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| Number | Title | Issue Date |
| 7823858 | Method for forming masonry unit Masonry units (10) are integrally assembled by tightening forces of bolts (60) and nuts (70), in a condition that interlayer metal plates (50) are interposed between the masonry units. A basic form (11) of the masonry unit is conta... | 11/02/2010 |
| 6871688 | Apparatus and method for manufacturing die-cast product Fluid pressure of a first fluid chamber of a driving means, which acts as a back pressure, is monitored by a monitoring means when a core pin is driven by the driving means in an inserting direction before injection of a molten material into a cavity of a die arrang... | 03/29/2005 |
| 6598848 | Molding device A molding device has a first outer mold, a second outer mold engaging with the first outer mold, a silicon mold disposed between the first outer mold and the second outer mold, a center mold, an upper ring, and a lower seat. The first outer mold has a fir... | 07/29/2003 |
| 6542214 | Reflection color liquid crystal display An STN liquid crystal layer (8) is sandwiched between a first substrate (1) having first electrodes (6) and a second substrate (2) having second electrodes (7), a reflective layer (3) is formed over the entire first substrate (1), and a color filter (4) i... | 04/01/2003 |
| 5824257 | Molding core construction and process for molding of high-density electrical connector housings An improved core detail tooling assembly for use in the injection molding of electrical connector housings utilizes opposing sets of tooling elements and one set of tooling elements positively engages the other set at a location exterior of openings in th... | 10/20/1998 |
| 5806829 | Concrete hole former A hole former for use in forming a concrete wall section having a hole extending therethrough. The concrete wall section is fabricated in a cavity that is defined by a first and a second form. The hole former comprises a plug and a preferably detachable s... | 09/15/1998 |
| 5667200 | Concrete building block system A concrete building block (2) has complementary projections (10) and recesses (12) to cause it to interlock with other blocks (2). A T-shaped channel (16, 26) on the top surface (4) receives an anchor member (32). A projecting end (36) of the member (32) ... | 09/16/1997 |
| 5660758 | Mold apparatus for manufacturing a plastic article with interrupted interior threads for securing a heat sink to a heat generating member A article with interior interrupted threads and a mold apparatus for manufacturing the same is provided. The molded article includes an aperture positioned completely therethrough as defined by an inner wall. The inner aperture wall carries a series of th... | 08/26/1997 |
| 5540411 | Invert former for manhole base section A plastic liner for protecting concrete manhole interior surfaces from corrosion wherein the liner includes provisions for creating a strong mechanical lock between the liner and the interior surfaces. A side of the liner which includes the provisions has... | 07/30/1996 |
| 5470522 | Method of molding Y-adapter with a sideport radius A method of molding the main body of a Y-adapter that has a straight passageway extending from one extremity to the other and an arcuate passageway that is generated along the arc of a circle. Core pins for the straight and arcuate passageways are placed ... | 11/28/1995 |
| 5439370 | Device for molding plastic material ferrule for optical fiber connectors A device for molding plastics material ferrules for optical fiber connectors comprises a molding cavity defined by an accurately sized cylindrical bush defining the outside diameter of the ferrule. A cover closes the molding cavity. A peg joined to the co... | 08/08/1995 |
| 5381995 | Concrete hole former A compressible band and end retainer assembly which secures opposite ends of a band to an intermediate spacer. The band mounts between facing concrete sidewall forms to define a hole, upon pouring and curing a slurry of surrounding concrete. Various band ... | 01/17/1995 |
| 5358214 | Mold for concrete modular precastings The mold is comprised of a bottom (4) wherein there are provided grooves (8) extending transversely between containment sidewalls (6); said sidewalls (6) have windows (14) which are aligned with the grooves (8) which preferably are delimited by the faces ... | 10/25/1994 |
| 5200209 | Apparatus for producing plastic parts with a resilient projection Apparatus for producing plastic parts with a resilient projection, such as connectors for corrugated tubing. The apparatus includes means for flowing plastic material on a core provided with a recess to mould the resilient projection, plural core cam surf... | 04/06/1993 |
| 5139721 | Method and apparatus for forming a precast curb system A method and apparatus for forming a curb section of a predetermined length sub-divided into modules by transverse grooves which give the appearance of shorter blocks and provide for fracturing the curb section at those locations. Each module of the curb ... | 08/18/1992 |
| 5108282 | Biaxial concrete masonry casting apparatus A CM block machine for casting masonry blocks includes a mold cavity formed between a mold box and a mold core containing one or more plungers selectively extending laterally into the cavity along a second axis which is normal to the axis of casting so as... | 04/28/1992 |
| 4997356 | Mold for manufacturing a skin covered foamed plastic article A mold for manufacturing a skin covered foamed plastic article in which the middle mold is to be attached to the upper mold so as to eliminate the attaching and removing of the middle mold for every manufacturing cycle, without creating a danger of damagi... | 03/05/1991 |
| 4986942 | Method for forming ported cylinder sleeve liner foam pattern A single-piece foam pattern for use in the lost foam casting of a ported cylinder sleeve is formed in a molding tool having a pair of displaceable elements and a removable center core. Ports, of preselected size, shape and location, are defined by movable... | 01/22/1991 |
| 4941643 | Apparatus for forming inverts and manhole assemblies and the like utilizing adjustable invert forming members joined with an intermediate flexible portion Apparatus for forming inverts in a manhole base comprising at least one adjustably positionable channel-forming member for forming an invert which communicates between associated sidewall openings of a manhole base. Flexible members join the ends of the i... | 07/17/1990 |
| 4941642 | Mold construction comprising a plurality of mold portions The invention relates to a negative mold containing a plurality of mold portions which can be detached from each other. It functions in particular for the manufacture of shapes consisting of plastic. The two mold halves enclose a molding chamber receiving... | 07/17/1990 |
| 4919189 | Method of forming as-cast holes by using cores, and apparatus for practicing the method A method for forming an as-cast hole by using a core involves forming an undercut and casting by using a core die which is slidable at an angle with respect to mold closing and opening directions. At the same time, an as-cast hole with an axial direction ... | 04/24/1990 |
| 4909977 | Method for molding thin gel slabs horizontally with integrally molded large volume sample wells A method is disclosed for molding thin gel slabs horizontally having deep, large volume sample wells molded integrally and in communication with the thin gel slab. The disclosure includes a method for molding at least two contiguous thin gel slabs horizon... | 03/20/1990 |
| 4881714 | Concrete molding system with tubs Concrete molding apparatus that includes an integral lattice frame having a first set of elongated expanses extending in one direction on the frame and a second set of elongated expanses extending transversely of the first set. These expanses define openi... | 11/21/1989 |
| 4877394 | Apparatus for molding parts having small diameter hole A process for applying tension to the extending ends of a thin wire core of a mold to apply tension to the core during the molding process to maintain alignment of the core at all times during the molding process. Also included is apparatus for carrying o... | 10/31/1989 |
| 4867412 | Apparatus for the production by powder metallurgy of a section of a header pipe of a heat exchanger Apparatus for the production by powder metallurgy of a heat exchanger block in which two spaced concentric half shells are provided with holes in which profiled pipes are inserted. The profiled pipes are internally supported by pins when metal powder is i... | 09/19/1989 |
| 4844405 | Injection molding of thin-walled plastic products A mold for injection molding a plastic product having a thin-walled area includes a first mold part and a second mold part defining a mold cavity therebetween, encompassed by a parting line, for forming the plastic product, and further defining a gate for... | 07/04/1989 |
| 4842508 | Core insert actuator A device for inserting and withdrawing a core in plastic and die cast molds. A rotatable cylindrical nut is located within the hollow cylindrical interior of a support housing. The nut has a threaded inner cavity. A non-rotatable slide extends through an ... | 06/27/1989 |
| 4836495 | Retainer mold for forming foamed automotive articles A retainer mold for forming foamed automotive articles, particularly instrument panels, after a thin vinyl skin shell has been mounted in the mold. The mold includes a plurality of die block assemblies mounted in recesses formed in a surface of the mold c... | 06/06/1989 |
| 4819906 | Mold for improved press-on cap and seal A mold to manufacture an improved press-on bottle cap is disclosed. The cap has a top disk and a thin-walled outer skirt dependent therefrom with an annular tear score line on its inside wall and a laterally projecting tear tab which permit the cap to div... | 04/11/1989 |
| 4787596 | Mold for forming plastic Luer nuts A mold for the formation of plastic Luer nuts having a polygonal internal cross-section. The mold includes both movable and fixed cavity sections, so that a non-round threaded core can be unscrewed from within the Luer nut.... | 11/29/1988 |
| 4768747 | Slide clip An improved, one-piece slide clip suitable for molds having at least one cam-actuated slide for pulling a core element outward and inward from the parting line of the mold as the mold is opened and closed, the said slide clip being wholly enclosed within ... | 09/06/1988 |
| 4752059 | Injection mold A transfer film comprising a base film and a releasant layer, an ink layer and an adhesive layer laminated on the base film in this order is inserted into a cavity of an injection mold, and injection molding material is injected into the cavity. After the... | 06/21/1988 |
| 4711752 | Method and apparatus for molding fiber optic connector ferrule An apparatus is provided for use in molding a ferrule which must hold an optical fiber cable so the optical fiber lies precisely concentric with the cylindrical outside surface of the forward portion of the ferrule. A corepin which lies within a mold to f... | 12/08/1987 |
| 4687434 | Apparatus for molding two-piece plastic fastener The molding apparatus of this invention produces a one-piece molded unit that provides a two-piece plastic fastener whereof one piece is a grommet having a head with a flat front surface and forwardly projecting legs defining a sidewardly and forwardly op... | 08/18/1987 |
| 4684101 | Quick change mold insert An injection molding mold including an insert in-part defining the mold cavity and readily accessible for replacement from the side of the mold. The insert has a molding head at the mold cavity, a shank extending into a socket in the mold, a mortice in th... | 08/04/1987 |
| 4609339 | Matrix mold for making stackable containers The invention relates to a matrix mold, in which at least one mold cavity is bounded by the head of an ejector at the lower opening of a cup, from which in the substantially truncated conical wall of this cup, widening upward, facing the interior, by at l... | 09/02/1986 |
| 4608005 | Clamping device A clamping device of this invention is constructed of bases on which molds are slidably moved, regulating portions each provided above the corresponding base and having a clamping surface which is inclined relative to the base, shifting means provided bes... | 08/26/1986 |
| 4484724 | Forming element and forming apparatus for casting manhole inverts Apparatus for forming inverts in manhole floors between angularly-related pipeline sections includes a set of a plurality of wedge-shaped forming elements each having a molding surface of corresponding compound longitudinal and transverse arcuate curvatur... | 11/27/1984 |
| 4470573 | Device for shaping color test samples of dental crown porcelain A device for shaping color test samples of porcelain formulations for use in making dental crowns, comprising a mandrel having a axial bore, a cylindrical rod insertable axially into the bore of the mandrel, and a releasable coupling element between the r... | 09/11/1984 |
| 4439122 | Device for fabricating panels of expanded synthetic materials The installation comprises a rectangular, parallelepipedal, leaktight steam chamber (1) provided with a gate (2) on one of the short sides, inside which a tubular fixed mold (4) of perforated steel plate is attached at a distance from the walls of the cha... | 03/27/1984 |
