| 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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| 05/10/1994 | CA2020159C Tendons for prestressed concrete structures and method of using and process for making such tendons |
| 05/06/1994 | CA2102458A1 Lifeline anchor assembly for pre-cast concrete deck |
| 05/05/1994 | DE4237058A1 Travelling work platform with forklift and crane column - has forklift horizontally protruding from vertical drive for its lifting and lowering |
| 05/04/1994 | EP0594720A1 Anchorage device |
| 05/03/1994 | US5307897 Safety stanchion for fall protection system |
| 04/28/1994 | WO1994009232A1 An anchoring eyelet for tarpaulins and similar coverings |
| 04/28/1994 | WO1994008790A1 Emergency flat roof repair method |
| 04/28/1994 | DE4237139A1 Transporting constructional elements, esp. large wall panels - is carried out by programmed control of gripper arm and travelling carriage transporting panels from pallet to site of work |
| 04/28/1994 | CA2146927A1 An anchoring eyelet for tarpaulins and similar coverings |
| 04/20/1994 | EP0593150A2 Safety device |
| 04/14/1994 | WO1994008111A1 Concrete-distribution rig |
| 04/13/1994 | EP0591684A1 Safety apparatus for the doorway of an elevator |
| 04/12/1994 | US5301918 Form assembly for construction of concrete culverts |
| 04/12/1994 | CA1328525C Coating material for tendon for prestressed concrete |
| 04/07/1994 | DE4240602C1 Cut=off slide for installation in constructional material conduits - with PTFE slide plate rotatably located in housing |
| 04/07/1994 | DE4233171A1 Betonverteilermast Concrete placing boom |
| 04/05/1994 | US5299655 Workplace support and enclosure |
| 04/05/1994 | US5299654 Safety net support system |
| 03/31/1994 | WO1994006983A1 Anchorage for reinforced concrete |
| 03/30/1994 | CN2159991Y Automatic applying device for concrete |
| 03/24/1994 | DE4231599A1 Steering system for work cage or tool on end of telescopic crane jib - uses conventional positional transducers and control equipment to hold cage in given plane parallel to wall and to traverse cage at constant velocity |
| 03/23/1994 | CN2159430Y Automatic feeder for concrete mixing station |
| 03/22/1994 | US5296666 Microwave heating apparatus having two cavities and method of using the same |
| 03/22/1994 | US5295557 Utility construction safety and work platform |
| 03/17/1994 | WO1994005886A1 Weather or protection bar for window frames, door frames or the like, placed in the transition to the rendering |
| 03/16/1994 | EP0586639A1 Device for detachably securing formwork boards |
| 03/15/1994 | CA1327826C Apparatus and method for lifting tilt-up wall constructions |
| 03/15/1994 | CA1327782C Perimeter debris net lifting system |
| 03/10/1994 | DE4229943A1 Handling device for large-format building materials - has right angled pick-up platform which automatically swivels round under weight of materials and drops down with hydraulic braking. |
| 03/10/1994 | DE4229080A1 Anputz- und Schutzleiste für Fensterrahmen, Türrahmen oder dergleichen am Übergang zu Putz Plastering and protection strip for window frames, door frames or the like at the transition to the plaster |
| 03/09/1994 | CN2158428Y Vibration type constructional work machine |
| 03/08/1994 | US5291718 Masonary tool for a concrete block wall |
| 03/08/1994 | US5291716 Method for erecting buildings, and structural assembly for carrying out the method |
| 03/08/1994 | US5291713 Construction element for limiting the fore part of a formwork |
| 03/08/1994 | US5291687 Window track debris accumulation prevention system |
| 03/03/1994 | WO1994004932A1 Dual sensitivity stud sensor |
| 03/03/1994 | WO1994004792A1 Travelling concreting device |
| 03/02/1994 | CN1083159A Force transfer body for an anchorage |
| 03/01/1994 | US5289609 Guide for cleaning paint from windows |
| 02/24/1994 | DE4327053A1 Concreting machine with rotary vertical column on undercarriage - has distribution mast with several, telescopic mast jibs, and distribution arm |
| 02/23/1994 | CN2157257Y Walking concrete vibrator |
| 02/22/1994 | US5287944 Roof mounted anchor used singly or with another, and with other equipment in a fall restraint and/or fall arrest system |
| 02/17/1994 | DE4226977A1 Erecting building walls with apertures from wall elements - involves spacing two wall elements with facing side plate edges for forming wall aperture |
| 02/17/1994 | DE4226795A1 Mortar application to wall bricks - involves setting brick lower face against dispensing grate and pressing both against mortar storage surface |
| 02/17/1994 | DE4225640A1 Reinforcing connector between reinforced-concrete components |
| 02/10/1994 | DE4226088A1 Mechanical, or explosive demolition of building, contg. harmful substances - involves completely separating building to be demolished from surrounding space, and applies vacuum to inner space |
| 02/10/1994 | DE4225716A1 Mortar applicator with pumping delivering mortar via hose(s) - has frame with several support legs coupled by transverse girders having rotatable jibs with arms pivotably interconnected with hoses |
| 02/08/1994 | US5284000 Automating bricklaying |
| 02/08/1994 | US5283996 prestressed concrete slab |
| 02/02/1994 | EP0581433A1 Cathodic protection system comprising on electroconductive coating and coating composition thereof |
| 02/02/1994 | EP0580887A1 Method for assembling stranded anchors and transporting them to the construction site, and apparatus for carrying out the method |
| 02/02/1994 | EP0580813A1 Method and device for the monolithic application of a thermal-insulation and/or fire-protection compound to a surface. |
| 02/02/1994 | EP0580623A1 Binding machine |
| 02/02/1994 | CN2154885Y Water-resistent band with locating hole |
| 02/01/1994 | US5282597 For a truss roof of any pitch |
| 02/01/1994 | CA1326641C Lifting and positioning device for cabinets and construction panels |
| 01/27/1994 | DE4323796A1 Method of removing residual concrete from hopper and delivery pipe of piston type pump - involves running pump empty to create air pressure expelling part of residual concrete and then pumping water behind sponge to expel remainder |
| 01/27/1994 | DE4224004A1 Lifting machine for heavy building blocks - incorporates lifting surface for blocks, working platform set at lower level, and crane |
| 01/26/1994 | EP0580018A1 Concrete-conveying arrangement |
| 01/25/1994 | US5281050 For mounting at least two rods |
| 01/22/1994 | CA2099955A1 Cathodic protection system and a coating and coating composition therefor |
| 01/20/1994 | WO1994001639A1 Mounting device for building surfaces |
| 01/20/1994 | DE4310208A1 Dirt protection for roller shutter belt on belt winder - has longitudinal hollow body, open at region of both ends and on one longitudinal side |
| 01/20/1994 | DE4226686C1 Strip for fitting in wall aperture for windows and doors - is fitted during plastering process and remains in plaster when work completed |
| 01/19/1994 | EP0578809A1 Method and device for arranging building panels. |
| 01/12/1994 | EP0577604A1 Method for blending of admixtures in a sprayed concrete mass and agent for application of the method. |
| 01/12/1994 | CN2152852Y Gravity hand-pressing brick tongs |
| 01/06/1994 | WO1994000281A1 An arrangement and method for vibrating concrete by means of a vibrating pole |
| 01/06/1994 | CA2138545A1 An arrangement and method for vibrating concrete by means of a vibrating pole |
| 01/05/1994 | CN2152029Y Vertical control rod for brick wall |
| 01/05/1994 | CN2152028Y Vertical pole assembling and disassembling device for building steel pipe frame |
| 01/05/1994 | CN1080346A Automatic grouting technique and device for anti-leakage plate of dam |
| 01/04/1994 | US5275390 Lifting and positioning device for cabinets and construction panels |
| 12/29/1993 | EP0575380A1 Supporting element for use in casting concrete floors. |
| 12/28/1993 | US5272851 Improvements to the devices for reinforcing concrete in compression and to concrete works thus reinforced |
| 12/22/1993 | CN2150279Y Iron trowel with mortar-applying |
| 12/17/1993 | CA2071292A1 Improvements to processes and devices for increasing compressive strength of concrete, and to concrete structures so reinforced |
| 12/16/1993 | DE4307072A1 Assembly gauge for aligning water connections and drainage pipes in wall - has main part with at least one trough for receiving each structural securing part screwed with respective water connection and positioned by stop at trough. |
| 12/14/1993 | US5269577 Carpentry stud alignment tool |
| 12/01/1993 | EP0572315A1 Improvements to devices for making intermediate anchors on prestressed cables |
| 12/01/1993 | CN2148125Y Hollow block mortar-applying apparatus |
| 12/01/1993 | CN2148124Y Strong magnetic multistage vibration forced vibrating spear for concrete |
| 12/01/1993 | CN1079019A Safety apparatus |
| 11/25/1993 | WO1993023641A1 Vibrator with built-in electromotor |
| 11/25/1993 | DE4216367A1 Prefab. masonry element of bricks with mortar joints - has building faces of stepped or toothed configuration |
| 11/24/1993 | EP0570717A1 Reinforcing element for connection |
| 11/23/1993 | US5263835 Building construction system |
| 11/23/1993 | US5263550 Railing for portable staging |
| 11/18/1993 | DE4215463A1 Rüttler mit eingebautem Elektromotor Jogger with self-contained electric motor |
| 11/16/1993 | US5261198 Modular concrete connector |
| 11/10/1993 | EP0568934A2 Device for lifting prefabricated components, particularly made of concrete or the like |
| 11/10/1993 | EP0568799A1 Shuttering for a joint |
| 11/10/1993 | EP0568677A1 Lifting pin and system |
| 11/10/1993 | CN1078211A A lifting device and method |
| 11/10/1993 | CN1078192A Method for increasing or decreasing bond strength between concrete and embedded steel, and for sealing the concrete-to-steel interface |
| 11/09/1993 | US5259721 Apparatus for transporting/mounting a building material |
| 11/05/1993 | CA2094316A1 Microwave heating system |
| 11/03/1993 | EP0481009B1 An apparatus for securing fittings in a thermoplastic foil web |
| 11/03/1993 | CN1022640C Wet injector set for concrete |
| 11/02/1993 | US5257764 Screed rail support apparatus |