| 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) |
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| 05/24/2000 | CN2379548Y Vibration type trowel |
| 05/24/2000 | CN1254321A Method of installing passenger conveyor in building and building construction method |
| 05/23/2000 | US6065859 Portable pendulous concrete vibrator |
| 05/23/2000 | US6065730 Bolt positioning and retaining device |
| 05/23/2000 | US6065685 Spray nozzle |
| 05/23/2000 | US6065257 Tendon alignment assembly and method for externally reinforcing a load bearing beam |
| 05/23/2000 | US6065254 Adjustable, foldable support brace |
| 05/18/2000 | WO2000028172A1 Screening assembly for the screening of work on an outside wall |
| 05/18/2000 | WO2000009381A3 Improvements to a carriage for a construction panel |
| 05/18/2000 | DE19949419A1 Grid support for hollow walls with reinforcement bars has two or more cross bars protruding alternately off-set at opposite ends to form spacer up to shuttering walls |
| 05/17/2000 | EP0714830B1 Method and apparatus for binding articles together |
| 05/17/2000 | CN2378471Y Assembling construction protection wall |
| 05/17/2000 | CN2378470Y Opus assembling construction protection wall |
| 05/17/2000 | CN2378469Y Steel strand tension device |
| 05/11/2000 | DE19849747A1 Verteilervorrichtung für Dickstoffe, insbesondere für Beton A distributor device for thick matter, especially for concrete |
| 05/10/2000 | EP0999322A1 Auxiliary device for realising round masonry and a method for producing such masonry |
| 05/10/2000 | EP0998615A1 Partly retractable construction platform |
| 05/10/2000 | CN1052290C Gasket mounting appliance and method of mounting the gasket |
| 05/10/2000 | CN1052281C Method and apparatus for casting concrete |
| 05/04/2000 | WO2000024989A1 Clamping device for a band-shaped tensional member |
| 05/04/2000 | WO2000024988A1 Distributing device for thick substances, especially concrete |
| 05/04/2000 | WO2000024304A1 Connector for a personal safety device |
| 05/04/2000 | DE19931231A1 Structured module for the construction of a cellar/basement has prefabricated upper and lower blocks of reinforced concrete to be fitted together with a seal between them |
| 05/04/2000 | DE19849605A1 Spannvorrichtung für ein bandförmiges Zugglied Tensioning device for a band-shaped tension member |
| 05/03/2000 | CN2376371Y Frequency converter for concrete vibrator |
| 05/02/2000 | US6055691 Method of mounting and tensioning a freely tensioned tension member and device for carrying out the method |
| 05/02/2000 | CA2154933C Method and apparatus for application of flexible sheet stock |
| 04/27/2000 | WO2000024114A1 Power transformer design for the electronic converters |
| 04/27/2000 | DE19951457A1 Covering for wall, particularly for upper side of brickwork, to which it is fixed, and has U-shaped cross-section, with legs of U engaging over top of wall |
| 04/26/2000 | EP0995859A1 Vibratory screed device for levelling freshly poured concrete surfaces |
| 04/25/2000 | US6053281 Roof perimeter safety rail system |
| 04/20/2000 | WO2000022257A1 Device for filling concrete from a concrete bucket into formwork |
| 04/19/2000 | EP0994038A1 Protective cover for a concrete reinforcing bar |
| 04/19/2000 | EP0738362B1 Concrete pumping device |
| 04/19/2000 | EP0738359B1 A beam anchoring device |
| 04/18/2000 | US6050032 Safety fence for a hatch formed in a slab |
| 04/11/2000 | US6047515 Accessory for building construction |
| 04/06/2000 | WO2000019039A1 Auto concrete pump |
| 04/05/2000 | EP0990080A1 Post-tensioning apparatus and method |
| 04/05/2000 | CN1249385A Laser plumb device,and apparatus and method for correction of plumbline of long member |
| 04/05/2000 | CN1051134C Multipurpose machine for building |
| 04/05/2000 | CN1051132C Multipurpose bucket structure |
| 03/30/2000 | DE19850009A1 Autobetonpumpe Concrete pump |
| 03/28/2000 | US6041891 Climbing device for building frames |
| 03/23/2000 | DE19842997A1 Mounting for attachment of roof fittings, has opening in roof zinc sheet to take projecting mounting plate with seal |
| 03/22/2000 | EP0987382A1 A holder for a level-indicating line |
| 03/22/2000 | CN2370103Y Chain type net |
| 03/22/2000 | CN2370102Y Specific concrete vibrator |
| 03/21/2000 | US6039150 Building guard rail scaffold assembly |
| 03/21/2000 | US6038829 Adaptable safety rail system for flat roofs and parapets |
| 03/16/2000 | WO2000014357A2 Device for externally prestressing building constructions |
| 03/16/2000 | DE19823238C1 Arrangement for introducing at least one steel tensioner into pipe has arrangement for feeding penetration tips into ends of steel objects arranged between drive unit and front end of pipe |
| 03/15/2000 | EP0985782A1 Poker vibrator for consolidating freshly poured concrete |
| 03/15/2000 | CN2368681Y Apparatus for tensioning prestressed arched blocks of concrete sleepers |
| 03/14/2000 | US6036146 Safety cable system |
| 03/14/2000 | US6036133 Recoiling string line apparatus |
| 03/14/2000 | US6035967 Safety apparatus using parallel line catchers for elevated work site operations |
| 03/09/2000 | DE19839938A1 Computerized rail-based wall building uses marker ropes tensioned between posts so rope fixers can be set by screw or bolt to give wall line accuracy. |
| 03/09/2000 | CA2616773A1 Device and method for stripping a cable |
| 03/08/2000 | EP0983776A1 Building safety system |
| 03/08/2000 | CN2367692Y First-open type connector |
| 03/08/2000 | CN2367691Y Auxiliary-material agitating device for production of plaster board |
| 03/07/2000 | US6032421 Structural blocks for building a basement, block manufacturing method, block transporting method, and block installing method |
| 03/02/2000 | DE19839403A1 Supports and fittings for points at wall corners on building construction railway have sleepers placed along wall and at points |
| 03/02/2000 | DE19837536A1 Transporting device for wall elements prefabricated from building bricks has load carrying unit with locating plates, protrusions on lower edge for gripping under wall element, and hook element for fitting over it |
| 03/01/2000 | EP0982450A1 Ready-mixed concrete placing method and formwork unit used for the method |
| 03/01/2000 | EP0981506A1 Self-levelling concrete and method for making a structural part |
| 03/01/2000 | EP0897442B1 Device for pouring out concrete |
| 03/01/2000 | EP0755475B1 Method and device for installing light-weight panel units |
| 03/01/2000 | CN2366486Y Wire connecting box easy to be maintained |
| 03/01/2000 | CN1246170A Post-tensioning apparatus and method |
| 02/29/2000 | US6029556 Aesthetic barrier/debris system and material |
| 02/29/2000 | US6029409 Door and doorway shield |
| 02/29/2000 | US6029407 Metal stud holding device |
| 02/24/2000 | WO2000009381A2 Improvements to a carriage for a construction panel |
| 02/23/2000 | CN2365328Y Concrete conveying device mounted on tower crane |
| 02/23/2000 | CN1245239A Four-date construction period for semi-precast multistoried building |
| 02/22/2000 | US6027295 Lifting system for manufactured and mobile homes |
| 02/22/2000 | CA2173285C Concrete or mortar projection method |
| 02/22/2000 | CA2006998C Slurry distributor |
| 02/16/2000 | CN2364138Y Concrete mixing truck |
| 02/15/2000 | US6023902 Frame structure and method of construction by using the same |
| 02/10/2000 | WO1999064695A8 Formation and attachment of tilt-up concrete panels |
| 02/10/2000 | DE3844895C2 Renovation and repair of structures |
| 02/09/2000 | CN2362963Y AC/dc low noise vibrator |
| 02/08/2000 | US6023159 Stud sensor with dual sensitivity |
| 02/08/2000 | US6022171 Apparatus and method for preparing a site and finishing poured concrete |
| 02/08/2000 | US6021702 Aesthetic barrier/debris system and material |
| 02/03/2000 | WO2000005477A1 Multi-purpose barrier |
| 02/03/2000 | WO2000004955A1 Safety unit |
| 02/03/2000 | DE19549550C2 Lifting eye system for concrete transport |
| 02/02/2000 | EP0976933A1 Improvements relating to masonry fittings |
| 02/02/2000 | CN2361744Y 抹灰机 Plastering machine |
| 02/02/2000 | CN2361743Y Machine-made wallboard conveyer |
| 02/01/2000 | US6019561 Device for erecting a wall |
| 02/01/2000 | CA2192144C Concrete structure having load transferring insert and method for makingsame |
| 01/26/2000 | CN2360524Y Low noise vibrating spear |
| 01/26/2000 | CN2360523Y Electromachime built-in insertion type concrete vibrator |
| 01/26/2000 | CN2360522Y Aerocrete products separating machine |
| 01/26/2000 | CN1242460A Method for building stairs and its stair-room, and support for stairs |