| Patents for B28B 7 - Moulds; Cores; Mandrels (12,030) |
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| 09/18/1991 | CN1054558A Forming technology for multi-hole straight gas fireproof products |
| 09/11/1991 | EP0183782B1 Phenolic resin-polyisocyanate binder systems |
| 09/04/1991 | EP0309507B1 Mould for deep-drawing foils and for casting materials |
| 08/28/1991 | EP0443950A1 Moulding device of composite material for the hot-pressing of articles from refractory material |
| 08/27/1991 | US5043116 Process for producing one end-sealed ceramic double wall-structural tubes |
| 08/22/1991 | DE4005306A1 Casting for cell-type buildings such as garages - comprises floor, expandable inner part for wall construction, and movable walls for making building wall exteriors |
| 08/21/1991 | EP0442587A1 Moulding apparatus |
| 08/20/1991 | CA1287734C Biaxial concrete masonry casting method and apparatus |
| 08/14/1991 | CN1013486B Forming process for combined refractory products |
| 08/13/1991 | US5039296 Apparatus for producing pressings provided with channels from powdery moulding compound, especially ceramic molding compound(short title: honeycomb) |
| 08/08/1991 | DE4003598A1 Prodn. of open-cell ceramic foam |
| 08/07/1991 | EP0440323A2 Process for the production of a porous ceramic body having cavities or open channels |
| 08/07/1991 | EP0440322A2 Process and device for making a porous ceramic body |
| 08/07/1991 | EP0439454A1 Form clamp to join panels, in particular, cement casting forms. |
| 07/31/1991 | CN2081792U Dewatering and shaping unit for concrete member |
| 07/30/1991 | WO1991011653A1 A method and apparatus for coating the outer surface of an elongated body with a layer of concrete |
| 07/30/1991 | US5035847 Mold for slip casting |
| 07/30/1991 | US5035725 Silicon carbide matrix impregnated with molten silicon |
| 07/30/1991 | CA1286891C Adjustable mold for concrete median barrier |
| 07/25/1991 | WO1991010546A1 A mould for moulding of a thermosetting substance |
| 07/25/1991 | WO1991010545A1 Apparatus for molding under high pressure |
| 07/24/1991 | EP0437672A1 Method of manufacturing intermediate concrete products, formwork for manufacturing said products, and apparatus for carrying out said method |
| 07/23/1991 | CA1286469C Method for the manufacture of moulds |
| 07/18/1991 | DE4001038A1 Attachment of switch mounting panel to wall - involves wedging element fitted under heads of fixing screws |
| 07/17/1991 | CA2033235A1 Method and apparatus for injection molding ceramic valves |
| 07/17/1991 | CA2025840A1 Process of manufacturing intermediate concrete products, form for manufacturing said products, and apparatus for carrying out said process |
| 07/16/1991 | US5032328 Portland cement and water |
| 07/10/1991 | EP0436503A1 A method and device for discharging brick mouldings from moulding trays |
| 07/03/1991 | CN1052627A Manufacture method for concrete brick having decorative material |
| 07/02/1991 | US5028364 Process for forming concrete structures and stripping concrete forms |
| 06/26/1991 | EP0433591A2 Method and means for forming blocks from concrete mix at a high production rate and with high shape definition, and the product obtained |
| 06/26/1991 | CN1052486A Process for preparing material to repair green hygienic ceramic utensils |
| 06/20/1991 | DE3941229A1 Hot gas drying of slip cast body in mould - e.g. to obtain green body for mfg. optical fibres |
| 06/19/1991 | CN2079109U Mould for producing rilievo hollow brick |
| 06/13/1991 | WO1991008091A1 A method of mounting a mould system in a block stone moulding machine, and a correspondingly adapted moulding machine and mould system |
| 06/12/1991 | EP0431924A2 Three-dimensional printing techniques |
| 06/11/1991 | US5022920 Method and composition for investment casting of laminar ceramic shell molds |
| 06/11/1991 | CA1284718C Moulding of construction products |
| 06/05/1991 | EP0430723A2 A method for producing concrete products provided with inlaid patterns |
| 06/05/1991 | EP0429752A1 Form for patterned concrete |
| 06/05/1991 | EP0362345A4 Coloured stearates |
| 06/05/1991 | CN2078221U Mould for hollow plate and pipe materials cast with composite paste |
| 06/05/1991 | CN1012720B Ceramic members and a method and for producing them |
| 06/04/1991 | US5021213 Method of casting powder |
| 06/04/1991 | US5021205 Concrete manufacturing process |
| 05/29/1991 | DE4030626A1 Verfahren zur herstellung eines halbzeugs A method for fabricating a preform |
| 05/29/1991 | DE4004654C1 Formwork core for garage - has overlapping skins for roof and rear wall with staging |
| 05/28/1991 | US5019307 Method and apparatus for the manufacture of hollow ceramic beams using multiple molding mandrels |
| 05/28/1991 | CA2022547A1 Method for producing concrete products provided with inlaid patterns |
| 05/16/1991 | DE3937662A1 Concrete paving slab - has projections formed along edges which fit between projections on edges of adjacent slabs |
| 05/15/1991 | EP0427621A1 Plant for making cell-like elements for assembly side by side to form a building unit |
| 05/15/1991 | EP0427025A2 Shuttering for making concrete elements |
| 05/14/1991 | US5015450 Process for making calcium sulfate alpha-hemihydrate from calcium sulfate dihydrate |
| 05/14/1991 | US5015449 Process for making construction grade calcium sulfate alpha-hemihydrate from moist finely divided gypsum obtained from a power plant flue gas desulfurization |
| 05/14/1991 | US5014480 Plastic forms for poured concrete |
| 05/14/1991 | CA1284021C Molding device for modular concrete unit |
| 05/14/1991 | CA1284019C Casting frame structure of centrifugal casting machine |
| 05/08/1991 | DE3936527A1 Formsteinsatz und formstein zum belegen von bodenflaechen mit breiten fugen Set of shaped stones and stone shape to prove by bodenflaechen with wide joints |
| 05/08/1991 | CN1012583B Block building system and method for producing same |
| 05/08/1991 | CA2005526A1 Method for casting friable asbestos-containing material into a non-friable mass |
| 05/07/1991 | US5013507 Memory alloys |
| 05/03/1991 | WO1991006706A1 Set of shaped bricks and shaped brick with broad joints for paving |
| 05/02/1991 | EP0425377A1 Process and apparatus for moulding building elements |
| 05/02/1991 | DE3935601A1 Fibre bodies prodn. - by pressing homogeneously dispersed fibre in aq. suspension without presence of binder |
| 04/18/1991 | WO1991004779A1 Process for the production of a semi-finished article, and uses of the article thus produced |
| 04/17/1991 | EP0423105A1 Prefabricated structural element to be used as a cellar |
| 04/11/1991 | DE3933588A1 Concrete shuttering and formwork - for prodn. of reinforced concrete rooms with variable dimensions and uses vertically and horizontally adjustable internal frame system |
| 04/02/1991 | US5004627 Polyimides for mold release |
| 03/27/1991 | EP0165952B1 Shaping of ceramic materials |
| 03/26/1991 | US5002817 A negative impression of a three dimensional pattern in a mold to form concrete walls |
| 03/20/1991 | CN2073444U Small concrete hollow building blocks |
| 03/19/1991 | US5000892 Self-supporting ceramic composites, patterns, oxidation of metal, packing |
| 03/13/1991 | EP0416273A1 Process for the continuous production of a double-sided roughened thin ceramic tape with predetermined surface texture |
| 03/12/1991 | US4998872 Dental centrifugal casting apparatus |
| 03/12/1991 | CA2024059A1 Composition and method for hardening an aqueous alkali metal silicate solution |
| 03/07/1991 | DE3929276A1 Formwork and mould-work procedure in mfr. of precast concrete units - uses clay for intricate features and inserts and flow chart programme included |
| 03/06/1991 | EP0415435A2 Apparatus for making simulated stone concrete blocks |
| 03/06/1991 | EP0108104B1 Arrangement in a tiltable form for casting |
| 03/05/1991 | WO1991003360A1 Method of manufacturing glass reinforced concrete building products |
| 03/05/1991 | CA2065238A1 Method of manufacturing glass reinforced concrete building products |
| 02/26/1991 | US4996176 Ceramic-surfaced metal substrate, filler embedded by oxidation product of parent metal |
| 02/26/1991 | US4996024 Method for casting powder |
| 02/26/1991 | US4996013 Method for rapid molding of elongate concrete articles |
| 02/21/1991 | DE3926854A1 Press for ceramic products - has system to incline floor of mould to produce articles of varying thickness |
| 02/20/1991 | CN2071573U Self-lock positioning mould for hollow block (bricks) |
| 02/19/1991 | US4993208 Mold for producing tile-shaped floor elements for forming a double floor construction and a corresponding tile-shaped floor element |
| 02/13/1991 | EP0412931A1 Process for production of a porous ceramic body |
| 02/13/1991 | EP0412930A1 Process for production of a porous ceramic body |
| 02/13/1991 | EP0412533A2 Slip casting device |
| 02/13/1991 | CN2071121U Electric heating mould for brick machine |
| 02/11/1991 | CA2024514A1 "perfection vi" recuperator |
| 02/09/1991 | CA2022768A1 Process for manufacturing a ceramic foam body |
| 02/09/1991 | CA2022767A1 Process for manufacturing a ceramic foam body |
| 02/06/1991 | EP0227753B1 Rapid moulding of hollow elongate concrete articles |
| 02/05/1991 | US4990292 Method for producing carbon fiber-reinforced gypsum models and forming molds |
| 01/24/1991 | WO1991000793A1 A device for sanding moulding trays |
| 01/23/1991 | CN2069778U Reinforced concrete bathtub mould |
| 01/23/1991 | CN1048673A Porous gypsum mould and method for manufacturing said mould |
| 01/16/1991 | EP0408447A1 Precast curb system |
| 01/16/1991 | EP0408151A1 Device for sanding moulding trays |