Patents for B28B 7 - Moulds; Cores; Mandrels (12,030)
01/1991
01/16/1991EP0408150A1 A device for working a supply of clay to mouldings adapted for firing hand mould bricks
01/15/1991US4984468 Pressure sensor and method for manufacturing it
01/10/1991DE3920320A1 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
01/10/1991DE3920095A1 Concrete shuttering for column feet and anchorage holes - made of specified plastic e.g. polyamide material for male and female ribs
01/09/1991CN2068901U Stove body moudle
01/08/1991CA1278671C Apparatus and method for making pre-cast concrete products
01/01/1991US4981740 Acid resistant concrete articles, especially sulfur concrete pipes, and a method of manufacturing said articles
01/01/1991US4981428 Apparatus for molding slotted concrete floor sections
12/1990
12/27/1990EP0404159A1 Method of casting powder
12/27/1990EP0403979A2 Inorganic cured shape and method of producing the same
12/26/1990CN1048001A Method for producing concrete shaped article surface and shaped decoration
12/13/1990WO1990015195A1 Moulded (concrete) block for supporting walls, mould for its production, and supporting wall
12/13/1990DE3918271A1 Mfg. and/or treating concrete block
12/11/1990US4976903 Shaping molds and shaping of ceramic bodies by using such shaping molds
12/06/1990DE3917500A1 (beton-) formstein fuer stuetzmauern, form fuer die herstellung sowie stuetzmauer (Concrete) shaped stone for retaining walls, retaining wall and form for the production
12/05/1990EP0401051A2 Concrete non-cure coating material, and concrete products with surface pattern or decoration using said material and production process therefor
12/05/1990EP0400704A2 Method for forming uniformly compacted ceramic tiles and means for its implementation
12/05/1990CN1047473A Reinforced concrete bathtub module and making method
12/04/1990US4975225 Manufacture of monolithic, stiff, lightweight ceramic articles
12/01/1990CA2017938A1 Concrete non-cure coating material, as well as concrete products or concrete structural products with surface pattern or decoration using said material and production process therefore
11/1990
11/27/1990US4972579 Method of producing a ceramic pressure sensor
11/22/1990EP0397893A1 Shuttering for concrete elements with various dimensions
11/20/1990US4971475 Precast curb system
11/15/1990WO1990013717A1 A method of manufacturing building elements, building element and mold herefor
11/13/1990US4969626 Adjustable form for casting concrete culverts
11/07/1990EP0396302A1 Apparatus for use in moulding
11/05/1990CA2015617A1 Apparatus for use in moulding
10/1990
10/31/1990EP0394632A1 Pressure sensor and method of fabricating the same
10/24/1990EP0393767A2 Method and apparatus for forming preformed material
10/24/1990CN2064299U Cement window die set with mobile cover and fixed mould core
10/24/1990CN2064298U Brick die set
10/24/1990CN1046306A Acid resistant concrete articles especially sulphur concrete pipes and a method of manufacturing them
10/23/1990US4965107 One end-sealed ceramic double wall-structural tubes
10/23/1990CA1275354C Access floor panel
10/18/1990DE3912408A1 Shuttering for concrete slabs - made of specified fibre reinforced plastic material
10/18/1990DE3911958A1 Press sheet - for press board mfr. coated bilaterally with specified plastic
10/16/1990US4963305 Insulated face brick
10/16/1990US4963082 Apparatus for entombment of tanks in concrete
10/10/1990CN2063472U High-efficiency, effort-saving light-duty cement tile die
10/03/1990EP0390679A2 Process and apparatus for manufacturing kiln furniture made of ceramic foam, and kiln furniture thus obtained
10/03/1990EP0390302A2 Process and device for making plaster elements especially imitation marble with visible faces of high surface quality
10/02/1990CA1274673A1 Ajustable mold for manufacturing concrete elements such as stairs
09/1990
09/30/1990CA2013151A1 Manufacturing plaster elements
09/26/1990EP0389234A2 Liquid-tight slip-casting molds and method for production thereof
09/26/1990CN1009715B Fabrication technique and moulds for tightweight hollow bricks made of pottery clay
09/25/1990US4958398 Robot cleaner for use between parallel platens
09/20/1990DE4007189A1 Making columns, etc. for building industry - by placing longitudinally slit reinforced cylinder in half sleeve, casting e.g. concrete, fixing top half sleeve, and centrifuging
09/20/1990DE4006699A1 Female thread prodn. in concrete for anchoring scaffolds - has lubricant-coated screw enclosed in plastomer, elastomer or metal foil
09/20/1990DE3907202A1 Pressure sensor
09/19/1990EP0387326A1 Device for detachably fastening a mould frame.
09/11/1990WO1990010606A1 Acid resistant concrete articles, especially sulphur concrete pipes and a method of manufacturing them
09/11/1990US4956200 Texturing a mold surface
09/11/1990CA2048643A1 Acid resistant concrete articles, especially sulphur concrete pipes and a method of manufacturing them
09/11/1990CA1273780A1 Mold core with lid lowered by retracting corners
09/07/1990WO1990009874A1 Process and device for producing a profile section made mainly of ceramic materials
09/05/1990CN2061511U Static light-sensitive device for cement
09/04/1990US4954062 Apparatus for casting
09/04/1990US4953280 Method of manufacturing prestressed concrete culverts
08/1990
08/30/1990DE3906268A1 Verfahren und vorrichtung zum herstellen eines mehrheitlich aus keramischen materialien bestehenden profils A method and apparatus for producing a majority of ceramic materials consisting of profile
08/29/1990EP0384817A1 Plant for making prestressed concrete articles, in particular elongate construction elements
08/23/1990WO1990009265A1 Mold and method of manufacturing a mold
08/21/1990US4950434 Arrangement for the production of longitudinal screed slabs consisting of concrete
08/16/1990EP0381847A2 Process for making fibre-reinforced plaster boards
08/14/1990CA1272580A1 Concrete sleeper mould
08/09/1990DE3903641A1 Verfahren zur herstellung von gipsfaserplatten A process for producing gypsum fiber boards
08/08/1990EP0381466A2 Improvements relating to the production of concrete beams or the like
08/07/1990US4945701 Composite concrete floor panel
08/01/1990CN1044271A New technology of coloured marbled glazed building components preparation
07/1990
07/31/1990US4944907 Method for molding concrete blocks or bricks
07/25/1990EP0378618A1 Modular moulding system
07/24/1990US4943398 Method for manufacturing a fused cast refractory
07/24/1990US4943222 Apparatus for forming preformed material
07/17/1990US4941813 Mold guidance system for block making machinery
07/17/1990US4941643 Apparatus for forming inverts and manhole assemblies and the like utilizing adjustable invert forming members joined with an intermediate flexible portion
07/17/1990CA1271656A1 Conformable concrete pouring form sidewalk curbs
07/12/1990DE3943214A1 Verfahren zur herstellung von stuetzpfosten sowie nach dem verfahren hergestellte stuetzpfosten A process for preparing stuetzpfosten and prepared by the process stuetzpfosten
07/11/1990CN2059126U Terrazzo mould capable combining into several pattern
07/04/1990EP0376579A2 One-end closed ceramic double tube and method of manufacturing the same
07/03/1990CA1271011A1 Method of molding powders of metal, ceramic and the like
06/1990
06/27/1990EP0374956A2 Decay mold
06/26/1990US4937033 Method of forming protective layer on concrete or mortar
06/26/1990US4937027 Method of manufacturing corrosion-resistant concrete or mortar
06/21/1990DE3839556A1 Device for manufacturing concrete parts
06/19/1990US4935186 Method of manufacturing concrete beams
06/19/1990US4935178 Water absorbing mold which is vibrated to increase contact-sintering after hardening and removal
06/19/1990US4934122 Storage vault and method
06/13/1990DE3841579A1 Shuttering for large-format, curved precast reinforced-concrete compound units
06/12/1990CA1270139A1 Precast concrete manhole adjustable bolt slot for securing cast iron frame and cover and method for casting same
06/05/1990US4931242 Method of forming shaped-body to be sintered
06/05/1990US4931241 Method for producing structures by isostatic compression
06/05/1990US4931007 Automated casting apparatus
05/1990
05/31/1990WO1990005622A1 Method and device for fabricating posts made of concrete or the like with polygonal cross-section
05/30/1990EP0370853A2 Texturing a mold surface
05/22/1990US4927673 Rapid technique for making improved laminar ceramic shell molds using a phosphate modified aluminum salt binder
05/22/1990US4927600 Method for molding of powders
05/22/1990US4927573 Process for the production of building units from afterharding materials
05/15/1990CA2002930A1 Method and device for production of concrete or similar pole with polygonal cross section
05/10/1990DE3837571A1 Torpedo and use of the torpedo
05/10/1990DE3837320A1 Process for producing a concrete structural part
05/08/1990US4923665 Bonding molding material to preformed metal shape