Patents
Patents for E04G 21 - Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work (22,137)
06/1993
06/22/1993US5221076 Protective device and method of installing protective device
06/16/1993EP0546674A1 Safety net arrangement for building elevator shafts
06/15/1993US5219583 Apparatus for securing fittings in a thermoplastic foil web
06/15/1993US5219175 Mobile support device for concrete-spreading hoses
06/15/1993US5219039 Fall prevention system for billboards
06/10/1993WO1993011314A1 Method of increasing towards an upper limit the carrying ability in constructions by optimization of the degree of utilization of reinforcement and similar strengthening elements
06/09/1993CN2135615Y Numerical prestressed steel wire stretch-draw machine
06/08/1993US5217049 Power rebar typing tool
06/03/1993DE4239622A1 Crane and combined platform for handling building stone - three sectioned crane arm deployed from portable platform which used for storing and moving building stone
06/02/1993EP0544573A1 Device for preventing slack in prestressing strands
06/02/1993EP0544524A1 Cover
05/1993
05/27/1993DE4138470A1 Attachment of anchor cable to anchor plate - by means of wedges which do not affect tension in cable
05/26/1993CN2134423Y Vibrating pile hammer
05/26/1993CN1020995C Tensioner for erecting flexible cable
05/25/1993US5212920 Strongback attachment system for concrete panel tilt-up construction
05/22/1993WO1993010321A1 Lifting pin and system
05/22/1993CA2100871A1 Lifting pin and system
05/13/1993WO1993009313A1 Stanchions for steel framed buildings
05/13/1993DE4136999A1 Anchoring transport sleeve marker plate for prefab. concrete component - is in form of disc detachable from anchoring bars embedded in concrete
05/12/1993EP0540918A1 Screed for striking off or smoothing plastic concrete surfaces
05/12/1993CN2132578Y Draft regulator for prestressed reinforcing bar
05/09/1993CA2082026A1 Safety net arrangement for building elevator shafts
05/05/1993EP0540401A1 Method and device for removing excess of water from the prestressing sleeves
05/05/1993EP0539845A1 Support device for reinforcement rods anchoring a concrete wall
05/05/1993CN2131921Y Brick-laying machine
05/05/1993CN2131920Y Electric trowel
05/05/1993CN2131919Y Front clipping, self clamping, floating head pressing stretching, riveting unit
04/1993
04/30/1993CA2081493A1 Method and apparatus for removing exudate from a prestress sheathing
04/21/1993CN2130182Y Densely covered mesh vertical plastic safety net
04/20/1993US5203442 Cantilever conveying techniques
04/14/1993CN1070976A Construction element for limiting forepart of formwork
04/13/1993US5202612 Concrete vibrator
04/13/1993US5201152 Containment device for contaminated building demolition
04/13/1993CA1315944C2 Seismic anchor
04/07/1993EP0535679A1 Flexible protection foil
04/07/1993CN2129307Y Balanced self-adjusting anti-interference tightening device of earthworking belt
04/06/1993US5199412 Production facility for the mechanized fabrication of masonry
04/06/1993US5199292 Assembly to bend bundles of rods
04/06/1993CA2014274C Method of forming dense concrete surface layer
04/01/1993WO1993006320A1 A method and arrangement for feeding straight wire-sections to a given position
03/1993
03/31/1993EP0534475A1 Cable loop insert
03/31/1993EP0521917A4 Construction site safety
03/30/1993US5198246 Concrete molding device
03/30/1993US5197239 Containment system
03/25/1993DE4131295A1 Variable height sighting device, esp. for laying floor, cladding wall etc. - comprises rod with movably mounted casing with threaded bore, set screw, and holder for sighting string or rail
03/24/1993EP0532793A1 Vibrator and related method
03/24/1993CN2128655Y Building device for snaping line
03/23/1993US5195247 Construction layout marking device
03/17/1993EP0426709B1 A process and device for distributing pumpable viscous materials among several lines
03/16/1993US5193723 Mortar applying device
03/16/1993US5193320 Masonry laying device
03/10/1993EP0530653A1 Sealing strip
03/04/1993WO1993004249A1 Guard rail fittings
03/04/1993DE4128293A1 Protective cover for projecting concrete reinforcement. - has plastics covers located on formwork which are of hollow rail-type shape.
03/04/1993CA2116555A1 Guard rail fittings
03/02/1993US5190396 Concrete leveling apparatus
03/02/1993US5190270 Apparatus for erecting foundation reinforcing bars and the like
02/1993
02/23/1993US5188342 For roof edge protection
02/18/1993WO1993003286A1 Device and process for temporarily applying holding or securing means to a surface
02/16/1993US5186299 Concrete chute apparatus
02/10/1993EP0404802B1 Variable set-up, reusable centering frame for use as movable and stationary equipment
02/10/1993CN2126862Y Flush bonding prestressed concrete steel wire bundle anchor
02/09/1993US5184924 Method and equipment for transferring concrete slabs
02/04/1993WO1993002263A1 Anchorage device
02/04/1993CA2113452A1 Anchorage device
02/03/1993WO1993002816A1 Power rebar tying tool
02/03/1993CN1068619A Adjusting and controlling device for tensile strength of prestressed reinforcement
02/03/1993CN1068618A Concrete making technology by fractional nucleus spraying of cement
02/03/1993CA2093225A1 Power rebar tying tool
02/02/1993US5183356 Method and device for distributing pumpable thick matter into several delivery pipes
02/02/1993US5182889 Barrier system
01/1993
01/27/1993CN2126636Y Inclined construction elevator
01/26/1993US5182057 Method for in situ dispensing of cementitious materials at remote locations
01/26/1993US5181825 Method for lifting and guiding elements on building site
01/26/1993US5181296 Reinforced carrier disc for operable partition system
01/21/1993DE4124147A1 Temporary railing for work on flat roofs
01/20/1993WO1993002264A1 Method of manufacturing a hollow self-supporting concrete structure, means for performing said method and structures obtained by means of the method
01/19/1993US5180253 Arrangement of prestressing tendons in a pressure tunnel
01/19/1993CA1312738C Bundled tensioning member for prestressing a tall structural member and method of installing same
01/14/1993DE4122260A1 Drilling or nailing jig for fixing battens - has shoe with block welded to its transverse member with slot at required nailing angle
01/14/1993DE4120375A1 Mortar drum for use on building sites - is of metal with first floor 1 mm thick of rolled plate in rigid connection with outer part together with identical floor plate.
01/13/1993EP0522033A1 A fastening member for fastening a protecting or shielding cover to a scaffolding or a similar supporting structure, and a tool for use in mounting the fastening member.
01/13/1993EP0521917A1 Construction site safety.
01/12/1993US5178195 Apparatus for connecting at least two rods
01/12/1993US5177928 Flat steel anchor for a pre-cast concrete component
01/12/1993US5177919 Apparatus for constructing circumerentially wrapped prestressed structures utilizing a membrane and having seismic coupling
01/07/1993EP0495954A4 Hoardings for a construction site
01/07/1993DE4122298A1 Security barrier for work on flat roofs - is based on space frame girders counterweighted and supported on wheels to allow barrier to move along roofing edge
01/06/1993CN1067701A Quick join device for reinforcing bar
12/1992
12/30/1992CN1067470A Method for production of corrugated, prestressed, reinforced concrete structural member
12/24/1992DE4121826C1 Insertion of anchor strands in boreholes - using box-type frame containing anchorages alongside winches and wire strands
12/23/1992WO1992022717A1 Method and apparatus for the construction of walls of bricks or blocks
12/23/1992EP0519146A1 Stop-end shuttering
12/23/1992CN2125710U Internal-combustion oscillating guide
12/22/1992US5173004 Concrete pouring and leveling devices and method of using
12/22/1992US5173002 Lifting and positioning device for cabinets and construction panels
12/17/1992DE4119760A1 Device to assist in the construction of block walls - has front and back guides for block placement and block lifting device and mortar spreading hose
12/17/1992DE4119429A1 Tool and procedure for producing level mortar bed for laying bricks etc. - has height adjustable frame and stiff bar projection which is used to guide batten drawn across mortar bed to level it
12/17/1992DE4119261A1 Pumpable concrete producing machine - has auger-type coaxial mixer and pump driven by common source and auger conveyor above
12/16/1992EP0518771A1 Method of and device for the reinforcement of the pressure load capacity of concrete and reinforced concrete structures