Abstract: A method for repairing asphalt pavement involves passing an emitter over a surface of a damaged asphalt pavement comprising aged asphalt, wherein the emitter comprises a birefringent material through which the electromagnetic radiation generated by the emitter passes, wherein the emitter generates electromagnetic radiation having a wavelength of from about 2 microns to 1 millimeter, the radiation penetrating into the pavement to a depth of at least 2 inches, wherein a temperature differential throughout a top two inches of pavement is 100° F. or less, wherein a highest temperature in the top two inches of pavement does not exceed 300° F., and wherein a minimum temperature in the top two inches of pavement is at least 200° F.
Abstract: The invention relates to a self-propelled construction machine, for example, a road finisher, comprising a vehicle chassis and having a tandem axle unit and a single wheel on each side of the vehicle, wherein each tandem axle unit comprises a twin axle carrier and also a regulating device, by means of which the twin axle carrier can be pivoted relatively to the vehicle chassis. Each tandem axle unit is mounted on a lever arm, which is mounted for rotation about a pivot axle on the vehicle chassis, and which is engaged by the regulating device.
December 11, 2013
Date of Patent:
September 1, 2015
Irina Hagen, Hermann Christ, Moritz Nick
Abstract: An apparatus for flattening a half-dry concrete floor includes a plurality of pressure rollers arranged such that axes of them are parallel with one another in an imaginary plane, a holder rotatably supporting the pressure rollers at opposite ends of the pressure rollers, an oscillation-transmitter formed integral with the holder for transmitting oscillation to the pressure rollers, and an oscillator for oscillating the oscillation-transmitter.
Abstract: Rolling apparatus for rolling of turf or grass surfaces is provided which includes a mobile main frame (11) and at least three undercarriages (61, 62, 63) attached to the main frame (11). Each undercarriage has one or more smoothing rollers (64) in the form of idler rollers; there is further provided a control frame for each of the undercarriages (61, 62, 63) pivotally mounted to each undercarriage with one (63) of the at least three undercarriages located rearwardly or forwardly of the other two (61, 62) undercarriages in a direction of travel of the rolling apparatus. In the direction of travel, each undercarriage is located adjacent to each other presenting substantially no gaps in a front view between adjoining undercarriages or smoothing rollers attached to the undercarriages.
Abstract: A turf device driven by a traction drum. The traction unit is connected to the tool by an articulable joint which allows the traction unit to rotate horizontally (yaw) and vertically (pitch), as well as roll side-to-side in relation to the tool. The articulation allows the tool and the traction unit to follow undulations in the terrain separately and allows the mobile object to turn by yawing the traction member in relation to the tool.
February 10, 2009
Date of Patent:
December 14, 2010
Precise Path Robotics, Inc.
Elden Douglas Traster, Michael E. Harrison, Jason L. Zielke
Abstract: A powered rotary screed has a plurality of interchangeable modules of different lengths so that the power screed can accommodate various sizes of screed jobs. Additionally, the rotary screed comprises a centrally located expansion member that can be adjusted to cause an upper ridge member of the rotary screed to expand outward, thus raising a medial portion of the roller screeds so that they may be adjusted to maintain horizontal alignment. The screed is propelled by drive tubes that are supported by drive modules and powered by hydraulic motors. The screed further comprises a two-section strike tube which is likewise powered by a hydraulic motor. An operator rides in an operator's station and controls the speed and direction of the rotary screed. The drive tubes include a leading drive tube which is vertically adjustable to adjust the amount of pressure of the strike tube upon the concrete form.
Abstract: A triple roller tube concrete finisher that uses rotating tubes to strike-off, screed and finish concrete. The machine rides upon concrete forms and comprises a box-like, generally parallelepiped, frame supported by a plurality of rotary rollers. The frame houses an engine, cleaning system and a hydraulic system. The engine powers the hydraulic system that rotates the rollers. Two of the rollers provide locomotion to the machine while simultaneously screeding and finishing concrete the machine moves over. Preferably, these drive rollers are bidirectional to facilitate forward and rearward movement of the finishing machine. One of the rollers functions like a strike-off to prevent ride up. This roller rotates counter to the drive rollers to grade and displace excess unlevel concrete away from the leading edge of the machine. Preferably, the vertical height of the strike-off roller and its axis of rotation may be adjusted to vary the resulting depth of the concrete passing thereunder.
Abstract: Rolling apparatus (10) for rolling of level surfaces of turf or grass including a mobile main frame (11) and an undercarriage (12) having at least three ground contacting rollers (37, 38, 40) which are all unevenly spaced.
Abstract: A screeding machine has mounted thereon, in order from front to rear, a paving material agitating means for dispersing and expelling trapped air, a screeding roller, and first and second drive rollers. For a fine finish, a finishing roller extends from the rear of the machine.
Abstract: A screeding machine has mounted thereon, in a trailing position, a finishing roller 51 which is driven at a rotational speed sufficient to impart a polish or patina to the surface of the paving material.
Abstract: A novel asphalt compacting machine of the type having a chassis, a drive roller, e.g. at the rear, and a steerable rolling compaction mechanism, e.g., at the front, is provided herein. The improvement resides in a novel front, preferably steerable, rolling compaction mechanism which comprise two longitudinally-spaced-apart tandem rigid drums, preferably free-wheeling, extending across the entire lateral width of the chassis, the drums entraining an elastomeric, e.g. rubber, asphalt-compaction belt therearound. A lower means, e.g. a flat plate, is operatively associated with the rolling compaction mechanism and is disposed between the rigid drums to engage substantially the entire bottom inner surface of the belt between the two rigid drums. In this way substantially the entire outer bottom surface of the belt between rigid drum is urged downwardly into pressure contact with the asphalt being compacted, thereby to provide a flat, pressure-applying surface.
Abstract: A trench compaction device adapted for mounting on construction and excavation type equipment. The device having a sheepsfoot open-rim wheel design which is static rather than vibratory and uses the down pressure of the equipment to achieve standard density compaction requirements.
Abstract: The present invention provides a roller comprising a first frame, generally parallel first and second roll means mounted to the first frame for rotation about axes which, in one position of the first frame, lie in a generally horizontal plane, a second frame, a third roll means mounted to the second frame for rotation about a generally horizontal axis, and means mounting the first and second frames together for rotation relative to one another about a generally vertical axis whereby steering of the roller may be effected.
Abstract: A machine for uniformly applying a pressure on a relatively flat surface includes a portable frame structure and at least one frame supporting roller rotatably mounted on an axle by a pair of spaced journal assemblies. Each journal assembly has an upright bracket member with a top end secured to the underside of the frame structure, and an upright guideway in which the body portion of a bearing member, for rotatably supporting one end of the roller axle, is guidably movable. Flanges laterally extended from opposite sides of each bearing body portion are positioned between an associated bracket member and adjacent side of the roller. Each flange is formed with a fulcrum portion that is in contact engagement with the adjacent side surface of an associated bracket member for pivotal movement of the bearing member in response to a lateral tilting movement of the roller.
Abstract: A roller for treating earth and pavement surfaces includes two steering and surface treating drums arranged one after the other and skewed in opposite directions relative to the line of roller travel.
Abstract: A portable vibratory compacting machine for compacting and flattening a poured floor covering. The machine includes a generally horizontal frame including a pair of depending flanges on its opposite sides. A plurality of transversely aligned rollers are rotatably mounted by the longitudinal flanges for contacting the floor and supporting the weight of the machine. A reversible handle is provided so that the machine can be pushed or pulled in either direction, and a vibratory motor is secured to the top of the frame for vibrating the rollers. A plurality of transverse strengthening channels are connected to the frame to evenly distribute the vibratory forces across all of the rollers.
Abstract: A vibratory ground roller composed of a main frame carrying a plurality of rolling drums one in front of the other and a steering frame attached to the back of the main frame has the steering frame connected to the main frame by a plurality of links forming a pivoted link system each link of which is pivotally connected at its front end to the main frame and its back end to the steering frame and the system is so arranged that when the main frame pitches, the resulting horizontal movements of the pivots of the rear ends of the links to the steering frame are at least substantially equal to each other.
September 9, 1974
Date of Patent:
May 25, 1976
Adolf Bosslet, Jost Schieche, Hans Scharenberg, Gulertan Vural, Herbert Roos