| Patents for E01C 19 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving (13,507) | 
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| 02/09/1982 | US4314773 High density concrete placer | 
| 02/04/1982 | WO1982000309A1 Drive mechanism | 
| 02/04/1982 | WO1982000308A1 A method and means for introducing fine particulate material | 
| 02/03/1982 | EP0044912A1 Method and apparatus for placing paving material on a road | 
| 02/02/1982 | US4313691 Lubrication and bearing structure for concentric, independently rotating drum and vibratory shaft | 
| 02/02/1982 | US4313690 Asphalt laying machine | 
| 02/02/1982 | CA1117341A1 Energy conserving paving method and apparatus using microwave heating of materials | 
| 02/02/1982 | CA1117340A1 Methods for sealing and resealing concrete using microwave energy | 
| 02/02/1982 | CA1117339A1 Microwave method and apparatus for reprocessing pavements | 
| 01/26/1982 | US4312602 Wet concrete pavement spreading machine and reinforcing rod layer | 
| 01/20/1982 | EP0043916A1 Drive mechanism for a drum | 
| 01/19/1982 | US4311408 Side delivery attachment for spreader truck | 
| 01/19/1982 | US4311274 Mobile apparatus for spraying protective coatings | 
| 01/12/1982 | US4310293 Apparatus for moulding concrete | 
| 01/12/1982 | US4310261 Control mechanism for vibratory roller | 
| 01/05/1982 | US4309113 Asphaltic concrete recycle exhaust gas treatment apparatus and method | 
| 12/16/1981 | EP0041584A1 Road roller with laterally disposed implements for the treatment of the edges of roads | 
| 12/15/1981 | US4305682 Soil compacting roller for confined areas | 
| 12/08/1981 | US4304504 Unsegregator shroud for hot mix asphalt laydown machine | 
| 12/08/1981 | US4304494 Slip-on shroud for asphalt mixer paddle | 
| 12/08/1981 | CA1114048A1 Syncro-matic circuit used with material spreaders | 
| 11/24/1981 | US4302128 Asphalt sealing machine | 
| 11/24/1981 | US4302127 Applicator and distributor assembly | 
| 11/24/1981 | CA1113084A1 Asphalt plant with improved temperature control system | 
| 11/18/1981 | EP0039716A1 Method and apparatus for producing and laying a ballasted mat for ground stabilization | 
| 11/17/1981 | US4300837 Device for the preparation of coated bituminous products for road surfacing | 
| 11/03/1981 | US4298293 Curb forming apparatus | 
| 11/03/1981 | US4298287 Center draft asphaltic concrete drum mixer | 
| 10/28/1981 | EP0038631A2 Asphalt weigh and mix apparatus and process | 
| 10/06/1981 | US4293228 Drum for an asphalt mixing apparatus | 
| 09/30/1981 | EP0036465A1 Self-propelled apparatus for constructing a road pavement by spreading a binder-aggregate mixture | 
| 09/17/1981 | WO1981002593A1 Control for plate vibrators | 
| 09/15/1981 | US4289421 Concrete road paving assembly | 
| 09/15/1981 | CA1108886A1 Linear motion impactor device | 
| 09/09/1981 | EP0035159A2 Gripper for slab-shaped concrete elements | 
| 09/08/1981 | CA1108456A2 Apparatus for continuously layup concrete | 
| 09/07/1981 | EP0028231A4 Control of burners. | 
| 09/02/1981 | EP0034914A1 Vibratory compaction system | 
| 09/01/1981 | CA1108202A1 Hydraulic power and control system for granular fertilizer spreaders or the like | 
| 08/26/1981 | EP0034296A1 Surface treatment | 
| 08/20/1981 | WO1981002316A1 Hydraulically ajustable pavement roller | 
| 08/19/1981 | EP0033911A1 Device for capacitive high-frequency heating of fragments containing bitumen or tar | 
| 08/19/1981 | EP0033812A1 Apparatus for preparing coated bituminous products for road surfaces | 
| 08/18/1981 | CA1107115A1 Gravel spreader | 
| 08/11/1981 | US4283014 Mobile spreader apparatus drive system | 
| 08/04/1981 | US4281934 Apparatus for mixing construction materials | 
| 07/28/1981 | US4280663 Scattering apparatus | 
| 07/28/1981 | US4280657 Concrete railroad track | 
| 07/28/1981 | CA1105962A1 Manually operated tongs for handling concrete paving stones and the like | 
| 07/22/1981 | EP0032468A2 Apparatus for producing bituminous mixtures from aggregates, bitumen and solid materials liable to deteriorate at high temperature | 
| 07/21/1981 | USRE30685 Adding petroleum hydrocarbons | 
| 07/21/1981 | US4279660 Process for the recovery and reutilization of the used materials in existing asphalt pavements | 
| 07/21/1981 | US4279592 Heat exchanger for pre-heating intake air for rotary dryer | 
| 07/21/1981 | CA1105357A1 Hydrostatically driven road rollers | 
| 07/08/1981 | EP0031352A1 An eccentric element. | 
| 07/07/1981 | US4277201 Transportable roadway and means for deploying the same | 
| 07/07/1981 | US4277180 Method and apparatus for making bituminous mixtures | 
| 06/30/1981 | US4276093 Asphalt production | 
| 06/30/1981 | CA1104081A1 Method of transporting liquid pitch containing coke and apparatus therefor | 
| 06/23/1981 | US4274586 Fluid spreading apparatus | 
| 06/23/1981 | CA1103537A1 Portable machine for transporting heated asphalt products for use in repairing asphalt pavement | 
| 06/09/1981 | US4272213 Extendible screeds | 
| 06/09/1981 | US4272212 Method and apparatus for rejuvenating and recycling asphalt | 
| 06/09/1981 | US4271555 Reinforced concrete bridge decking and method of making same | 
| 06/02/1981 | US4270801 Steering and cutter drum positioning in a paved roadway planing machine | 
| 05/28/1981 | WO1981001432A1 Method and apparatus for producting and laying a ballasted mat for ground stabilization | 
| 05/26/1981 | US4269536 Shock isolation means for an earth compactor drum | 
| 05/20/1981 | EP0028681A1 Security device for self-propelling working units | 
| 05/19/1981 | US4268208 Portable self-erecting silo apparatus | 
| 05/19/1981 | US4268187 Drag-type spreading apparatus for road construction mixtures | 
| 05/19/1981 | US4267971 Method and means of presetting the output rate of a centrifugal pump agricultural metering system | 
| 05/19/1981 | US4267946 Particulate matter dispensing device | 
| 05/19/1981 | CA1101259A1 Soil compaction | 
| 05/13/1981 | EP0028231A1 Control of burners | 
| 05/12/1981 | US4266917 Method and machine for slip forming median barrier walls for highways | 
| 05/12/1981 | US4266884 Resiliently mounted steering yoke for road roller | 
| 05/12/1981 | US4266731 Dump spreader | 
| 05/05/1981 | US4265559 Asphalt spreading machine | 
| 05/05/1981 | US4265546 Asphalt-aggregate drum mixing apparatus | 
| 04/29/1981 | EP0027779A1 Forming implement to pour precise concrete slabs directly onto the flooring | 
| 04/29/1981 | EP0027512A1 Apparatus for surveying the degree of compaction | 
| 04/28/1981 | US4264232 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 | 
| 04/28/1981 | US4264213 Desegregation preventing means for asphalt mix storage apparatus | 
| 04/22/1981 | EP0027164A2 Road-finisher trailing device for compacting the lateral edge of a completed roadway paving | 
| 04/21/1981 | US4262429 Method of and apparatus for drying materials | 
| 04/14/1981 | US4261694 Air vibrated/winched concrete screed | 
| 04/14/1981 | US4261669 Method and apparatus for repairing asphalt concrete paved road surface | 
| 04/14/1981 | US4261520 Hopper device for material spreader having a multi-positionable cover | 
| 04/07/1981 | US4260280 Road roller | 
| 03/31/1981 | CA1098354A1 Paving machines | 
| 03/24/1981 | CA1098114A1 Materials handling and application mechanism | 
| 03/18/1981 | EP0025186A1 Process and apparatus for preparing a bituminous mixture in a fired rotating drum | 
| 03/17/1981 | US4256506 Asphalt composition for asphalt recycle | 
| 03/17/1981 | US4256415 Concrete vibrator machine | 
| 03/17/1981 | US4256414 Asphaltic concrete recycling apparatuses, process and system | 
| 03/17/1981 | CA1097456A1 Method of and apparatus for asphaltic concrete hot mix recycling | 
| 03/11/1981 | EP0024834A1 Method for making a hearth of an electric furnace by vibratory compaction of particulate material | 
| 03/11/1981 | EP0024755A2 Method and device for heating asphalt-containing materials | 
| 03/11/1981 | EP0024634A1 Method and apparatus for purifying the exhaust gases of a plant for the production of bituminous coated materials | 
| 03/10/1981 | US4255058 Apparatus for preparing bituminous mixtures, especially road construction mixtures |