Separate Handling Of Different Sized Aggregate Patents (Class 404/81)
  • Patent number: 9267249
    Abstract: The present invention relates to a work train, a device and a method for distance measurement between a transport device and a milling device. During the loading of a transport device with milled material from the milling device, the operator of the milling device normally transmits control commands to the transport device driver for coordination of the loading process. Through the automated distance measuring between the transport device and the milling device and control of a display device according to the present invention, this task is taken over from the operator of the milling device, who can concentrate on the actual milling process.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: February 23, 2016
    Assignee: BOMAG GmbH
    Inventor: Martin Simon
  • Publication number: 20110211909
    Abstract: A dual-hopper aggregate spreader for spreading a layer of loose aggregate onto a road surface usually consists of a receiving hopper for the loose aggregate, and two (dual) second dispensing hoppers. In the preferred embodiment the conveyance of the dispensing hoppers is facilitated, in conjunction with other mechanical apparatuses, by a minimum of two conveyance glides, instead of rollers, gears, sprockets, etc., attached to a stationary frame that carries and aids in the conveyance of the dual dispensing hoppers, a minimum of two conveyance glides attached to the dual dispensing hoppers that then come into direct contact with the aforementioned frame glides, and, lastly, a minimum of two —one per side—tracking glides attached to the dual dispensing hopper's sides immediately adjacent and perpendicular to the conveyance glides.
    Type: Application
    Filed: February 15, 2011
    Publication date: September 1, 2011
    Inventors: David William Pristupa, Donald Alexander Sheriff
  • Publication number: 20110070025
    Abstract: A vehicle mounted patching system for patching potholes and the like and incorporating method and apparatus for removing and flushing asphalt emulsion from the feed lines of the patcher which completely recycles the cleaning agent used to flush the feed lines, as well as eliminating any external discharge of potentially toxic materials. A cleaning agent is used to flush the feed lines. The emulsion is collected in a recovery tank and combined with fresh emulsion delivered from a storage tank when the collected emulsion reaches a given concentration. Electrical controls for operating both motors from a single power source employ arrays of cam-operated switches and a diode array polarized to prevent feedback of power from the power source to assure precision positioning of the multi-position valves to perform a given operation.
    Type: Application
    Filed: August 30, 2010
    Publication date: March 24, 2011
    Applicant: PATCH MANAGEMENT, INC.
    Inventor: Scott P. Kleiger
  • Patent number: 7607859
    Abstract: A method of surface seeded fine aggregate to produce simulated quarried stone. The method comprises preparing a subgrade, pouring a concrete mixture over the subgrate, and broadcasting one of fine sand and aggregate over 5% to 60% of an exposed surface of the concrete mixture. Alternatively, both the fine sand and the aggregate can be broadcast over 5% to 60% of the exposed surface of the concrete mixture to obtain a desired aesthetic effect as provided by the quarried stone.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: October 27, 2009
    Assignee: Lithocrete, Inc.
    Inventors: Ronald D. Shaw, Lee A. Shaw
  • Publication number: 20090136295
    Abstract: An apparatus and method for fragmenting and re-mixing agglomerated pieces of rubberized asphalt prior to applying same to a road surface. Agglomerated pieces and rubberized asphalt material are delivered to the upper portion of a housing. In a first embodiment, an auger and tine assembly having a common drive shaft, is mounted for rotation within the housing. The assembly includes first and second auger sections, mounted along the shaft in spaced relation and having converging, opposite handedness. A rotating tine section is positioned between the auger sections. A fixed tine section is mounted in the housing in interdigitized relation with the rotating tine section. In a second embodiment, the entire drive shaft includes a rotating tine section, and a corresponding interdigitized fixed tine section is provided within the housing. Passing through apertures defined by the fixed and rotating tine sections, agglomerated pieces are fragmented and re-mixed with the other material.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 28, 2009
    Inventor: Robert L. Boyd
  • Patent number: 7448825
    Abstract: A method for recycling in place an asphalt mixture layer of a paved road continuously, while moving a self-propelled vehicle system, which comprises a step of heating and softening the asphalt mixture layer, a step of scraping and breaking said hot and softened asphalt mixture layer and keeping the softened mixture at a temperature sufficient not to form an aggregate, to prepare an asphalt mixture having a single-grained structure, a sieving step of classifying said asphalt mixture having a single-grained structure into a plurality of grain size groups, a step of designing mix proportions for converting said asphalt mixture to a recycled asphalt mixture by the use of said plurality of grain size groups classified, a step of mixing uniformly said recycled asphalt mixtures having designed mix proportions, and a step of spreading and compacting said recycled asphalt mixtures having been mixed uniformly, to thereby form a recycled asphalt mixtures layer.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: November 11, 2008
    Assignees: Green Arm Co., Ltd., Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Kasahara, Shunsuke Ushio, Kojiro Ogata, Hiroshi Inamitsu, Fumio Goto, Tomoyuki Abe, Hiroaki Irie, Isami Fujii, Kazuo Onoda, Hideo Ikeda, Eisuke Nagai, Atsuki Gomi, Masaki Tsunabuchi
  • Patent number: 7322772
    Abstract: A method and a surface seeded exposed aggregate concrete product are provided that precisely simulate the appearance and qualities of various types of natural quarried stone, such as granite, marble, rhinestone, bluestone, and brownstone, to name a few. Implementations of the present invention are characterized by the use of fine sand and aggregate broadcast over the exposed surface of poured concrete, which surface has been prepared to receive the same. Subsequently, a surface retarder and finishing steps are performed to produce the concrete product which assimilates the characteristics and colors of natural quarried stone, such as speckles, inclusions, flecks, graining, fractures, joints, knots, crystallization patterns, streaks, weathering, etc.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: January 29, 2008
    Assignee: Lithocrete, Inc.
    Inventors: Ronald D. Shaw, Lee A. Shaw
  • Patent number: 6481922
    Abstract: An apparatus and a method for re-mixing size and weight segregated Hot Mix Asphalt (“HMA”) which is continuously discharging from a windrow elevator. The apparatus includes an auger assembly having first and second helical auger sections, mounted in spaced relation over respective ends of an auger connecting shaft. The first and second sections are of converging, opposite handedness. Owing to their orientation and handedness, the augers advance incoming material inwardly, toward a mixing zone, adjacent and around an intermediate portion of the connecting shaft. The apparatus also includes an auger housing, having an upper portion with a material inlet, and a lower portion with a material discharge. The auger assembly is mounted for rotation within the lower portion of the auger housing. The housing surrounds side, bottom and end portions of the auger sections. The material inlet is above and in communication with upper portions of the auger sections and the mixing zone.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: November 19, 2002
    Inventor: Robert L. Boyd
  • Patent number: 6394696
    Abstract: A road resurfacing device has a frame on which is mounted a ripper bar for ripping the road surface, to a controlled depth, and behind it a separator for separating coarse and fine material in the road surface such the coarse material is deposited on fine material. The frame is supported by rollers extending across the frame. The ripper bar has depending teeth in rows on both sides of the ripper bar and is rotatable so that either sets of teeth, which may be at different heights, rip the road surface. The separator is formed of ground turning discs mounted on angled shafts to direct material first to one side and then to the other. The ground turning discs rotate counter to the direction of movement of the frame. A method of resurfacing a gravel road includes ripping the surface of the gravel road to break up fine and coarse material near the surface of the gravel road; and separating coarse material from fine material such that coarse material is deposited on top of the fine material.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: May 28, 2002
    Assignee: Road Badger Inc.
    Inventor: Larry G. Culver
  • Patent number: 5788407
    Abstract: Described is a paving method of fine water-permeable concrete which can be used for roadways, sidewalks, bikeways, parking lots, public squares, etc. A base layer of water-permeable concrete is paved by spreading and pounding a sand filter layer and a rubble base layer on the consolidated ground to have porosity after pounding of 10-20% and a coefficient of water permeability of more than 10.times.10.sup.-2 cm/sec. A mixture of crushed waste glass, fine rubble, 250-500 kg/m.sup.3 of cement, water at a water-cement ratio of 25-40%, and a polymer in an amount of 10-50% of the weight of cement used based on 50% solid material is spread on the base layer and pounded. The concrete is aged for more than one day, a mixture of a polymer and water was sprayed on the base layer to be absorbed, after which aging is done to complete the construction.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: August 4, 1998
    Inventor: Ik Hyun Hwang
  • Patent number: 5642961
    Abstract: A method for desegregating and conveying aggregate includes reorienting aggregate from a side-by-side lateral orientation to a longitudinal orientation. The longitudinally oriented segregated aggregate may then be thoroughly desegregated in a second conveyor. Reorientation preferably occurs as the aggregate is conveyed along a drag slat conveyor which has a notch in the floor of its discharge end which causes larger aggregate at the lateral edges of the conveyor to drop out of the conveyor after smaller aggregate located between the lateral edges.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: July 1, 1997
    Assignee: Astec Industries, Inc.
    Inventor: Thomas R. Campbell
  • Patent number: 5553968
    Abstract: An apparatus and method for desegregating and conveying aggregate. A drag slat conveyor has a notch in the floor of its discharge end which causes larger aggregate at the lateral edges of the conveyor to drop out of the conveyor after smaller aggregate located between the lateral edges. The larger and smaller aggregate are thereby reoriented from a side-by-side lateral orientation to a longitudinal orientation. The longitudinally oriented segregated aggregate may then be thoroughly desegregated in a second conveyor.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: September 10, 1996
    Assignee: Astec Industries, Inc.
    Inventor: Thomas R. Campbell
  • Patent number: 5533829
    Abstract: A paving machine is described which includes: a gravity feed hopper located near a front end of a chassis; a distributing auger mounted on the chassis near the rear end thereof and extending transversely across the chassis; a remixing device including a variable-pitch screw auger with i) a first flight section and ii) a second flight section, the second flight section being located transversely between a lower discharge opening of the hopper and the first flight section, the pitch of the first flight section being lower than the pitch of the second flight section so that volumes bounded by flights of the second flight section are greater than volumes bounded by flights of the first flight section, so as to enable finer paving materials, located in a transverse central portion of the hopper to enter void spaces in volumes bounded by flights of the second flight section and combine with coarser paving material, thereby remixing segregated paving materials; and a discharge conveyor assembly extending longitudina
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: July 9, 1996
    Assignee: Astec Industries, Inc.
    Inventor: Thomas R. Campbell
  • Patent number: 5494373
    Abstract: A process for paving a surface of a sub-base with compactable asphaltic concrete comprising aggregates and an asphaltic cement to provide a finished asphaltic pavement having dormant zones of potential fracture at predetermined locations. The process comprises the steps of forming a continuous mat of compactable asphaltic paving concrete having a predetermined thickness on the surface of a sub-base; creating dormant zones of potential fracture at predetermined locations in the mat prior to compacting the compactable asphaltic paving concrete; and compacting the mat of compactable asphalt concrete to seal the dormant zones and provide a finished asphaltic pavement of predetermined density having a smooth traffic bearing top surface with the sealed dormant zones of potential fracture substantially concealed therein.The invention also includes the finished asphaltic pavement produced by the process of forming a mat of compactable asphaltic paving concrete on the sub-base surface.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: February 27, 1996
    Inventor: Thomas R. Amon
  • Patent number: 5480256
    Abstract: A method for the preparation, placement, and compacting of fibrous concrete material components laid onto an object which consists of forming on a conveyor a sandwich consisting of sequential layers of a mortar component, long fibers, coarse aggregate, directing the sandwich onto the surface of large-diameter rotor (113), converting the components of the sandwich into a controllable flow (F), directing a part of the components onto the object (O) and a part onto a second small-diameter rotor (115) having blades (115a) longer in the radial direction than blades (113a) of the rotor (113), and controlling the direction, speed, density distributions, and distribution of the flow components by adjusting the amount of short fibers added to the flow and by introducing into the flow a third rotor (116). The apparatus for the realization of the method contains a three-rotor-type dispenser with the third rotor (116) pivotal with around the center of rotation of the second rotor (115).
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: January 2, 1996
    Inventors: Boris Itsekson, Michael Dyuzhenko, Vladimir Itsekson, Alexander Itsekson, Igor Tsigelman
  • Patent number: 5405440
    Abstract: A method of producing a cold mix asphalt paving composition by:(a) separating non-asphalt impurities from an asphalt rubble obtained from a reclaimed asphalt pavement to produce a purified asphalt rubble;(b) comminuting said purified asphalt rubble to obtain sized asphalt-aggregate mixture;(c) testing said sized asphalt-aggregate mixture to determine the percent of asphalt present in said asphalt-aggregate mixture; and(d) blending an asphalt emulsion with said asphalt-aggregate mixture in an amount so as to yield a cold mix asphalt pavement composition comprising from about 4.0% to about 6.5% by weight of asphalt.The cold mix asphalt paving composition is used to coat roadway surfaces, parking lots, driveways, and the like. Once the cold mix asphalt paving composition has been applied to a surface, a top coat may be overcoated onto the cold mix asphalt pavement.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: April 11, 1995
    Assignee: Global Resource Recyclers, Inc.
    Inventors: Harold C. Green, Daniel J. Shaw
  • Patent number: 5183354
    Abstract: The present invention relates to a process for in situ recycling of aggregate surfacing used in power substations. An unsuitable aggregate surfacing contains a mixture of coarse and fine aggregate which results in an undesirably low surface resistivity. The first step of the process is to remove the unsuitable surfacing to a depth of approximately four to eight inches, thereby exposing an area of subgrade. The fine aggregate is then separated from the coarse aggregate. Next, the fine aggregate is replaced on the exposed area of the subgrade and compressed. Finally, the coarse aggregate is replaced on the fine aggregate. The process efficiently recycles the aggregate surfacing while on site at the substation, thereby eliminating the high cost of purchasing and transporting new aggregate surfacing, and disposing of unsuitable aggregate surfacing.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: February 2, 1993
    Assignee: SCM Consultants, Inc.
    Inventors: Roger G. Wright, Leon J. Lindbloom, Lewis C. Midlam
  • Patent number: 5106228
    Abstract: The invention relates to a multicourse surfacing for pavements, in particular for pavements whose base courses are cracking, and to a method for the production of this surfacing. The surfacing according to the invention, comprising an asphaltic membrane applied to the base course of the pavement and a waring course or binder course, comprises, between the asphaltic membrane and the wearing course or binder course, at least one layer of cold mix. The method comprises applying successively to the base course of the pavement, optionally covered with a primer layer:a layer of asphaltic binder,by cold spreading, a layer of a composition containing an asphaltic binder and a granular material,a wearing course or binder course. These surfacings are particularly effective for slowing the ascent into the wearing course of cracks forming in the base course of the pavement.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: April 21, 1992
    Assignee: Enterprise Jean Lefebvre
    Inventor: Maurice Vivier
  • Patent number: 5035534
    Abstract: An apparatus provided with a hopper having a capacity substantially equal to the capacity of a supply truck for receiving asphalt-aggregate material. A transversely disposed screw auger is provided for remixing the asphalt-aggregate material in the hopper prior to its discharge. In one form of the invention, the apparatus forms part of a self-propelled storage vehicle which transfers the material from the supply truck to a conventional finishing machine.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: July 30, 1991
    Assignee: Barber-Greene Company
    Inventors: James D. Brock, Donald W. Smith
  • Patent number: 5000615
    Abstract: A system for removing and relaying asphaltic concrete pavement using a planer pulling a laydown machine and pushing equipment for (a) screening the cuttings produced by the planer, and (b) mixing the screened cutting, with a suitable binder, wherein the mix is conveyed back to the laydown machine.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: March 19, 1991
    Assignee: CMI Corporation
    Inventor: Stuart W. Murray
  • Patent number: 4826350
    Abstract: A soil, which has been regulated in particle-diameter, is blended with a hydraulic material and water or an aqueous solution of synthetic resin emulsion, so that a moisture content may be 1.2 to 1.5 times an optimum soil compacting moisture content, and then stirred and followed by subjecting to a rolled fill which is followed by watering or spreading an aqueous solution of a soil-agglomerating agent on the mixture, which was subjected to the rolled fill, at least one time within 1 to 5 days after the completion of the rolled fill and further watering at least one time within 7 to 21 days after the completion of the rolled fill respectively, whereby an ideal sportssurface and the like showing not only a water-permeability but also a preferable compression strength and bending strength and showing no frost heaving is obtained.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: May 2, 1989
    Assignee: Nisshoku Corporation
    Inventor: Hiroyuki Kambe
  • Patent number: 4818139
    Abstract: An apparatus and method for delivering asphalt-aggregate material from a plurality of supply trucks to a finishing machine. In a preferred form of the invention the hopper of the finishing machine is modified to have a capacity substantially equal to the capacity of one of the supply trucks. The apparatus is a self-propelled storage vehicle including a hopper having a capacity substantially equal to the capacity of one of the supply trucks, a high capacity loading conveyor, and a high capacity unloading conveyor system. A transversely disposed screw auger is provided for remixing the asphalt-aggregate material in the hopper prior to its discharge to the finishing machine. In the first method of operation the storage vehicle shuttles between the finishing machine and a remote location of the supply trucks and in the second method of operation the storage vehicle travels in tandem with the finishing machine as the paving operation is performed.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: April 4, 1989
    Assignee: Barber-Greene Company
    Inventors: James D. Brock, Donald W. Smith, John P. Renneck
  • Patent number: 4728683
    Abstract: Ethylene-vinyl acetate copolymers having a melt index of 700-10,000 and a vinyl acetate content of from 1-40% by weight (based on the copolymer) are used as components of bitumenous binder compositions for the surface dressing of roads to improve the temperature range of their operability, the particular EVA's are also found to have good compatibility with the types of bitumen used.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: March 1, 1988
    Assignee: Exxon Research & Engineering Co.
    Inventors: Jozef A. F. Smits, Marc P. Plaindoux
  • Patent number: 4619550
    Abstract: Fragmented old asphaltic concrete or the like is recycled into new hot-mix by temporarily separating larger pieces from the smaller fragments, generating heat internally within the large pieces with penetrating microwave energy, separately heating the smaller fragments by exposure to hot gas, and then recombining and remixing the separately heated components. The old concrete can be heated very rapidly, highly uniformly and economically while avoiding asphalt degradation and pollution problems that can be caused by exposure to extreme high temperature and while avoiding the relatively high costs of heating the entire volume with microwave energy.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: October 28, 1986
    Assignee: CD High Technology, Inc.
    Inventor: Morris R. Jeppson
  • Patent number: 4222787
    Abstract: A process for preparing an improved asphalt mixture by adding coal materials thereto. Low carbon content coal materials are separated into first and second portions, the first portion being soft-burned at approximately 600.degree. F., and the second portion being exposed to a number of wetting and drying cycles, followed by a thorough leaching. The first and second portions are crushed and screened to produce a fine particulate coal material having a maximum diameter passing through a 200 mesh screen, and a larger size coal material having a maximum diameter of 3/4 of an inch. In a first embodiment, an asphalt paving material is produced by adding the fine particulate coal materials to an asphalt/aggregate mixture in a proportion of approximately 75% of the first portion and approximately 25% of the second portion of the fine particulate coal materials, such that the coal materials equal approximately 6 to 8% by weight of the total mixture. The resulting asphalt mixture is heated at approximately 300.degree.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: September 16, 1980
    Inventor: Cyril T. Jones
  • Patent number: 4145154
    Abstract: A process of making and spreading, on a highway, a non-skid highway surfacing composed of aggregates mixed in a bituminous binder, according to which aggregates mixed in molten asphaltic bitumen are prepared, which are screened at the same time as they are spread, with the result that a relatively thick surfacing carpet is obtained which is composed of two superposed layers, the top layer of which is constituted by the chips retained by the screen.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: March 20, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Claude M. Mingot
  • Patent number: 3965281
    Abstract: Surfaces of roads, bridges, floors, etc., are easily paved by using a mixture of at least one of granular, powdery and flaky asphalt material and a suitable paving aggregate and applying heat and press thereto at the working site.
    Type: Grant
    Filed: September 20, 1973
    Date of Patent: June 22, 1976
    Assignee: Mitsuboshi-Sangyo Co., Ltd.
    Inventors: Takashi Takase, Tsunekazu Hayashi, Hirokazu Saitoh