Patents
Patents for B28B 23 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material (3,841)
07/1991
07/25/1991DE4036944A1 Prefabricated concrete building component - is enclosed in sheet iron with protrusions and recesses forming shuttering for pouring
07/18/1991DE4001038A1 Attachment of switch mounting panel to wall - involves wedging element fitted under heads of fixing screws
07/17/1991EP0436859A2 Shuttering for making prestressed concrete sleepers with immediate anchoring
07/16/1991US5032340 Construction materials
07/16/1991US5032328 Portland cement and water
07/09/1991US5030287 Cement mix and method for producing reinforced building sheets from a cement mix
07/09/1991US5029424 Decorative quoin
07/03/1991CN1052627A Manufacture method for concrete brick having decorative material
06/1991
06/27/1991DE3942154A1 Prefab chimney with central flue - has outer wall of porous concrete with thermal insulation around flue
06/25/1991US5025605 Meshwork reinforced and pre-stressed concrete member, method and apparatus for making same
06/12/1991EP0431055A1 Spacer which can be embedded in concrete
06/11/1991US5023037 Method of and arrangement for manufacturing enclosed blocks
06/11/1991CA1284719C Method and mould for forming prestressed centrifugal piles, and piles thus obtained
06/04/1991US5021205 Concrete manufacturing process
05/1991
05/29/1991CN1051695A Technology of producing decorative terrazzo boards and the mould thereof
05/08/1991DE3934791A1 Reinforcing cage mfr. machine - has bending device between wire transporter and calibre, for zig zag wires
05/08/1991CA2005526A1 Method for casting friable asbestos-containing material into a non-friable mass
04/1991
04/30/1991US5010705 Curtain wall
04/25/1991DE4031643A1 Casting reinforced concrete building plates-blocks - using filler blocks held in place by spikes on reinforcement mesh as concrete is cast around them
04/18/1991DE3934198A1 Sealing strip of flexible material for tunnel section joints - comprises one-piece profile of projecting anchors joined by membrane to body
04/17/1991EP0422340A1 Panel for applying to a building and method for producing the same
04/11/1991DE3933588A1 Concrete shuttering and formwork - for prodn. of reinforced concrete rooms with variable dimensions and uses vertically and horizontally adjustable internal frame system
04/11/1991DE3932810A1 Automatic reinforcement positioning system - is used in concrete buildings and incorporates cutting machine and transfer magazine
03/1991
03/20/1991EP0418108A1 Process for and products obtained by mixing cement and reinforcing fibers
03/12/1991US4999150 Apparatus and method for introducing reinforcement into a mold
03/07/1991CA2024695A1 Cement and reinforcing fibre mixture, process for making such mixture and articles thereof
03/05/1991US4997215 Concrete pipe adaptor and method of making
02/1991
02/27/1991EP0414149A2 Pattern-inlaid ceramic tile and method for production thereof
02/26/1991US4996013 Method for rapid molding of elongate concrete articles
02/19/1991US4993208 Mold for producing tile-shaped floor elements for forming a double floor construction and a corresponding tile-shaped floor element
02/14/1991DE3926537A1 Wall or roof panel made from fibre-reinforced concrete - are installed by means of screwed bushes embedded in concrete
02/12/1991US4991372 Assembly of reinforcing bars and clip
02/12/1991CA1280005C Large-format ceramic tile with holding elements provided on the side facing away its visible side
02/06/1991EP0227753B1 Rapid moulding of hollow elongate concrete articles
01/1991
01/23/1991EP0408593A1 Device for inserting transport anchors in forms for concrete parts.
01/08/1991US4982538 Precast
01/08/1991CA1278671C Apparatus and method for making pre-cast concrete products
01/02/1991CN1048223A Method for producting concrete non-hardened material and concrete non-hardened coating
01/02/1991CN1011053B Method for mfg. multi-type fixing tool for prestressed concrete
01/02/1991CA1278535C Prestressed concrete articles
12/1990
12/26/1990CN1048002A Method for producing concrete products and concrete structure with decorated surface
12/26/1990CN1048001A Method for producing concrete shaped article surface and shaped decoration
12/21/1990CA2019175A1 Method and apparatus for prefabricating bridges and similar structures, with simultaneous casting of the segments forming a span
12/18/1990US4977715 Reinforced-concrete building element
12/13/1990WO1990015191A1 Process for securing inserted components in a form for mass-produced finished products
12/05/1990EP0401051A2 Concrete non-cure coating material, and concrete products with surface pattern or decoration using said material and production process therefor
12/05/1990EP0400199A1 Process to secure inserts in a form for the series production of parts
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
11/28/1990CN1047245A Steel plate reinforced concrete
11/27/1990US4972643 Concrete panels with embedded block insert
11/22/1990DE3931201C1 Concrete railway sleepers mfr. - uses moving frame mechanism which releases each sleeper immediately
10/1990
10/23/1990CA1275354C Access floor panel
10/18/1990DE3912408A1 Shuttering for concrete slabs - made of specified fibre reinforced plastic material
10/17/1990CN2063868U Prefabricated structural member extrusion shaper
10/11/1990DE3911514A1 Device for producing reinforcements of double walls provided for building purposes
09/1990
09/19/1990EP0388347A2 Concrete pipe making machine
09/19/1990CN1045438A Reinforced concrete cover of inspection well and manufacturing method thereof
09/18/1990US4957685 Method of making a transportable brick panel
09/18/1990US4957424 Concrete pipe making machine
09/13/1990CA2001399A1 Concrete pipe making machine
09/11/1990US4955171 Hydrated binder and porous particles capable of taking-up, stering and releasing water
09/04/1990US4953280 Method of manufacturing prestressed concrete culverts
08/1990
08/29/1990EP0384817A1 Plant for making prestressed concrete articles, in particular elongate construction elements
08/28/1990US4952129 Plant to manufacture elongated elements of prestressed reinforced concrete
08/16/1990EP0382649A1 Boarding for the realisation of swimming pools in particular, and method of manufacturing same
08/16/1990DE4003726A1 Structural panel - made of dispersion resin with cement or lime admixtures and fibre reinforcement
08/14/1990US4948089 Concrete mold with arrangement for mounting tubular components
08/09/1990WO1990008635A1 Process for the production of a concrete post, and concrete pile obtained
08/08/1990EP0381466A2 Improvements relating to the production of concrete beams or the like
08/07/1990US4945701 Composite concrete floor panel
08/07/1990US4945694 Building module
07/1990
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
06/1990
06/19/1990US4935844 Alkali-free green tape has silica and zinc borate flux particles dispersed in organic substrate
06/07/1990DE3840718A1 Verfahren zum herstellen von formkoerpern, insbesondere von platten A process for the manufacture of formkoerpern, in particular of plates
05/1990
05/31/1990WO1990005818A1 Method for making integral a mass of material with a functional support, and devices thus obtained
05/31/1990DE3840377A1 Process and apparatus for producing building boards
05/23/1990EP0369914A1 Method for joining a matrix material to a functional support, and devices manufactured according to this method
05/23/1990CN1042391A Building sheets of cement material reinforced with plastics mesh and glass fibres
05/16/1990CA2003060A1 Process for uniting a mass of material to a functional support, and device thus made
05/09/1990CN1007917B Composite pre-stressed structural member and method of forming the same
05/08/1990US4923664 Process for manufacturing a building panel
04/1990
04/18/1990EP0363875A1 Building sheets of cement material reinforced with plastics mesh and glass fibres
04/17/1990US4917749 Process for the continuous production of manufactured articles reinforced with mixtures of hydraulic binders
04/14/1990CA2000619A1 Building sheets of cement material reinforced with plastics mesh and glass fibres
04/10/1990US4916004 Cement board having reinforced edges
04/10/1990US4915888 Pressurization, vibration to consolidation
03/1990
03/21/1990EP0358823A2 Methods and apparatus for fabricating concrete panels with embedded glass block
03/20/1990US4909974 Cycles of mixing weighed mixture in distributor; conveying to mold; vibration
03/14/1990CN1007136B Process for prepn. of heating members
03/08/1990WO1990002234A1 Spacer which can be embedded in concrete
03/07/1990EP0356922A1 Spacer embedded in concrete
01/1990
01/25/1990WO1990000647A1 Process for manufacturing a point sleeper from concrete
01/24/1990EP0351730A1 Method for producing building sheets containing cement, inert materials and additives, and reinforced with plastics mesh
01/18/1990DE3823860A1 Process for the repeated use of a metal sheet of a shuttering for series-produced precast concrete compound units with different arrangements of installation parts
01/17/1990EP0350620A1 Method for manufacturing concrete sleepers for switch points
01/16/1990US4894270 Fold and bond for constructing cement laminate structural shapes
12/1989
12/13/1989CN1006059B Product and the manufacture method of the glazed cement
12/05/1989US4884958 Apparatus for setting up and pouring concrete forms
11/1989
11/30/1989DE3817831A1 Process for producing blocks
11/21/1989US4881714 Concrete molding system with tubs
1 ... 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39