09/19/2006 |
| 7107683 | Forming method of throttle apparatus for internal combustion engine A molding dies have a first shaft holding portion and a second shaft holding portion. The first shaft holding portion supports an outer surface of a metal shaft which is exposed between an axial end surface of the throttle valve and a first collar molded in the thro... | 09/19/2006 |
| 7107678 | Forming method of throttle apparatus for internal combustion engine A throttle valve and the throttle body are formed substantially simultaneously in the same dies. The melted resin is injected in to a cavity through a pair of valve gates. The valve gates are symmetrically located with respect to the throttle valve shaft. A deformat... | 09/19/2006 |
| 7089663 | Forming method of throttle apparatus for internal combustion engine A throttle valve and the throttle body are formed substantially simultaneously in the same dies. The melted resin is injected in to a cavity through a pair of valve gates. The gas evaporated from a melted resin and remaining air in the cavity are expelled from the c... | 08/15/2006 |
| 6887063 | Processing mold including unitary movable mandrel for preparing tire support A processing mold is suitable for preparing a tire support. One processing mold that is particularly advantageous includes a processing mold having a first mold body opposing a second mold body, and the first and second mold bodies are aligned through a mandrel. In ... | 05/03/2005 |
| 6855286 | Injection mold and method for manufacturing injection molded articles In an injection mold comprising a cavity and a gate for feeding a molding material into the cavity, the molding material fed from the gate into the cavity is divided into two streams that flow through the cavity and then meet at a confluent point so that the molding... | 02/15/2005 |
| 6691975 | Concrete tank seal cast A closed end of a one piece flexible elastomeric seal is mounted in one end of a tubular liquid concrete tight frame that is mounted on a removable door of one wall of a concrete wall mold, the other open end of the flexible seal is in liquid concrete tig... | 02/17/2004 |
| 6514444 | Method of manufacturing a molded plastic article and a glass molding plastics The object of the present invention is to provide a molded plastic article having high accuracy. To attain this object, the present invention provides a method of manufacturing a column or panel shaped molded plastic article having a desired molding shape... | 02/04/2003 |
| 6468068 | Resin seal ring die with various mold cut portions In the manufacture of a seal ring having a cut portion at one position on the circumference by injecting a molten molding material from a gate into a cavity of a forming die, the gate is provided at a position apart from the opposite position to the cut p... | 10/22/2002 |
| 6467526 | Method of making a jewelry ring in a vertical mold A method of molding a jewelry ring having a beveled or rounded inner diameter and a hollow portion in a vertical mold comprises utilizing a multi-piece plug and a soluble insert in a mold to define a mold cavity in the desired shape of the ring or a porti... | 10/22/2002 |
| 6461557 | Method of molding an O-ring retainer in components using interlocking molds A method and apparatus for forming a plastic component with at least a first and second set of integrally molded castellations for retaining an O-ring therebetween; the component therefrom; and further embracing a method and apparatus for forming such a p... | 10/08/2002 |
| 6315299 | Apparatus and method of forming a tension resistant O-ring A method of forming a tension resistant O-ring is formed by extruding a length of precured elastomer with a coextensive central aperture; longitudinally dividing the elastomer; winding a strand of nonelastic synthetic material to form an endless ring havi... | 11/13/2001 |
| 6224814 | Seal ring and method of manufacturing the same In the manufacture of a seal ring having a cut portion at one position on the circumference by injecting a molten molding material from a gate into a cavity of a forming die, the gate is provided at a position apart from the opposite position to the cut p... | 05/01/2001 |
| 6123505 | Stator produced by injection molding A stator for a hydrodynamic torque converter which is produced by injection molding with axially drawn dies. The stator hub has stator blades produced by use of a thermoplastic material to fill the dies in the injection molding process. The stator blades ... | 09/26/2000 |
| 5980800 | Method for making a bracket of a brake lever A method uses a mold for making a bracket of a brake lever device. The mold includes a mold cavity and a stem and a block extended inward of the mold cavity for forming the aperture and the orifice of a band of the bracket. A material is then injected int... | 11/09/1999 |
| 5939002 | Apparatus and process for changing a sidewall insert of a tire mold A molding apparatus and process is described in which a side wall mold insert is accessible and releasable from the interior of the molding apparatus. A fastener reversibly seats the side wall insert to the mold frame, the insert having an inclined rim wa... | 08/17/1999 |
| 5935292 | Annealing mold and retainer for making a fiber optic current sensor An annealing mold and fiber retaining device includes a fiber holding plate having fiber channels and an annealing insert. Retainers are provided for attachment to the plate to retain fibers in the channels. After annealing, the annealing insert is replac... | 08/10/1999 |
| 5843326 | Process and device for producing at least a portion of a tire mold comprising at least one element molding a non-removable motif The invention concerns a process and an associated device for the manuface by molding on a countermold (1) by means of a pourable, solidifiable material, a mold intended for molding at least a portion of a tread of a tire, said mold comprising one or mor... | 12/01/1998 |
| 5605646 | Containers for preparation and display of foods A domed container for the preparation and display of food includes a receptacle, a dome cover, and a hollow mold member. The receptacle has a bottom with a top surface and an outer circumference. The bottom possesses at least one groove in a closed, conti... | 02/25/1997 |
| 5538217 | Ring-cake preparation system A ring-cake preparation system is adapted for use in association with a ring-cake and a ring-cake container. The ring cake container is formed in a cylindrical configuration. A plate with a post is positioned within the cake container. The apparatus inclu... | 07/23/1996 |
| 5536463 | System and method for molding plastic wheel covers A wheel cover mold assembly is provided for all wheel cover styles of a particular wheel diameter and mounting system. The mold assembly includes a top and a bottom base. The top base carries a mold cavity plate and the bottom base carries a mold core pla... | 07/16/1996 |
| 5431553 | Manhole seal molding apparatus An apparatus is provided for installation in a manhole assembly. The mold apparatus is filled with a sealing material to establish a solid bond that blocks inflow of fluids at the joint between abutting components of the manhole assembly. The apparatus in... | 07/11/1995 |
| 5269669 | Tire mold A tire mold including a pair of shells (2) for molding the side walls of tire and a ring or sectors (1) for molding the tread of the tire and in which each sector (1) of the mold includes an outer support (10) and an inner mold fitting (11). The contact... | 12/14/1993 |
| 5067686 | Annular base mold A unitary, molded, concrete stabilizing base for refuse cans and the like, and method and apparatus for its manufacture are described. The base takes the form of a concrete annulus having a right-triangular cross section and an inner diameter dimensioned ... | 11/26/1991 |
| 5066213 | Wax-casting components A mold-forming cup has a frustoconical interior tapering in cross-sectional size from the top of the cup to the bottom. A metal master model is mounted generally centrally of the interior of the cup, whereupon the cup is packed with rubber mold material. ... | 11/19/1991 |
| 4909972 | Method and apparatus for making a solid foamed tire core A method of making a solid core locatable between a wheel rim and a tire fitted to the rim, includes introducing a foamable composition into a mould cavity having a substantially inflexible mould surface. The cavity is suitably shaped so that a core locat... | 03/20/1990 |
| 4786027 | Apparatus for molding composite metal-elastomer wheels Apparatus for molding a composite metal-elastomer styled wheel in which a middle mold part consists of a metal wheel disc and rim subassembly. A base mold part seats against the outboard face of the metal wheel in the closed condition of the mold and has ... | 11/22/1988 |
| 4755339 | Method and apparatus for making molded window gasket An improved window gasket assembly and the apparatus and associated method for reaction injection molding such as assemblies, as well as other molded articles, are disclosed. The gasket is preferably integrally molded from an elastomeric material such as ... | 07/05/1988 |
| 4687178 | Wax ring tube with graduations A wax ring tube used in manufacture of a ring-like ornament by casting it using a lost-wax process. Plotting graduations are formed on inner peripheral wall surface of a hole bored along the lengthwise direction of a wax ring tube body.... | 08/18/1987 |
| 4643863 | Process for making reinforced sealing gaskets The process provides for depositing, on a non-adhesive support, a thread of a fluid material for gasket manufacture from a nozzle that is displaced above the support along a path coinciding with the gasket layout, with subsequent curing of the fluid mater... | 02/17/1987 |
| 4643864 | Process for making sealing gaskets A thread of a fluid material for gasket manufacture is deposited onto a non-planar, non-adhesive support sheet (12) from a nozzle (22) that is displaced above the support along a path corresponding to the outline of the gasket, with subsequent curing of t... | 02/17/1987 |
| 4569713 | Apparatus for making fiber reinforced armatures A mold for making steering wheels by winding resin impregnated fibers. The mold includes a hub support pedestal to support a hub about which fibers are wound, means having a rim forming recess, a plurality of ramps connecting said means having said rim fo... | 02/11/1986 |
| 4519567 | Mold for manufacturing an annular object of elastic material A mold for manufacturing an annular object of elastic material such as a sealing ring having a reinforcing element which is completely or partially embedded therein, comprising support surfaces on pin members supported by the mold and projecting into the ... | 05/28/1985 |
| 4493472 | Mould used for making a racket frame A mould used for making a racket frame comprises an upper mould piece, a lower mould piece and an intermediate mould piece which cooperate to form a cavity that imparts a racket frame shape with the parting line of the mould pieces lying apart from a plan... | 01/15/1985 |
| 4458875 | Easy release mold The apparatus consists of a vessel that is transparent to microwaves, an inner coating of material that is heated by microwaves and a coating inside that that will reflect microwaves. In use the user allows his mold substance to set in the ordinary way. When ... | 07/10/1984 |
| 4419908 | Mold and method of making spoked wheels and product of same A fiberglass reinforced plastics steering wheel is disclosed and a mold and method for making same. The wheel is made by disposing binder and the fiberglass in an annular cavity and in ramp-like radial cavities of a mold and are pressed into shape by a we... | 12/13/1983 |
| 4282258 | Method and apparatus for the manufacture of formed edible products and products resulting therefrom A method for the manufacture of formed edible products from moist edible pieces. Pneumatic suction draws the pieces into a mold or die cavity. A binder such as a gel solution is applied to the pieces in the cavity to cause adherence between the pieces. Th... | 08/04/1981 |
| 4279122 | Method of making chain A method of making a chain generally consisting of forming at least two links integrally so that the two links are interlocked and are joined together and then severing the links along the joint to provide at least two separate, interlocked links.... | 07/21/1981 |
| 4241492 | Process for manufacture of valve seat The present invention concerns a method of manufacture of valve seats which comprises forming a series of vertically stacked molds each having at least one mold cavity with a configuration approximating that of a ring-shaped valve seat insert blank. After... | 12/30/1980 |