| Patents for B22C 7 - Patterns; Manufacture thereof so far as not provided for in other classes (3,230) |
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| 10/24/1991 | DE4113106A1 Foam patterns used in casting of IC engine blocks - comprises crankcase and cylinder portions, and includes transmission channel |
| 10/24/1991 | CA2036650A1 Lost foam pattern assembly apparatus |
| 10/24/1991 | CA2036613A1 Internal combustion engine and method for making the same |
| 10/15/1991 | US5056582 Core box shuttle system |
| 10/15/1991 | US5056580 Method for producing foundry products with nozzle openings |
| 10/08/1991 | US5054537 Lost foam pattern assembly for V-block engine |
| 10/01/1991 | US5053437 Polymethacrylate blown with dimethylbutane; defect-free |
| 09/24/1991 | CA1289421C Manufacturing method of metal moulds, having a high fusion temperature, through sputtering of said metal on a filled elastomeric silicone form |
| 09/03/1991 | US5044419 Hollow post cylindrical sprue casting method |
| 08/29/1991 | DE4006031A1 Two-part core box - has facing hollow moulding zones to use all surfaces of the core box |
| 08/27/1991 | US5042562 Wear resistant mold part for the manufacture of molds for casting purposes |
| 08/27/1991 | US5042560 Using lost positive pattern comprising open-pored substrate |
| 08/20/1991 | US5041465 Using polystyrene containing tert-butyl cumyl peroxide |
| 08/13/1991 | US5038847 Evaporable foam pattern for use in casting a crankshaft |
| 07/30/1991 | US5035276 Evaporable foam pattern assembly for casting a housing for a rotary engine |
| 07/30/1991 | US5035275 Used In Evaporative Casting Process |
| 07/16/1991 | US5031685 Internal combustion engine and method for making the same |
| 06/13/1991 | DE4020126C1 Mfg. cast object used for e.g. jewellery or dental purposes - from precious metal alloy by lost wax process using pattern contg. uniformly dispersed grain refiner in wax and/or plastic |
| 06/12/1991 | EP0430992A1 Photocurable compositions and method of investment casting |
| 06/12/1991 | CN1052068A Figure moulding and replication technology |
| 05/28/1991 | US5018568 Lost foam engine block pattern |
| 05/24/1991 | CA2003825A1 Reinforced ceramic passageway forming member |
| 05/14/1991 | CA2025429A1 Mechanism and method for molding a hollow part |
| 05/08/1991 | EP0426372A1 Controlling pyrolysis rate of plastic foam molding |
| 04/24/1991 | EP0423390A1 Process for fabricating moulds, shell-moulds, foundry patterns, core boxes etc., having a structured surface |
| 04/23/1991 | CA1283263C Method of fusion bonding low density thermoplastic bodies |
| 04/17/1991 | EP0423024A1 Method for fabricating moulds |
| 04/16/1991 | US5008303 Molding composition for making casting patterns |
| 04/12/1991 | CA2027287A1 Mold forming method |
| 04/10/1991 | EP0421039A1 Lost foam pressure casting process for metal pieces |
| 04/02/1991 | US5004037 Long span sprue tube for investment casting |
| 03/28/1991 | DE3931276A1 Modelling material for precision casting in dentistry - has powdered crude mixt. contg. quartz, alumina, cristobalite, molten material magnesia, tri:calcium phosphate, bentonite and boric acid |
| 03/20/1991 | CN1049991A Process for lost-foam casting, under pressure, of metal articles |
| 03/05/1991 | US4997025 Lining plate for the molding space of flask-less molding machines |
| 02/27/1991 | EP0414620A1 Method for making magnesium alloys by spray coating |
| 02/25/1991 | CA2023900A1 Preparation of magnesium alloys by a spray deposition process |
| 02/19/1991 | US4993472 Method of making fingerprint jewelry |
| 02/12/1991 | CA1279975C Lost foam cluster design |
| 01/29/1991 | US4987945 Evaporable foam pattern assembly for casting a centrifugal pump housing |
| 01/29/1991 | CA1279454C Method of dimensionally stabilizing polystyrene patterns and the like |
| 01/22/1991 | US4986942 Method for forming ported cylinder sleeve liner foam pattern |
| 01/10/1991 | DE3920320A1 Copying of half=sided three=dimensional structures - an impression created by pushing rod ends onto model is covered in film and a castable material poured onto it |
| 01/08/1991 | US4983640 Methods for preparing a formed cellular plastic material pattern employed in metal casting |
| 01/02/1991 | EP0405131A1 Process for preparing individual moulds for castings of highly reactive metals or metal alloys |
| 12/18/1990 | US4977945 Full mold comprised of a plastic foam material |
| 12/04/1990 | US4975041 Die assembly for die casting a propeller structure |
| 11/28/1990 | EP0399163A1 Process for fabrication of open-cell metallic structures |
| 10/23/1990 | US4964454 Evaporable foam pattern for casting an air induction manifold |
| 10/16/1990 | US4963213 Method of and device for gluing objects together using a porous sheet applicator |
| 10/11/1990 | DE3931595C1 Pattern for mfg. consumable mould - has recess at position for attaching feeder with restricting core between feed and pattern |
| 08/30/1990 | DE4006159A1 Verfahren und schaumstoff-formmodell zum formgiessen eines maschinenblocks Procedures and foam-form model for form pour a machine blocks |
| 08/28/1990 | US4952282 Pattern plate for making moulds intended for the production by sand casting of window seals or similar articles having an undercut bead |
| 08/28/1990 | US4951733 Evaporable foam pattern for casting an engine block of a two-cycle engine |
| 08/21/1990 | CA1272865A1 Method of joining foam pattern members to form an assembly for use in evaporative casting techniques |
| 08/07/1990 | US4946884 Blends of poly(propylene carbonate) and poly(methyl methacrylate) and their use in decomposition molding |
| 08/01/1990 | EP0380116A2 Moulding composition for manufacturing foundry models |
| 07/31/1990 | CA1272062A1 Multilevel imaging of photopolymer relief layer for the preparation of casting mold |
| 07/25/1990 | EP0378565A1 New refractory compositions and evaporative pattern casting process using same |
| 07/24/1990 | US4942915 Process for production of a hollow casting |
| 07/11/1990 | CN1008700B Core pinning machine |
| 07/11/1990 | CN1008699B Metal passage used in lost wax casting |
| 07/10/1990 | US4940074 Core pinning machine |
| 07/03/1990 | US4939187 Pattern material for making foundry patterns for use in investment casting process |
| 06/05/1990 | US4930461 One-piece lost foam pattern for an intake manifold |
| 06/05/1990 | CA1269818A1 Method for forming castings having inserts |
| 05/29/1990 | US4929645 Expandable and expanded plastic materials and methods for casting metal castings employing such expanded cellular plastic materials |
| 05/09/1990 | CN1041896A Mold body modelling method |
| 05/03/1990 | WO1990004472A1 Process for manufacturing castings with remelted, at least approximately gastight high-temperature insulation |
| 05/03/1990 | DE3836190A1 Verfahren zur herstellung von gussteilen mit umgossener, wenigstens annaehernd gasdichter hochtemperaturdaemmung Process for the manufacture of molded parts with overmolded, at least approximately gastight hochtemperaturdaemmung |
| 05/02/1990 | CN1041716A Precision casting technology for die impression |
| 04/26/1990 | DE3836009A1 Method for producing a pattern for full mould casting |
| 04/24/1990 | CA2001396A1 Process for manufacturing cast components with integrally cast, at least approximately gas-tight high-temperature insulation |
| 04/03/1990 | CA1267266A1 Casting of metal articles |
| 03/28/1990 | EP0359786A1 Process for making moulded parts. |
| 03/14/1990 | EP0357716A1 Preforms for manufacturing casting moulds using a moulding material, in particular core boxes |
| 03/13/1990 | US4907638 Evaporable foam pattern for use in casting a cylinder head |
| 02/22/1990 | WO1990001727A1 Photocurable compositions and method of investment casting |
| 02/06/1990 | US4898635 Method and apparatus for bonding parts of disappearing model used for casting |
| 01/31/1990 | EP0353119A1 Pattern plate for realization of moulds destinate for fabrication of glass jointings or similar pieces with foundry sand by presence of a pad within a counter pattern taper |
| 01/25/1990 | DE3824574A1 Method for casting precision castings |
| 01/11/1990 | DE3822601A1 Foam for use in the process for producing metal castings by means of cavityless casting |
| 12/19/1989 | US4888082 Apparatus for adhesive transfer |
| 12/05/1989 | US4884622 Mould for moulding of a foundry pattern and process for putting it into practice |
| 12/05/1989 | CA1263515A1 Method for improving strength of gasifiable patterns |
| 11/28/1989 | US4883110 Evaporable foam pattern for use in a casting process and having load transfer walls |
| 11/23/1989 | EP0342209A1 Heteroporous form tool for manufacturing casting moulds from moulding sand and process for its manufacture |
| 11/15/1989 | EP0341815A2 Method of counter-gravity casting |
| 11/14/1989 | US4880047 Lost foam transfer passage cavity construction |
| 11/02/1989 | DE3813755A1 Pattern arrangement |
| 10/31/1989 | US4877078 Organometallic compound added to reduce formation of solid carbon |
| 10/25/1989 | EP0338601A1 Molding part for fabricating foundry bodies made from mold material, especially core box |
| 10/17/1989 | US4874030 Blends of poly(propylene carbonate) and poly(methyl methacrylate) and their use in decomposition molding |
| 10/10/1989 | US4872637 Die member for forming a lost foam pattern |
| 10/03/1989 | US4871009 Anti-shift assembly for mold matchboards |
| 09/21/1989 | WO1989008513A1 Preforms for manufacturing casting moulds using a moulding material, in particular core boxes |
| 08/30/1989 | EP0330365A2 Pre-expanded plastic beads for controlling thermal shrinkage and pyrolytic rate of plastic foam |
| 08/29/1989 | US4860815 Method for forming recyclable pour tool |
| 08/23/1989 | CN1034874A Lost pattern for production of full mold made of plastic foam material, particularly expanded polystyrene |
| 08/10/1989 | WO1989007024A1 Process for making moulded parts |
| 08/08/1989 | US4854367 Refractory compositions and evaporative pattern casting process using same |