Abstract: An applicator apparatus for dispensing and shaping a sealant material into a groove to be filled with the sealant material includes a dispensing head having an arcuate convex bottom surface which rides on the opposite side edges of the groove to be filled and protrudes into the groove and functions to shape or form a corresponding arcuate shape in the top side of the sealant. The dispensing head further includes a sealant dispensing passage having a sealant outlet opening at the bottom surface for dispensing sealant into the groove. In operation, the dispensing head is moved along the groove to be filled with sealant materials, and concurrently sealant material is dispensed through the dispensing passage into the groove. As the dispensing head is moved along the grooves, the arcuate bottom surface of the dispensing head forms a corresponding shape into the dispensed sealant material in the groove.

Abstract: A motor driven wheeled road patching vehicle includes a gravel hopper and a tank of heated asphalt. A gate assembly is adjusted to control gravel flow into a pressurized hose. A telescoping tube assembly extendable between a maximum and a minimum overall length for patching operations and compactness when not in use has debris air gaps to facilitate, by venturi effect, debris clearance. Telescoping elements of increasing diameter are further from the inlet end of the tube assembly to reduce wearing. An elbow couples the telescoping tube outlet to a mixing head, and has a hollow collector box for accumulating gravel which erodes the outside elbow portion, the collected material serving to prevent further wearing. The tank is heated by thermostatically controlled heater elements when not in use and by engine coolant from the truck engine coolant system flowing through a tube near the bottom of the tank. A nozzle, heated by the engine cooling system, mixes molten asphalt and gravel.

Abstract: A full depth thermal crack in an asphaltic pavement is repaired by spraying a first rejuvenating agent into the sides of the crack and over the top portion of the asphalt pavement surrounding the crack, heating the top portion of the asphalt to a predetermined temperature greater than 700.degree. F., scarifying the heated asphalt, adding an asphaltic rejuvenating/emulsion agent to the heated, scarified asphalt, compacting the heated, scarified asphalt into the crack for the full depth of the crack wherein heat in the asphalt added to the crack is transferred to the asphalt surrounding the crack to raise the temperature of the surrounding asphalt sufficient to form a homogeneous bond between the original and new asphalt added to the crack. In a preferred embodiment, the heated, scarified asphalt is added in predetermined quantities into the crack so as to fill the crack only to a predetermined depth and then compacted before additional quantities of asphalt are added and compacted in subsequent steps.

Abstract: An ambient temperature applied asphalt emulsion material is disclosed for repairing traffic-bearing surfaces. A method of applying the asphalt emulsion material for quick hardening by the addition of a hardening agent is shown. An applicator wand which applies the emulsion and hardening agent mixture to a surface and smooths the applied material for hardening level with the surface.

Abstract: The apparatus for spreading a fluid or similar substance, especially a bonding emulsion for road asphalt onto the surface of a road, comprising, on a movable vehicle (1), at least one spreading boom (18, 19), along which the spreading is carried out at least partially, said boom being associated with at least one ejection nozzle (23, 24) and with a feed circuit (8; 106) and being capable of being displaced relative to the movable vehicle (1) transversely to the direction of movement of the latter, and is associated with motor means (30) intended for driving it in displacement, during spreading, in a to-and-fro movement. The machine of the finisher type comprises such an apparatus.

Abstract: A manually operated trowel is used for finishing wet concrete. The float portion is a rectangular plate-like structure with a handle mounted to its top center region. The handle may consist of several extensions. The base of the float has three distinct regions that extend along the length of the float. The front and rear regions are of a smooth texture while the center region, extending between the front and rear regions, has laterally extending teeth-like V-grooves. The grooves extend below the smooth surfaces of the forward and rearward regions.

Abstract: A vehicle for filling potholes and the like in roads with an asphalt-gravel mixture which comprises a wheeled chassis and driving motor, a gravel hopper, a tank for holding liquid asphalt, an extendable and retractable boom, a head applied on the boom for mixing and applying the asphalt-gravel mixture to desired road sites, a first hose carried along the boom and communicating between the hopper and the head, and a second hose carried along the boom and communicating between the tank and the head. Improvements in the disposition of the first and second hoses are provided, along with an improved valve for the gravel hopper, to greatly reduce wear in the apparatus during use and thus to reduce the need for maintenance.

Abstract: A pavement patcher has a frame supported on the back of a truck. An operator's platform is movable horizontally and transversely on the frame across the back of the truck, and longitudinally for a short distance. The platform carries a hydraulic control console and a blacktop hopper with a hydraulic rotor and an auger. The platform also carries a steel roller mounted on hydraulic rams. The truck driver stops with the frame over a hole. The operator riding on the platform positions the side delivery opening at the bottom of the hopper next to the hole and operates the auger to dispense the required amount of blacktop. The operator then extends the rams to lower the roller and moves the platform to roll the roller across the patch. Significant force is developed on the roller from the hopper's platform, carriage, frame and truck to seal the patch. A hydraulic package is mounted at a side of the frame with a motor, pump and reservoir.

Abstract: A method for applying an asphalt layer on a construction surface comprises the steps of placing an asphalt lattice having an admixture of fibrous and particulate matter onto the construction surface, and heating the lattice with a flame so as to melt the asphalt mixture causing it to flow over the surface and fill any depressions and cracks thereon. The asphalt layer thus formed is in intimate contact with the surface and can be used as waterproofing or as a primer layer for further applications of asphalt.

Abstract: A vehicle for transporting and dispensing materials required for filling and repairing cracks in roadways and highways or similar traffic-bearing surfaces comprises a supply tank for asphalt mix or emulsion or the like liquid crack-filling material, a hose leading from the asphalt supply tank to a dispensing area adjacent the vehicle, a directable applicator connected to the hose for directing crack-filling materials from the asphalt supply tank into cracks in the roadway, a resilient squeegee blade supported from the vehicle for dragging across the roadway dispensing area after crack-filler material is directed into cracks so that the crack-filler material is leveled, a hopper for carrying sand, rock chips, or other substantially dry structural material for covering the liquid crack-filler material and binding therewith to form in the aggregate substantially firm roadway surfaces, a dispensing broadcaster attached to the vehicle adjacent the dispensing area, and a conveyor interconnected with the hopper for

Abstract: A vehicle surface crackseal train that carries equipment for performing preliminary crack preparation, and remedial work to cracks, has equipment to apply hot and cold liquid crack sealants, and has equipment for applying particulate material to the treated cracks. The vehicle surface crackseal train has a powered vehicle that is positioned a predetermined distance ahead of the sand wagon to form a first work area between the two units. Safety barricade tractor towing beams are laterally spaced a predetermined distance and connect the rear of the powered vehicle to the front end of the sand wagon to form a first work area between the two units. Safety barricade beams are attached to the front end of the vehicle for enclosing a second predetermined work area for workmen to occupy when using equipment for repairing road surface cracks.

Abstract: Discloses apparatus and methods for providing a longitudinal joint between a cold (previously laid) and a hot (freshly laid) mat of paving material, such as asphalt, and wherein after the rolling of the paving material the joint region between the cold and the hot mats is of a high and substantially uniform density. To this end, there is provided a quantity of additional fresh (hot) paving material formed into a shaped charge and disposed adjacent the edge of the cold mat section. The quantity of additional fresh paving material contained in the shaped charge and the configuration of the shaped charge are made such that after appropriate rolling of the paving material, the lateral and transverse compaction forces generated force sufficient fresh paving material into the joint region between the cold and hot mat sections to bring the density of the paving material in such joint region to substantially the specified density and substantially the same as that of the cold and hot mat sections.

Abstract: A vehicle for transporting and dispensing materials required for filling and repairing cracks in roadways and highways and the like is disclosed.

Abstract: The improvement to machines for filling trenches in paved surfaces has two hoppers hydraulically operated to deposit selected course material directly into the trench from a substantially vertical drop in substantially equal quantities from each side. At least one of the hoppers moves responsive to the movement of guide rails that follow the contours of the trench. A vertically adjustable strike-off plate, adapted to define a course level above or below the level of the surrounding paved surface, has two components, at least one of which moves relative the other responsive to the guide rails to accommodate trench width, and includes apparatus for laying down a window of paving material during a final pass and pushing it into a mini-trench created by intrusion of the guide rails.

Abstract: A vertical drainage element is constructed and laid in position while at the same time forming a narrow vertical channel in the ground by means of an excavating machine or trencher by performing the following successive operations:a strip of filtering material is unwound from a rotating roll of strip behind the trencher;the strip is introdued within the channel formed in the ground while being shaped in the form of a trough, the bottom of the trough being placed at the bottom of the channel while the side walls of the trough are placed against the channel walls;the top edges of the trough are held in position one against the other while filling the trough with bulk material in granular form which subsequently constitutes a vertical filtration block;the top edges of the trough of filtering material are closed on top of the completed block and are fastened together so as to form a closed jacket around the block.

Abstract: A grouting machine which has a grout dispensing means for depositing grout between prepositioned floor tiles and on the upper surfaces of the tiles and which contains a grout removal means for removing excess grout from the upper surfaces of the tiles. The remaining grout fills the spaces between the sides of the tiles. The grout removal means includes at least one pick-up assembly. An air conducting system is used for moving the remaining grout slurry to a storage tank by operation of a vacuum source. A diluent addition means is provided for use in the slurry formation means when needed.An application means is provided to assure the uniform deposit of grout into the cracks between the prepositioned tiles. A drive motor, vacuum pump and diluent pump are provided on the grouting machine for operation of the various means. The grouting machine and method for operating the same are disclosed.

Abstract: Apparatus is provided for applying a sealing composition to a road surface. The apparatus includes supply means for the sealing composition and an applicator having a pressure chamber having adjustable-gap exit openings adjacent the road surface and having doctor blades which, when appropriately set, apply the composition to the road surface to a uniform and preset thickness across the width of the applicator. The apparatus includes means for propelling the applicator over a road surface.

Abstract: This disclosure relates to an applicator for placing a sealant into a groove, and comprises a member having a lower side, the lower side being adapted to extend into the groove. The lower side has an arcuate shape and a sealant passage extends through the member and includes an outlet opening in the lower side. The arcuate lower side is adapted to extend partially into said groove and engage the upper corners of the groove during use. The applicator further includes a limiter attached to the member, the limiter extending laterally of the lower side and over the upper corners of the groove.

Abstract: Apparatus for sealing pavement joints or seams are disclosed. The apparatus includes a wheeled support platform which serves to mount a cylindrical storage container suitable for holding a selected amount of an asphaltic emulsion sealing composition. An applicator is coupled to the bottom of the storage container and controls are provided to selectively vary the volume of the stream of sealing composition and to permit the stream to be completely extinguished. In order to prevent the asphaltic emulsion sealing composition from breaking down or settling out during application an agitator device is provided which propels the sealing composition upward from the bottom of the storage container and mixes the sealing composition. In a preferred embodiment of the present invention the agitator device is gear driven in response to movement of the wheeled support platform.

Abstract: A pothole patching and roadway surface repair and paving machine is described having a mobile chassis frame mounted on wheels for transport over a roadway. The machine is formed with an elongate boom mounted on the frame at an upwardly directed angle with the lower end of the boom formed with an opening position for receiving repair material dispensed from a source. The boom is constructed and arranged with a boom conveyor extending internally the length of the boom for conveying repair material dispensed from the source to the top of the boom. The boom is mounted on the frame for movement right and left over a roadway surface on a vertical pivot axis and for movement of the boom up and down on a horizontal pivot axis for varying the upwardly directed angle of the boom. An elongate chute or hollow stick is pivotally mounted to the upper end of the boom at a downwardly directed angle.

Abstract: An adhesive filler apparatus is disclosed comprising an injector and a support portion, the injector comprising a pressure buffer tube made of elastic material and a check valve adjacent one end of the pressure buffer tube, the support portion comprising a base member and a projection. The adhesive filler apparatus disclosed is used as follows: An adhesive is fed through a hose connected to a pump, etc. in the pressure buffer tube, causing the tube to swell. The hose is disconnected from the injector, causing the check valve to close the end of the tube. The fed injector is coupled to the support portion fixed on the crack of a concrete structure, etc., whereupon the projection on the support portion presses the check valve to open the end of the fed tube, thereby allowing the adhesive in the tube to be filled in the crack by gradual and continuous contraction of the elastic tube.

Abstract: An adhesive filler apparatus is disclosed comprising an injector and a support portion, the injector comprising a pressure buffer tube made of an elastic material and check valves adjacent both ends of the pressure buffer tube, the support portion comprising a base member and a projection. The adhesive filler apparatus disclosed is used as follows: A hose connected to a pump is coupled to one end of the pressure buffer tube so that the nozzle of the hose presses the check valve to clear its closure, allowing an adhesive to be fed in the pressure buffer tube. The hose is disconnected from the fed and swollen tube, causing the check valve to close the end of the tube. The fed injector is coupled to the support portion fixed on the crack developed in a concrete structure, etc., whereupon the projection on the support portion presses the check valve to open the end of the tube, thereby allowing the adhesive in the tube to be filled in the crack by gradual and continuous contraction of the elastic tube.

Abstract: Apparatus for compressing an elongated strip of resilient material and inserting the strip, together with a flexible membrane, into a channel member supported on a substrate wherein the apparatus includes a frame assembly, supporting and moving structure for the frame assembly; pairs of converging roller assemblies for receiving and temporarily elastically deforming the strip of resilient material into an inverted V-shape; a grip wheel for gripping the apex portion of the inverted V-shaped strip and pushing at least a portion thereof, together with abutting portions of the flexible membrane, into the channel member; and a pressing tool for inserting the strip fully into the channel member and thereafter returning the strip to approximately its natural shape to thereby frictionally retain adjacent portions of the flexible membrane within the channel member.

Abstract: A method and apparatus for sealing pavement joints or seams is disclosed. The apparatus includes a wheeled support platform which supports an airtight container of sealant composition which hardens upon contact with the atmosphere. A second airtight container includes a supply of water or other liquid. An air compressor is mounted upon the wheeled support platform and compressed air is selectively coupled to the containers of sealant composition and water. An oil film on the surface of the sealant composition is utilized to prevent it from hardening while in the container. A third output of the air compressor and outputs in the water and sealant composition tanks are coupled to a wheeled applicator which is adapted to be moved over the pavement seam.

Abstract: A method for the deposition of filler materials in filling and overlay applications is disclosed in which there is provided a continuous forced flow of filler material from an external reservoir, which is released through an outlet positionable over a depression in a surface which has been prepared to be filled and overlaid with filler to fill the place of application and overlay the surrounding area. An apparatus for the deposition of such filler is also disclosed.

Abstract: The invention relates to a method for repairing ruptured longitudinal seams or cracks in road surfaces which consist of a thermoplastic material and particularly of an asphalt coating including bitumen and mineral constituents, by which, under the application of heat, new coating material is applied and consolidated in the area of the longitudinal seams or cracks, wherein at first mud and humidity is removed from, and out of, said longitudinal seam or crack, said longitudinal seam is subsequently softened by heating, said softened coating is loosened from the underground and is compounded with the new material and/or liquid or liquified aggregates and is finally incorporated and consolidated again.