| Patents for B28C 7 - Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture (4,780) |
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| 01/12/1994 | EP0577604A1 Method for blending of admixtures in a sprayed concrete mass and agent for application of the method. |
| 01/11/1994 | US5277491 Apparatus and method for dispensing a slurry |
| 12/22/1993 | EP0574728A1 Checking and transporting of a building material mixture |
| 12/15/1993 | CN2149281Y Apparatus for repairing rubber friction sheet |
| 11/23/1993 | US5263797 Hydraulic cement, water, dispersant |
| 11/18/1993 | DE4243065A1 Metering arrangement for components of lightweight concrete - has vaned rotor for expanded polystyrene granules and screw for cement, coupled on shaft with common drive |
| 11/17/1993 | CN2146357Y Energy-saving efficient feeder of automatic concrete proportioning machine |
| 11/16/1993 | US5261739 Multifunction construction machine |
| 10/27/1993 | EP0567367A1 Pneumatic transport method for bulk materials like mortar, concrete or sand, and transporting and mixing device for carrying out the method |
| 10/13/1993 | CN2143550Y Material distributor of concrete |
| 09/29/1993 | CN2142780Y Rotor of injector for concrete |
| 09/16/1993 | WO1993017848A1 Apparatus and method for measuring moisture in the manufacture of concrete |
| 09/15/1993 | CN2142064Y Hydraulic charging & discharging concrete mixer |
| 09/08/1993 | EP0558803A1 Transportable silo installation for granular material of the building industry |
| 09/01/1993 | EP0465474B1 Control arrangement for a two-cylinder pump for thick materials |
| 08/25/1993 | EP0556785A1 Device for pneumatically discharging of hydromechanically in compact flow transported concrete |
| 08/24/1993 | US5238371 Control arrangement for a two-cylinder pump for thick materials |
| 08/21/1993 | CA2089979A1 Device for the pneumatic discharge of concrete that is hydromechanically transported in a dense flow |
| 08/11/1993 | CN2139883Y Anti-glue material rotor for concrete spray machine |
| 08/11/1993 | CN2139882Y Water flooding magnetizer for concrete mixer |
| 07/28/1993 | EP0553048A1 Granular elevator with two skips |
| 07/21/1993 | CN2138553Y Automatic adding device for concrete additive |
| 07/14/1993 | EP0550926A1 Method and installation for extracting and providing in desired composition granular material such as sand |
| 07/06/1993 | US5224774 Concrete additive product and method of use |
| 07/06/1993 | US5224626 Concrete admixture weighing and dispensing system |
| 07/06/1993 | US5224595 Fibers with carboxy-containing polymers |
| 06/16/1993 | EP0546699A1 Packaging and dispensing system for fluid and semi-fluid cement admixtures |
| 06/16/1993 | EP0349551B1 Apparatus and method for producing foamed materials |
| 05/27/1993 | DE4138716A1 Transportable concrete mixer with integrated batching - ingredients carried separately and cement stored at selected temperature, materials mixed when required in thermally isolated reaction chamber |
| 05/19/1993 | CA2082983A1 Packaging and dispensing system for fluid and semi-fluid cement admixtures |
| 04/20/1993 | US5203629 Method for modifying concrete properties |
| 04/13/1993 | CA1315960C Reclaiming of waste concrete |
| 03/16/1993 | US5193906 Heater for a mortar preparation system |
| 03/04/1993 | WO1993004009A1 Process for producing water-repellent, porous plaster moulded bodies |
| 03/04/1993 | DE4128424A1 Verfahren zur herstellung von wasserabweisenden poroesen gipsformkoerpern Process for the preparation of water-repellent porous gipsformkoerpern |
| 03/04/1993 | CA2116443A1 Process for producing water-repellent, porous plaster moulded bodies |
| 02/24/1993 | EP0528005A1 Multifunction construction machine |
| 01/20/1993 | CN1068061A Centrifugal molding method for composite pipe having resin concrete layer and for resin concrete pipe |
| 01/14/1993 | DE4122062A1 Prepn. of dry material consisting of petroleum coke and electrode residues - for anodes for aluminium@ fusion analysis etc., using simple equipment ensuring accurate results |
| 01/12/1993 | US5178455 Method for recycling wash residue of ready mixed concrete and system therefor |
| 12/23/1992 | EP0519193A1 Dosing balance |
| 12/17/1992 | DE4119261A1 Pumpable concrete producing machine - has auger-type coaxial mixer and pump driven by common source and auger conveyor above |
| 12/09/1992 | CN2124122U Feed transmission for mixer |
| 12/01/1992 | US5167710 Construction materials |
| 11/10/1992 | CA1310008C Apparatus for dispensing particulate material |
| 10/21/1992 | EP0509966A1 Equipment for the preparation, transportation and distribution of mortar, plaster and/or granular aggregate or powdery materials |
| 10/21/1992 | CN1065422A Real-time monitoring method for quality of cement-earth mixture pile |
| 10/06/1992 | US5152605 Apparatus for making cooled concrete |
| 09/02/1992 | CN2114547U Anti-sticking material rator for concrete injector |
| 08/20/1992 | WO1992013693A1 Multifunction construction machine |
| 08/19/1992 | EP0499573A1 Apparatus for dosing fibre cut into a concrete mixture |
| 07/29/1992 | CN2111176U Automatic batcher |
| 07/23/1992 | WO1992011984A1 Portable container with automatic discharge capability |
| 07/23/1992 | WO1992011982A1 Method for blending of admixtures in a sprayed concrete mass and agent for application of the method |
| 07/23/1992 | CA2099885A1 Portable container with automatic discharge capability |
| 07/22/1992 | EP0495399A1 Smoothing device for levelling the upper surface of a layer of bulk material |
| 07/22/1992 | EP0495098A1 Method and apparatus for regulating mixture of granular material such as sand, powder such as cement and liquid |
| 07/22/1992 | CN1062865A Resin concrete mixing and feeding apparatus |
| 07/15/1992 | CN1062690A Apparatus for making coolable concrete |
| 07/07/1992 | US5127740 Concrete reclamation system and method for utilizing same |
| 07/02/1992 | DE4041727A1 Quick-setting foam mortar - has pressure monitor at pressure pump connection and feed lines to control feed of dry material and or water to mixer |
| 06/09/1992 | CA1302800C Method and spray aggregate for pouring air-placed concrete |
| 06/02/1992 | CA1302396C Particle wetting process and apparatus |
| 05/14/1992 | CA2029847A1 Heater for a mortar preparation system |
| 05/12/1992 | CA1300599C Mixer |
| 04/29/1992 | EP0482720A1 Method and device for dosing, mixing and applying a specific mortar |
| 04/08/1992 | EP0478865A1 Portable plant for proportioning and tempering dry concrete in bulk or other granular products |
| 03/18/1992 | CN2099015U Centrifugal type machine for dispersing steel-fibre |
| 03/11/1992 | CN2098359U Metering pump for powdered additive |
| 03/11/1992 | CN2098358U Combined concrete proportioning machine |
| 03/11/1992 | CN2098357U Concrete mixer with proportioning and metering device |
| 03/03/1992 | US5092933 Method for the production of concrete/mortar by using dry clathrate water and concrete/mortar products produced thereby |
| 02/12/1992 | EP0470829A1 Method for modifying concrete properties |
| 02/12/1992 | EP0470650A2 Water-absorbent polymer and its method of production |
| 01/23/1992 | DE4020253A1 Assessing characteristics of deformable mass |
| 01/22/1992 | EP0467086A2 A method for recycling wash residue of ready mixed concrete and system therefor |
| 01/15/1992 | EP0465474A1 Control arrangement for a two-cylinder pump for thick materials. |
| 01/14/1992 | US5080259 Portable container with automatic discharge capability |
| 01/08/1992 | CN1057636A Admixture for concrete mixes |
| 01/07/1992 | US5079727 Method and apparatus for carrying out a quality control |
| 12/31/1991 | US5076702 Installation for extracting granular material in a predetermined composition, method using that installation, a mixing unit, and means of measuring the water content of granular material |
| 12/25/1991 | CN2091220U Concrete burden mixer |
| 11/19/1991 | US5066203 Apparatus for pneumatically discharging concrete |
| 11/14/1991 | WO1991017104A1 Portable storage and dispensing apparatus |
| 10/16/1991 | EP0451496A1 Concrete mixer feed unit in concrete mixing plants |
| 10/09/1991 | EP0450738A2 A floating dredging apparatus for extracting sand and/or gravel and method using that apparatus |
| 10/08/1991 | CA1290322C Liquid heating system for concrete plants |
| 10/02/1991 | DE4010045A1 Cooling system for cement - has mixer tube for cooling fluid in cement feeder tube |
| 09/17/1991 | US5049196 Method of wetting a cement or gypsum-bonded fibrous mixture of building materials |
| 08/29/1991 | DE4020280A1 Ascertaining necessary mixing period for concrete - by measuring load using damped harmonic vibration technique to minimise mixing time |
| 08/14/1991 | DE4020279A1 Determining moisture in concrete additives during mixing - by monitoring of mixer drive power consumption |
| 08/14/1991 | DE4020251A1 Concrete additive moisture determn. by changed drive load - after specific cement addn. permits precise mixt. control |
| 08/14/1991 | CN2082673U Concrete burden machine |
| 08/01/1991 | DE4002777A1 Control of quantity of water in concrete mixer - involves electronic control circuit comparing desired and actual flows of water to point of delivery |
| 07/31/1991 | CN1013345B Mixer |
| 07/23/1991 | US5033156 Flow regulator and scraper for a concrete mixer dispensing chute |
| 07/10/1991 | CN2080454U Bucket-type proportioning apparatus of program-controlled electric jigging conveyer |
| 06/25/1991 | US5027267 Automatic mixture control apparatus and method |
| 05/28/1991 | US5018673 Continuously working mixer |
| 05/15/1991 | CN2076915U Agitator feed hopper oscillating guide |