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| Number | Title | Issue Date |
| 6672857 | Device for introducing a coating into pipes Device for introducing a coating into pipes and pipe bends and, more generally, into rotationally symmetrical bodies open at only at least one end, with an elastic, elongate, inflatable core (12), the so-called "variocore".... | 01/06/2004 |
| 6626414 | Concrete casting sliding corner system A concrete casting sliding corner system includes a pallet for defining the cross-sectional shape and thickness of the sidewalls and an inside core mold disposed interiorly of the pallet and an outside mold jacket disposed outwardly of the pallet. The mol... | 09/30/2003 |
| 6279867 | Multi-part form of a mold for forming a containment member for molten metal The present invention is directed to a multi-part form, for use in forming an inner wall of a mold. The multi-part form includes a consumable exterior wall for contacting a casting compound. A collapsible intermediate wall contacts an inner side of the ex... | 08/28/2001 |
| 6105924 | Wedge apparatus and mold A wedge apparatus for use with molds and a mold utilizing at least one wedge apparatus. The wedge apparatus includes a pair of attachment portions, each having an attachment surface and a wedge surface, a wedge portion, and a shaft. The wedge portion is s... | 08/22/2000 |
| 5755982 | Concrete casting system A mold system for casting five-sided, monolithic, seamless concrete products comprises an outside jacket, an inside mold core complete with base, and a movable pallet to aid stripping. The outside jacket preferably includes two L-shaped panel members arra... | 05/26/1998 |
| 5720993 | Collapsible core for concrete pipe making apparatus A collapsible core for concrete pipe making machines that are used in the dry cast process when lined pipe are to be produced. The collapsible core of the invention has a moveable front panel joined to two moveable side panels, all of the panels being con... | 02/24/1998 |
| 5714080 | Self-actuating molds for vertically casting concrete pipe A gated mold for casting concrete pipe requires no wedges or bolts for securement. A core mold may be contracted by lifting at an actuation point, and expanded by resting on a base ring. An external mold may be expanded by lifting at an actuation point, a... | 02/03/1998 |
| 5700415 | Method of molding synthetic resin and apparatus for use therein A molded article having a large undercut part is efficiently produced by a method of molding a synthetic resin with the use of an apparatus comprising an outer mold (S) and an inner mold (N) arranged so as to form a cavity (C) inside the outer mold (S), s... | 12/23/1997 |
| 5665139 | Mold for production of a quartz glass component The mold wall forms the boundary of a cavity provided with a filling opening and is divided vertically into several segments, which are connected to each other in such a way that they can separate under the action of a force acting outward from the cavity... | 09/09/1997 |
| 5524861 | Reusable mold for constructing housing units and method of use thereof A system of mounting a plurality of wall panels to a soffit layout which defines the building module's layout, utilizes exterior and interior wall panels which are hingedly mounted at the bottom and are actively displaced to permit the casting to be remov... | 06/11/1996 |
| 5490367 | Apparatus for supporting and moving vertically an erected form assembly An apparatus is used to support and move vertically an erected form assembly during the construction of a building with a plurality of stories. The stories include a lower story and an upper story. Each of the lower and upper stories is formed previously ... | 02/13/1996 |
| 5417519 | Formwork apparatus The formwork assembly (10) is used to cast tubular or part-tubular structures, one particular application being in the lining of mine ore passes with a concrete lining (54). The assembly includes an internal framework (12, 14, 32; 100, 102, 104) and exter... | 05/23/1995 |
| 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 |
| 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 |
| 5230904 | Apparatus for fully supporting appliance cabinet interior Disclosed is a collapsible plug which is insertable into the interior section of an appliance cabinet and expandable therein to simultaneously extend the plurality of panels to provide lateral shoring support to each of the interior surfaces of the cabine... | 07/27/1993 |
| 5205943 | Apparatus for manufacture of precast concrete building units A U-shaped, half-room precast concrete building unit is molded in an open box-like framework having four L-shaped corner assemblies, facing pairs of horizontal legs of which are respectively joined by laterally-extending telescoping spacers, and facing pa... | 04/27/1993 |
| 5169652 | Molding machine A molding machine for casting a product is disclosed in a preferred embodiment of the invention. The molding machine includes a stationary support system and a rotatable apparatus, an opening and a horizontal axis of rotation parallel to the opening. Rota... | 12/08/1992 |
| 5156755 | Adjustable apparatus for forming voids in concrete An apparatus for forming voids in concrete including baseplates secured to a wood supporting deck or form for a concrete floor by a plurality of short wood screws. An adjustable sleeve assembly is attached to each baseplate and is adjustable to a height g... | 10/20/1992 |
| 5139404 | Apparatus for making lined pipe An apparatus for making concrete pipe having vinyl liners. An expandable core is used to hold a tubular vinyl liner. The core has over-center latches which lock the core in an expanded position to hold the liner against the outside surface of the core. Th... | 08/18/1992 |
| 5116218 | Segmented hot molding apparatus Molding apparatus, for example for molding components of polymerized resin without drawing, comprises a mold defined by a mold wall having a first thermal expansion coefficient, and a die including a die wall having a second thermal expansion coefficient ... | 05/26/1992 |
| 4996013 | Method for rapid molding of elongate concrete articles An inner mold construction and an outer mold construction are provided to define a mold cavity or shape into which wet or uncured concrete is introduced. The method includes the sequential steps of compressing the concrete by movement of the inner mold re... | 02/26/1991 |
| 4956142 | Apparatus and method for molding three dimensional articles Apparatus and method for forming a three dimensional injection molded article having a pair of passageways extending therethrough and with a locking indentation in each passageway using first and second mold parts each having open ended cavities having an... | 09/11/1990 |
| 4915609 | Sintering device for blanks of foamable plastics with undercuts A sintering device includes separable mould walls which together define a mould cavity and a mould core which is positioned within the cavity to define an undercut mould surface. The core includes a hollow frusto-pyramidal central support formed with guid... | 04/10/1990 |
| 4890999 | Molding machine A molding machine for casting a concrete product includes a stationary support system, a rotatable apparatus and a pair of bearings supporting the rotatable apparatus on the stationary support system. The rotatable apparatus rotates 180 degrees between an... | 01/02/1990 |
| 4880048 | Apparatus for the moulding of a cylinder block or of a corresponding foundry pattern Cylinder block molding apparatus includes two series of parallel and alternate molding plates for partitions. The plates extend in planes perpendicular to the axis of an engine shaft. Each series of molding plates is mounted, respectively, on a support ca... | 11/14/1989 |
| 4832307 | Injection mold An injection mold having a pair of stationary and movable molding plates, a plurality of sidewalls moved by one or more hydraulic cylinder assemblies disposed between the stationary and movable molding plates through inclined guide pins or guide blocks, a... | 05/23/1989 |
| 4824350 | Sliding shuttering system The invention relates to a sliding shuttering system for producing concrete structure walls, particularly for conical and/or sloping reinforced concrete structures with annularly closed, varying cross-sections. Especially in the case of sloping structures... | 04/25/1989 |
| 4804320 | Sliding shuttering device The invention relates to a sliding process for producing concrete structure walls and a sliding shuttering means for erecting or installing monolithic block brackets, praticularly in the case of annular structures. In order to permit a continuous installa... | 02/14/1989 |
| 4771981 | Collapsible mould core The invention relates to a collapsible core for a mould. The core comprises three relatively movable assemblies. The first assembly carries a cone, the second assembly carries an inner set of segments which form part of the core surface and engage the con... | 09/20/1988 |
| 4731014 | Rear opening mold A mold, typically an injection mold, comprises a cavity member and a core member relatively movable between open and closed positions to define a first parting line and a molding chamber between the core and cavity members in the closed position. A sprue ... | 03/15/1988 |
| 4717113 | Segmented injection mold system An injection molding system is provided with a plurality of wall segments which are displaceable substantially radially for forming a substantially continuous wall which forms an internal wall of a hollow region which is intended to be filled with molten ... | 01/05/1988 |
| 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 |
| 4708632 | Injection moulding mould A mould which is used for the production by injection moulding of fittings which have an inner annular groove includes a divisible outer mould, a mould core and a mould ring. The mould core has a plurality of segments which can be folded together. In orde... | 11/24/1987 |
| 4705258 | Sheathing for pouring a container fabricated from concrete An improved sheathing for use as a covering on a polygonal container having a plurality of adjustable support members for supporting the sheathing thereon. The sheathing comprises at least two adjacent pivotally connected panels having a vertical joint th... | 11/10/1987 |
| 4679762 | Form set-up An apparatus for forming a multisided upright concrete wall with inner and outer form set-ups including an arrangement for stripping said inner form set-up which has a multisided form wall from the cast concrete entirely which comprises at least one wedge... | 07/14/1987 |
| 4667923 | Molding device for modular concrete unit A molding device includes a multi-sided contractible inner form and outer forms that can be connected detachably to the inner form. The inner form has, at each side, a wedge-shaped spacer formwork board, on which are mounted a power means and a linkage me... | 05/26/1987 |
| 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 |
| 4627810 | Collapsible core An injection mold utilizes a collapsible core portion which includes a core portion and a mold cavity portion. A core base is provided as part of the core portion. A first mold ring is positioned about the core base and longitudinally movable to define a ... | 12/09/1986 |
| 4618121 | Mold for forming plastic cap with perforation about the periphery of the skirt A mold for forming a plastic cap and removing a cap from such a mold. The mold comprises female and male members which, together, form a mold cavity in which the cap is formed. The female member includes an upper assembly and a plurality of cams. The cams... | 10/21/1986 |
