| 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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| 03/29/1983 | US4378192 Vehicular lift mechanism for transporting large structural members |
| 03/22/1983 | CA1143364A1 Device for lifting loads, especially heavy loads, in a stepwise manner by means of one or several jacks |
| 03/17/1983 | WO1983000896A1 Mobile conveyor/elevator |
| 03/16/1983 | EP0074234A2 Improvements in scabbling apparatus |
| 03/15/1983 | US4376527 Device for tensioning a reinforcing strand |
| 03/08/1983 | US4375709 Concrete working tool |
| 03/01/1983 | US4375351 Triangular truss concrete screed having a blade extension bracket |
| 02/22/1983 | US4374790 Method and apparatus for pumping concrete to form structure at elevated heights |
| 02/15/1983 | CA1141184A1 Twin trowel cement finishing machine |
| 02/15/1983 | CA1141183A1 Method and apparatus for pumping concrete to form structure at elevated heights |
| 02/08/1983 | US4372364 Door protector |
| 02/01/1983 | US4371330 Adjustable screed bar apparatus |
| 01/25/1983 | USRE31131 Concrete slab hoisting apparatus |
| 01/20/1983 | WO1983000177A1 Arrangement for the production of longitudinal screed slabs consisting of concrete |
| 01/18/1983 | US4368607 Anchor construction for prestressing members |
| 01/11/1983 | US4367892 Lift system for tilt-up walls |
| 01/11/1983 | US4367590 Calibrated tape for use in constructing wall with vertical studs |
| 01/11/1983 | CA1139271A1 Vehicular lift mechanism for transporting large structural members |
| 12/28/1982 | US4366209 Hardening surfaces of portland cements |
| 12/22/1982 | EP0067789A1 Device for supplying, twisting and cutting the end of a metallic or plastic wire for use as a fastening |
| 12/15/1982 | EP0066755A1 Guiding device for the hose of a concrete spraying installation |
| 12/15/1982 | EP0066724A1 Spraying device, particularly for sprayable concrete |
| 12/14/1982 | US4363618 Triangular truss screed having an end mounted guide bracket for engaging a wall-mounted support member |
| 12/14/1982 | US4363462 Recoverable formwork part for forming the anchoring location of a tendon in a concrete structural component |
| 12/14/1982 | US4363202 Apparatus for lining kilns, tunnels and the like |
| 12/07/1982 | US4362679 Method of casting concrete |
| 12/07/1982 | US4362192 Wire tying power tool |
| 12/01/1982 | EP0065731A2 Apparatus for spraying concrete |
| 12/01/1982 | EP0065681A1 Surface leveling and smoothing apparatus |
| 11/24/1982 | EP0065255A2 Apparatus for mixing and spraying wet concrete |
| 11/23/1982 | US4359850 Brick control device and method |
| 11/23/1982 | CA1135969A1 Building panel erection brackets |
| 11/16/1982 | US4359296 Vibrator for screed boards |
| 11/09/1982 | US4358227 Device for preparing and injecting sealing charges of cement |
| 11/09/1982 | US4357755 Column pad layout device, anchor bolt layout device, and layout methods |
| 10/19/1982 | US4354535 Hand-held automatic wire binding tool |
| 10/14/1982 | WO1982003419A1 Method and device for jointing building stones together |
| 10/14/1982 | WO1982003355A1 A device for smoothing and flattening newly laid concrete or a similar plastics mass |
| 10/13/1982 | EP0062155A1 Anchoring method for anchoring bolts or the like in concrete |
| 10/12/1982 | CA1133433A1 Installation apparatus for escalators |
| 10/12/1982 | CA1133272A1 Device for connecting a structure with a wall to be poured with concrete |
| 10/05/1982 | US4352445 Building material applicator |
| 09/30/1982 | WO1982003237A1 Method for mounting a roof, floor or similar structure and a structure adapted to be mounted according to the method |
| 09/29/1982 | EP0060959A1 Apparatus for winding wire |
| 09/28/1982 | US4351139 Connecting element for concrete or reinforced concrete structural members that are to be cast one after the other |
| 09/22/1982 | EP0060498A2 Apparatus for connecting two abutting reinforcing bar ends by a sleeve |
| 09/21/1982 | US4350279 Batten setter |
| 09/21/1982 | CA1131965A1 Method and device for assembling a layer of concrete paving bricks forming a brick disk in the form of a stretcher bond which may be used as one setting unit |
| 09/14/1982 | US4349328 Triangular truss concrete screed having a pan float finisher attachment |
| 09/14/1982 | US4349295 Structural ridge member for vibrating concrete screeds |
| 09/08/1982 | EP0059228A1 Safety device for hook-shaped load-engaging elements of lifting devices |
| 08/24/1982 | US4345740 Tensioning system for cables in prestressed concrete |
| 08/24/1982 | US4345671 Apparatus and method for installing elevator guide rails |
| 08/24/1982 | CA1130105A1 Tensioning systems for cables in prestressed concrete |
| 08/24/1982 | CA1130104A1 Housing device for isolating connecting reinforcements at joints between first and subsequently poured concrete structures |
| 08/11/1982 | EP0057622A2 Hydraulic linear winch comprising a pair of self-clamping jaws assuring alternatively the clamping of the axial cable carrying the load |
| 08/11/1982 | EP0057292A1 A method of interconnecting at least two load transmitting members by pressure jointing and a coupling for carrying out the method |
| 07/22/1982 | WO1982002358A1 Method and device for the production and optionally the discharge of foam-mixtures composed of binding agents and additives |
| 07/21/1982 | EP0056255A1 Device for fixing objects to a concrete wall |
| 07/21/1982 | EP0056132A1 Device for making undercuts in a hole bored in a concrete wall |
| 07/20/1982 | US4340351 Vibratory concrete screed with eccentric drive shaft |
| 07/20/1982 | US4340100 Rafter support jig |
| 07/13/1982 | US4338757 Device for connecting a structure with a wall to be poured with concrete |
| 07/13/1982 | US4338728 Mason's guide |
| 07/13/1982 | US4338724 Tool for positioning and defining holes in wall panels |
| 07/13/1982 | US4338715 Method for inserting a void plug into a lift insert for a concrete product |
| 07/08/1982 | WO1982002223A1 Linking bar support for making a link by adherance of construction parts |
| 07/07/1982 | EP0055666A1 Panel for the connection of reinforcing rods in concrete |
| 07/07/1982 | EP0055321A1 Connecting rods holding means for the realization of an efficient bond between two building elements |
| 06/23/1982 | EP0054026A1 Lost formwork for use when casting concrete floors. |
| 06/22/1982 | US4335976 Winch apparatus for vibrating concrete screed |
| 06/15/1982 | US4334662 Lanyard support for metal building roof |
| 06/15/1982 | US4334397 Masonry structure and apparatus and process for spacing block in the structure |
| 06/01/1982 | US4332516 Method and apparatus for throwing down concrete |
| 05/19/1982 | EP0051769A1 Anchor for concrete |
| 05/18/1982 | US4329825 Reinforcing bar support for joining concrete structures |
| 05/18/1982 | US4329786 Bricklayer's plumb guide |
| 05/13/1982 | WO1982001541A1 Lift system for tilt-up walls |
| 04/20/1982 | US4325533 Housing device for isolating connecting reinforcements at joints between first and subsequently poured concrete structures |
| 04/20/1982 | US4325207 Arch forming assembly |
| 04/14/1982 | EP0049599A1 Method and apparatus for forming an elevated concrete slab section of a building |
| 04/07/1982 | EP0048870A1 Apparatus for the construction of prefabricated wall units |
| 04/06/1982 | US4323200 Apparatus and method for winding an elongate member onto a body under tension |
| 03/30/1982 | US4322064 Object-spacing tool and method thereof |
| 03/23/1982 | US4321024 Formwork apparatus for casting directly on the ground accurate concrete slabs |
| 03/09/1982 | US4318256 Anchor construction for prestressing members |
| 02/23/1982 | US4316715 Vibratory concrete screed having an adjustable extension bracket |
| 02/17/1982 | EP0046099A1 Bracket scaffold and safety apparatus containing this bracket scaffold |
| 02/09/1982 | US4314773 High density concrete placer |
| 02/09/1982 | US4314429 Siding holder |
| 02/09/1982 | CA1117922A1 Roof attachment member for safety lines |
| 02/03/1982 | EP0044896A1 Apparatus for use in erecting the walling of an edifice by means of building blocks |
| 01/26/1982 | US4312603 Twin trowel cement finishing machine |
| 01/19/1982 | US4311396 Truck mixer |
| 01/13/1982 | EP0043730A2 Method and apparatus for pumping concrete to form structure at elevated heights |
| 01/12/1982 | CA1115979A1 Device for tensioning a reinforcing strand |
| 01/05/1982 | US4308701 Safety dowel guard and method of use |
| 12/29/1981 | US4307825 Bricklayers trowel holster |
| 12/29/1981 | US4307550 Apparatus for pre-stressing concrete structural member |
| 12/15/1981 | CA1114188A1 Method for building a reinforced concrete structure |