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| Number | Title | Issue Date |
| 7341685 | Block forming method A block forming apparatus is provided. The block forming apparatus includes first and second jackets detachably secured to a base pallet. The first and second jackets may be removed from the base pallet during the curing period of a block for use with a second base ... | 03/11/2008 |
| 7000885 | Apparatus and method for forming a sol-gel monolith utilizing multiple casting A mold is configured to form a gel monolith including a first gel portion and a second gel portion. The mold includes a base including a first hydrophobic surface. The mold further includes a tubular outer wall including a second hydrophobic surface, and the outer w... | 02/21/2006 |
| 5851564 | Apparatus for forming a hollow structural profile An apparatus for making a lightweight, thin wall, seamless, hollow structural profile using a simple mold. The apparatus includes a base for supporting a mandril and a two piece outer form which bolts together assembled. A mixture is poured or injected in... | 12/22/1998 |
| 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 |
| 5338498 | Method for formwork, and dismantling of formwork, of walls of poured material raised above a reference surface, and means for employment of this method A method for assembly and disassembly of formwork for walls (1) of poured material raised above a reference surface (2) using boards (3) each including a shuttering face (4) and equipped with wheels (31, 32) at their base. Assembly includes from an unshut... | 08/16/1994 |
| 5290006 | Expanding form for pouring mixed cement to reposition manhole castings A lightweight metal or plastic form that when collapsed can be installed on the inside of a temporarily suspended manhole casting and expanded by a mechanism having numerous arms connected at a center point and extending outwardly to spaced and positioned... | 03/01/1994 |
| 5215673 | Apparatus for the production of a symmetrical oval concrete pipe An apparatus for the production of a symmetrical oval concrete pipe including an oval male joint member and an oval female joint member formed on opposite ends of an oval pipe body having a form including an outer jacket and an inner core disposed in spac... | 06/01/1993 |
| 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 |
| 4938909 | Flash-free molding of I.C. engine passages A method of making a molded plastic component of an internal combustion engine. The method is for making a fuel rail and includes constructing particular core pins of the mold with threaded connections that form seals between them when they are disposed i... | 07/03/1990 |
| 4733801 | Method of and means for manufacture of a dispenser for viscous or semi-viscous materials A method of and means for manufacturing an article, such as a toothpaste tube having a captive cap, by injection moulding. An elongated core (2) is projected into the hollow of a die (1) to engage an aligning surface (5) on the core (2) with a mating alig... | 03/29/1988 |
| 4717330 | Apparatus for making a structural component A structural component having a curved wall, such as an aircraft fuselage pipe, has a grid structure formed of box frames produced by winding tapes of fiber reinforced synthetic material, so-called prepregs, onto mold bodies. These mold bodies are then a... | 01/05/1988 |
| 4685650 | Apparatus for forming inverts and manhole assemblies Apparatus for forming inverts in a manhole base using a single pour or double pour technique. In the single pour technique, the invert is formed simultaneously with the formation of the manhole base using a mold member having a channel-shaped projection d... | 08/11/1987 |
| 4650150 | Mold apparatus for vertical elements of concrete A molding apparatus for molding in place walls of a structure on a poured concrete floor or other base is provided with a central support member to which are movably attached four flat wall molds and four corner molds which cooperate with adjacent like ap... | 03/17/1987 |
| 4565347 | Monolithic precast invert system Concentric inner and outer molds define the walls of the manhole base to be cast. The top of the inner mold is provided with a stationary invert forming section and at least one swingable invert forming section swingably mounted upon a centrally located p... | 01/21/1986 |
| 4213932 | Apparatus and method of molding a biconical socket An apparatus and method of molding a biconical socket (FIG. 1) of precise concentricity and length. The biconical socket is formed by a two piece mandrel assembly (20, 21), each mandrel member having a frustoconical end (22, 23). The frustoconical ends of... | 07/22/1980 |
| 4040597 | Core holding structure for molds A core holding structure for molds and method of making same. A hollow bushing is locked within a mold so positioned with respect to a cavity in the mold that a rod-like core may be mounted on the bushing to provide a bore for hollow members such as spout... | 08/09/1977 |
| 3990673 | Apparatus for casting Apparatus for casting concrete septic tanks, burial vaults and the like includes an inner form and an outer form. The inner form includes apparatus for positively locking the cover plate to the inner form as the walls thereof are expanded. The inner form,... | 11/09/1976 |
| 3965963 | Mold and process for casting high temperature alloys In the manufacture of hollow turbine blades or vanes especially those having a columnar crystalline growth in the alloy, the blade is cast in two opposed halves against a central mold element, the latter being rigid enough to avoid deformation during heat... | 06/29/1976 |
| 3951376 | Mold with tensioned cable adjusting means A forming device for prefabricating structures having a size-adjustable core surrounded by a shell structure displaceable with respect to the core. The shell structure is constructed of a plurality of frame members each independently adjustable with respe... | 04/20/1976 |
