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| Number | Title | Issue Date |
| 6015005 | Respective inflatable arbors for making backdraft cavity in sand core and for forming part of core lift device insertable in cavity Tooling includes an inflatable arbor for forming a backdraft cavity in a foundry sand core. A core handling device includes an inflatable arbor, similar to the one used for forming the backdraft cavity in the sand core, whereby the lifting device arbor, w... | 01/18/2000 |
| 6003588 | Process for introducing cores into a casting mold A process for inserting cores into a casting mold includes inserting a plurality of individual cores into a template; forming a core group by joining together the plurality of individual cores within the template using a bracing and securing device which ... | 12/21/1999 |
| 5787957 | Apparatus and methods for injecting and gassing of sand The injection tube for injecting and gassing of foundry sand in cavities in a core box has a first passage for passing sand and a second passage for passing hardening fluid. Sand may be injected simultaneously to the introduction of hardening fluid into t... | 08/04/1998 |
| 5715885 | Apparatus and method for cleaning core box vents The core box includes a cavity therein, a vent in fluid communication with the cavity, ejector members, and apparatus coupled to the ejector members for passing a fluid through the vent into the cavity.... | 02/10/1998 |
| 5711361 | Method for producing ready-to-use casting shells or core assemblies Ready-to-pour shells or core assemblies produced utilizing at least two in-line core shooting machines (1), each core shooting machine (1) having two, at least slightly differing sets of tools (4), each set comprising an upper tool (2) and a lower tool (3... | 01/27/1998 |
| 5701946 | Apparatus for shooting foundry cores or molds An apparatus for shooting foundry cores or molds with a shooting arrangement (1), a set of tools comprising an upper tool (6) and a lower tool (7), and a tool change mechanism (8) rotatable about a vertical axis (10) and comprising two tool change frames ... | 12/30/1997 |
| 5535809 | Method and apparatus for packing a granular material for foundry use Core sand material is received in an enclosed chamber and is forced into the cavity of a mold by compressing the air above the sand material with essentially no mixing of the air and sand material. The air is compressed by a piston which forces a pressure... | 07/16/1996 |
| 5520240 | Device for supporting lower half-molds in sand core molding machines The device is constituted by a prism-shaped structure which has flat faces, is internally hollow and is rotatably mounted, with preset stops, about a horizontal axis which lies at right angles to the direction of movement of the casting head. A core box i... | 05/28/1996 |
| 5318096 | Removable plate assembly for core machine head A blow head or gassing head of an automatic core machine, which produces sand casting cores in a core box is formed of a downwardly opening box-like frame having a bottom closure plate. The heads may be alternatively used to respectively deposit a sand an... | 06/07/1994 |
| 5269363 | Retention mechanism for an injection head A retention mechanism for an injection head wherein the injection head includes a feed tube capable of use with an injection bell and an injection plate wherein the bell and plate carry clamping apparatus actuable to secure the plate to the bell includes ... | 12/14/1993 |
| 5242008 | Method and apparatus for producing cores for foundry purposes For a production of foundry moulds, dies are stepwise, cyclically conveyed by a continuous conveyor and, synchronously with the dies, shot hoods are conveyed into a shot station which is common to both the dies and shot hoods, with the shot hoods being di... | 09/07/1993 |
| 5230378 | Method and apparatus for manufacturing one-piece water jacket cores A one-piece water jacket core for an internal combustion engine is formed by providing a first core box portion and a second core box portion adapted for assembly and formation of the one-piece water jacket core. The first core box portion includes a firs... | 07/27/1993 |
| 5154229 | Core box handling apparatus for a core molding A handling apparatus for a core molding machine is capable of moving a core box portion between a molding position and an eject position using only a single actuator. A carriage carries a platen that supports a core box portion wherein the platen is rotat... | 10/13/1992 |
| 5137091 | Process of producing molded body from green molding sand Green sand is packed as molding sand into a compression mold and the green sand is precompacted in the mold using a hydraulic press and thereafter is finally compacted after the precompaction wherein prior to precompaction recesses formed in the molding t... | 08/11/1992 |
| 5095967 | Modular core making machine An improved core making machine having a frame and capable of producing cores at a molding position within the frame is easily configured to include one or more horizontal core box handling components and/or one or more vertical core box handling componen... | 03/17/1992 |
| 5078201 | Casting core fabricating apparatus The apparatus includes a casting core forming die, a mold sand feeder with an opening, a mold sand tank, a suspension device for lifting and for lowering the mold sand tank, supporter and mover for the mold sand tank between a first position where it can ... | 01/07/1992 |
| 5072775 | Core blowing machine A foundry core blowing machine includes an upright frame with a blow head for a sand-resin mix fixed at the top. Sectionalized vertically movable rods extend through bushings at the top and bottom of the frame. Fixed to the rods are a cope support and a s... | 12/17/1991 |
| 5056582 | Core box shuttle system A core box shuttle system includes a shuttle car movable along a path, a movable shaft, a guiding surface carried by the shuttle car having a longitudinal extent transverse to the path and a slip-type connection between the movable shaft and the guiding s... | 10/15/1991 |
| 4977944 | Core blowing machine In a core blowing machine, a core collecting device including a plurality of core collecting trays is provided, which is positioned at a core removal area of the machine and comprises a support bed on which a first set of guides is provided for guiding a ... | 12/18/1990 |
| 4942916 | Core blowing machine A foundry core blowing machine includes an upright frame with a blow head for a sand-resin mix fixed at the top. Sectionalized vertically movable rods extend through bushings at the top and bottom of the frame. Fixed to the rods are a cope support and a s... | 07/24/1990 |
| 4844141 | Core defining apparatus and method A core machine is arranged to automatically refine the shape of a sand core upon removal of the core from the machine. The core machine uses a core box to form a core. After formation of the core and separation of the core box halves a shaping member is m... | 07/04/1989 |
| 4832108 | Method and apparatus for handling tooling within a foundry machine A foundry machine for forming molds or cores from a molding material such as sand provides completely automated loading and unloading of tooling elements (24). The tooling elements (24) comprising a sand magazine (36), blow plate (34), combined gassing ma... | 05/23/1989 |
| 4809763 | Method of and apparatus for producing molds and mold sections and cores In a method of producing cores for foundry purposes, with the cores being composed of at least two core sections and being firmly joined with one another, the individual core sections are molded separately in a core mold composed of at least two mold sect... | 03/07/1989 |
| 4781236 | Method of and device for producing mold core A method of producing a mold core from green sand, wherein green sand is blown into a mold cavity which is sized to be greater than the size of the mold core to be obtained, so that a preformed mold body is prepared. The preformed mold body is then compac... | 11/01/1988 |
| 4744404 | Foundry sand blowing apparatus A foundry sand blowing apparatus for blowing foundry sand into a mold in forming a die such as a core for use in shell mold process or the like comprises a foundry sand storage tank provided with an eject pin. The eject pin is movable between an ejecting ... | 05/17/1988 |
| 4694883 | Hollow core molding apparatus An apparatus for producing a hollow foundry core, whereby core halves are first formed and fully hardened on an inner hollow-mold part and an outer mold-box half. These core halves are then sprayed with an adhesive and joined to form a finished foundry co... | 09/22/1987 |
| 4472092 | Fabrication of metal shell golf club heads The method of fabricating a metal shell golf club head includes forming a core to the form of the inside surface of the shell; forming a plug integral with the core to project outwardly therefrom, the plug formed to outline peripheral shape conforming to ... | 09/18/1984 |
| 4452295 | Apparatus for production of cores from fluidized sands in hot boxes An apparatus for the production of cores from fluidized sands in hot boxes comprises individual mechanisms for joining and disjoining top and bottom sections of core boxes, which are placed beyond the confines of the latter. The joining mechanism incorpor... | 06/05/1984 |
| 4445564 | Machine for making mould cores from flowable core sand mixtures in hot multiple core boxes A machine for making mould cores from flowable sand mixtures in hot multi core boxes including a supporting frame carrying a conveyor whereon core boxes are placed, each of the boxes having a top and a bottom piece and mechanically interlinked main and a... | 05/01/1984 |
| 4378835 | Foundry core or mold making machine A foundry core or mold machine utilizes a horizontally extending frame pivoted at one end which fixedly supports one box half or cope and movably supports the other box half or drag. A power actuator pivots the frame to clamp the box halves closed against... | 04/05/1983 |
| 4308909 | Apparatus for manufacturing foundry cores A feature of the present invention is that an apparatus comprises an actuator of mechanisms for pressing and moving a batching chamber with a double-action cylinder whose internal ram is connected rigidly to a pressing plunger, and an external ram, to the... | 01/05/1982 |
| 4278123 | Simplified foundry core making machine and method A foundry core making machine is disclosed which produces large or fragile cores. The core is initially made in two parts, which are later adhered together by movement between first and second stations. The separate core halves are made in third and fourt... | 07/14/1981 |
| 4241779 | Apparatus for manufacturing foundry cores A feature of the present invention is that an apparatus for manufacturing foundry cores is provided with a device for fastening together halves of core boxes, located before a heating chamber, and with a device for unfastening the halves of the core boxes... | 12/30/1980 |
| 4196768 | Casting mold manufacturing process and apparatus therefor A casting mold manufacturing process and apparatus, which sand of the mold contains water-soluble paste of binder. The sand is previously heated in a sand storage tank by micro-wave heating or high frequency. The sand temperature and humidity, and volume ... | 04/08/1980 |
| 4184533 | Machine for shaping sand into cores or molds A machine for making a sand part for a metal casting wherein at least three frames, each equipped with means for shaping a sand part, are positioned at spaced apart points on an orbit, and indexed through three stations in the orbit wherein the shaping me... | 01/22/1980 |
| 4100961 | Foundry molding machine A foundry molding machine is disclosed wherein a core or mold is molded from moldable material such as sand in first and second mold boxes having a cavity. The cavity is filled with the sand and is then cured to form the mold. The first and second mold bo... | 07/18/1978 |
| 4083396 | Rotary type core-making machine Disclosed is a rotary-type continuous motion core making machine capable of carrying a number of core mold boxes, each supported on a carrier adapted to move up and down, a sand distributing system adapted to inject a foundry sand mix into each of the cor... | 04/11/1978 |
| 4082134 | Combined sand core machine A machine is disclosed for producing rigid sand cores from a molding mixture of a refractory granular material such as sand and a hardenable binder. These rigid sand cores then are used in foundries for metal casting. The machine of the present invention ... | 04/04/1978 |
| 4079774 | System for making sand molds each having associated therewith a core member A system for making sand molds each having associated therewith a core member composed of a core element or a network of core elements is disclosed. The system includes a machine for making and depositing onto a conveyor, mold sections having joint faces ... | 03/21/1978 |
| 3994333 | Core blowing machine The two halves of the core box in a core blowing machine are mounted on a carrier which may be turned 180° between a blowing position in which sand is blown into the closed core box and a discharging position in which the core box halves are separated in... | 11/30/1976 |
