Heating Patents (Class 404/79)
  • Patent number: 10081920
    Abstract: A method for installing hot asphalt pavement includes heating an aggregate to a temperature of from about 350° F. to about 400° F. using an emitter comprising a birefringent material, the emitter generating electromagnetic radiation having a wavelength of from 2 microns to 1 millimeter, wherein the aggregate is a recycled asphalt pavement; adding the aggregate to an asphalt in a mill to yield a mixture of aggregate with baked-on asphalt; laying the mixture down over a base to form a first layer of lift; and compacting the first layer.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: September 25, 2018
    Inventor: William B. Coe
  • Patent number: 9273433
    Abstract: A working machine for use in milling the surface of a road includes a drive engine that produces engine exhaust gases. The working machine also includes a milling drum that is mounted for rotation against the surface of the road so as to generate milled material including dust from the road surface. The milling drum is contained within a milling chamber, and a spray assembly directs water into the milling chamber in such a manner that, during a period of rotation of the milling drum against the surface of the road, at least a portion of the water is converted to a vapor. A conduit is provided for conducting at least a portion of the engine exhaust gases into an enclosed space in communication with the milling chamber to raise the temperature of a gas stream therein containing vapor and dust from the milled material.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: March 1, 2016
    Assignee: Roadtec, Inc.
    Inventor: Joseph E. Musil
  • Patent number: 9078342
    Abstract: An external control stand for controlling at least one working component of an self-propelled construction machine comprises at least one display panel and a plurality of input elements, the external control stand comprising at least one mounting section to mount it to the construction machine. The external control stand is characterized in that it comprises a lower shell, an upper shell, and an impact protection, the impact protection being configured to be in contact with the lower shell and the upper shell.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: July 7, 2015
    Assignee: JOSEPH VOEGELE AG
    Inventors: Achim Eul, Martin Buschmann
  • Publication number: 20150125206
    Abstract: A mobile asphalt production machine which includes support for different asphalt concrete recipes including a plurality of aggregate storage bins which work on combination with a fines or sands storage bin. The individual bins have separated feeding chutes to the mixing trough. The machinery also includes a removable pan at the elevator transfer station to accommodate changeover from one grade aggregate material to another. Further, a controller is provided which delivers appropriate ingredients while also measuring process parameters to adjust various input requirements. Further, a dust and particulate recapturing system is provided which recycles particulate matter back into the ribbon of mixed material with a binding agent.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 7, 2015
    Inventors: Jerry L. Warlow, David E. Peirce, Boris Fridman
  • Patent number: 9022686
    Abstract: The present invention provides a system and method for controlling an asphalt repair apparatus. An additional aspect of the present invention is to provide a system that may position a heater repair element adjacent a targeted asphalt surface, acquire and analyze surface and heater sensing data, and control heater output to prepare the targeted asphalt surface for repair. Further, the system may be configured to control an asphalt repair apparatus to satisfy user-defined asphalt repair requirements.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 5, 2015
    Assignee: Heatwurx, Inc.
    Inventors: Stephen Douglas Garland, Edmond Joseph Limoge, William Petrow, John Edward Cronin
  • Patent number: 8961064
    Abstract: A screed system is provided. The screed system includes a base screed. The screed system includes an extension member, wherein the extension member is detachably coupled to the base screed. The screed system also includes an identification module associated with the extension member. The identification module is configured to provide an indication of the extension member. The screed system further includes a controller, wherein the controller is configured to determine a parameter associated with the extension member based on the indication. Further, the identification module and the controller are configured to communicate with each other.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: February 24, 2015
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Igor S. Ramos, Robert W. Lindsey, LaTanya G. Turner, Daniel Podany
  • Publication number: 20150003910
    Abstract: The present invention provides an asphalt brick device and method of manufacture, the asphalt brick device used for repairing potholes and other roadway deformities, as provided in the present invention. An additional aspect of the present invention is to provide an asphalt brick device that is of predictable and readily-varied composition that reflects the characteristics of the targeted repair site, ambient conditions, logistical requirements such as delivery and sizing of the material, and operational requirements. Further, the asphalt brick device may be configured to be stackable to satisfy user-defined asphalt repair delivery and ordering requirements.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Stephen Douglas Garland, Benjamin Shields Taylor, John Edward Cronin, Richard Paul Giles
  • Patent number: 8845234
    Abstract: A microwave ground or road surface heating system that eliminates the need for preparation of the surface to be heated while preventing leakage of microwave radiation. The highly portable microwave heating system prevents leakage of microwave radiation via a microwave horn and sealing shroud configuration that seals the unit to the surface being heated.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: September 30, 2014
    Assignee: Microwave Utilities, Inc.
    Inventor: Vernon R. Hegg
  • Publication number: 20140286705
    Abstract: The present invention provides a functionally dry warm mix asphalt binder composition modified with lubricating agents or additives that can be mixed with aggregate and compacted at temperatures substantially below asphalt binder compositions that do not contain the disclosed lubricating additives.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicants: ERGON ASPHALT & EMULSIONS, INC., ALM HOLDING COMPANY
    Inventors: Gerald H. Reinke, Gaylon L. Baumgardner, Steven L. Engber
  • Patent number: 8834063
    Abstract: It is intended to allow an asphalt pavement to be peeled off efficiently with a relatively small amount of electric power without generating large vibration and noise, and handled in the form of a block. An electromagnetic induction coil 36 is positioned above an asphalt pavement 22 provided on a copper plate (12) to melt a lower surface of the asphalt pavement 22. Then, a wedge-shaped thermally-conductive peeling member 60 having a peeling layer formed on an upper surface thereof is inserted into a melted layer (74) of the lower surface of the asphalt pavement 22 to peel off the asphalt pavement 22 from the steel plate 12. This makes it possible to peel off the asphalt pavement 22 with a relatively small amount of electric power and handle the peeled asphalt pavement 22 in the form of a block.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: September 16, 2014
    Assignee: Green Arm Co., Ltd.
    Inventors: Kenichi Harakawa, Hidetoshi Hayashida, Seiichi Takeuchi, Koutaro Tohyama, Shinsuke Wakabayashi
  • Publication number: 20140248082
    Abstract: A meltable crack sealant package that includes a polymeric container and a crack sealant material contained therein. The polymeric container includes a bottom portion including a rigid base and an upwardly extending rigid sidewall that terminates in and define an opening. The rigid base and upwardly extending rigid sidewall cooperate to define a reservoir. A rigid lid portion operatively engages with the bottom portion to close off the opening and thereby seal the crack sealant material within the reservoir in a watertight manner. Methods of making and using the meltable crack sealant package are also disclosed.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 4, 2014
    Applicant: P & T PRODUCTS, INC.
    Inventors: Jennifer Findley, Derek Dranichak
  • Patent number: 8814467
    Abstract: A flame safety system for a thermoplastic applicator comprises a gas burner and a flame indicator. The gas burner expels a jet of pressurized combustible gas from an outlet nozzle, and includes an attachment groove near the nozzle. The flame indicator includes an attachment ring configured to fit into the groove, thereby securing the flame indicator to the gas burner, and a flame path portion extending from the attachment ring into the jet of pressurized combustible gas. The flame path portion is formed from a material which incandescently glows whenever the jet of combustible pressurized gas is lit.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: August 26, 2014
    Assignee: Graco Minnesota Inc.
    Inventors: Charles W. Dawson, Barry W. Mattson, Thomas L. Triplett, Steven H. Fredrickson, Christopher A. Lins
  • Patent number: 8801325
    Abstract: The present invention provides a system and method for controlling an asphalt repair apparatus. An additional aspect of the present invention is to provide a system that may position a heater repair element adjacent a targeted asphalt surface, acquire and analyze surface and heater sensing data, and control heater output to prepare the targeted asphalt surface for repair. Further, the system may be configured to control an asphalt repair apparatus to satisfy user-defined asphalt repair requirements.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: August 12, 2014
    Assignee: Heatwurx, Inc.
    Inventors: Stephen Douglas Garland, Edmond Joseph Limoge, William Petrow, John Edward Cronin
  • Publication number: 20140154009
    Abstract: An asphalt composition comprising aggregate, bitumen, sulphur and an anionic surfactant is disclosed, wherein the amount of anionic surfactant is from 0.05 wt % to 10 wt %, based upon the weight of the sulphur. Methods of preparing asphalt compositions and asphalt pavements are also disclosed.
    Type: Application
    Filed: May 23, 2012
    Publication date: June 5, 2014
    Inventors: Sunil Ashtekar, Franciscus Gondulfus Anton Van Den Berg, Majid Jamshed Chughtai, Marinus Johannes Reynhout, Govind Wagle
  • Publication number: 20140131347
    Abstract: An apparatus and method for small scale heating of an asphalt material suitable for repair and/or resurfacing of paved surfaces, most preferably where the material is placed in a small microwavable container.
    Type: Application
    Filed: May 21, 2013
    Publication date: May 15, 2014
    Applicant: CRIUS TECH LLC
    Inventor: Mark ELIOT
  • Publication number: 20140133907
    Abstract: A hot recycling heating method for old asphalt mixture, includes the steps of: mixing old asphalt mixture with hot asphalt, with the temperature of the hot asphalt being higher than the temperature of the old asphalt mixture, but not higher than the standard temperature of heating asphalt; and heating the old asphalt mixture by heat exchange between the hot asphalt and the old asphalt mixture.
    Type: Application
    Filed: July 3, 2012
    Publication date: May 15, 2014
    Inventor: Qiang Su
  • Patent number: 8714869
    Abstract: A pneumatic compactor includes a frame and a compacting member rotatably coupled to the frame and configured to rotate in contact with a substrate of paving material. The compacting member is a tire. The compactor further includes a heating element located within the compacting member, a sensor thermally coupled to the heating element, and an electronic control module. The electronic control module is in communication with the heating element and the sensor and is configured to energize the heating element.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: May 6, 2014
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Michael W. Ries, Matthew S. Frantz, Jon M. Scharf, Paul D. Weiss
  • Publication number: 20140119828
    Abstract: An integrated heating and comb unit and method of mechanized asphalt raking that provides a consistent and efficient alternative to the traditional manual raking methodologies.
    Type: Application
    Filed: September 3, 2013
    Publication date: May 1, 2014
    Inventor: Michael Rees
  • Patent number: 8668405
    Abstract: An improved road maintenance truck includes a pair of hydraulically powered roller assemblies mounted to the underside of the vehicle frame and a vertically movable compression plate mounted to the vehicle frame. Each roller assembly has a compressive roller which runs the width of the truck. Two hydraulic actuators on each end of the vehicle raise and lower the roller into place. These independent rollers allow a road patching crew to selectively lower the roller for repairing road while initially flattening the patching material with the front roller and compacting the patching material with the rear. The compression plate is mounted to an actuator which selectively raises and lowers the compression plate to compress road patching materials. A roller heating system draws engine coolant through the rollers to heat the rollers and to reduce the heat built-up in the engine.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: March 11, 2014
    Inventor: William Singleton
  • Patent number: 8662789
    Abstract: A paver includes an enclosed furnace for melting an inorganic paving material and a carriage for carrying the furnace. The furnace includes a heating chamber for receiving the paving material, a heater for heating the heating chamber to a temperature greater than 1,600° C. to melt the paving material, and an outlet for discharging melted paving material to form a paved road surface.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 4, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Yuchen Ma
  • Patent number: 8636442
    Abstract: A paving machine for laying a mat of paving material on a paving surface includes a generator, such as a switched reluctance generator, integrally installed with a pump drive and operatively connected to an output shaft of a power source of the paving machine. The generator outputs AC power to a power converter that in turn outputs DC power for a plurality of screed heating elements to produce heat to warm a screed. The paving machine may also include an insulation monitoring system for determining the occurrences of ground faults in the electrical components by comparing current levels in the components to a predetermined maximum current level. A controller of the paving machine may monitor the temperature of the generator and produce the speed of the power source to prevent overheating.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: January 28, 2014
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Thomas M. Sopko, Jr., Ryan T. Thiesse, Robert J. Lord, Toby A. Frelich, Edward Lee Zwilling, Robert Wayne Lindsey, Rodwan T. Adra
  • Publication number: 20140010592
    Abstract: A thermic torpedo for preparing and delivering reinstatement materials has an internal chamber defining at least one compartment for containing graded aggregate and a second compartment for containing a stabilising agent, an external skin for insulating the contents of said internal chamber, a cap or lid for securely containing the contents of the torpedo in which is located at least one telescopic probe which can be driven through the compartments to heat and/or mix the contents thereof and at least one aperture through which the reinstatement materials may be expelled for delivery to a work site.
    Type: Application
    Filed: October 16, 2011
    Publication date: January 9, 2014
    Inventor: James Wright
  • Patent number: 8591140
    Abstract: A product and method for repairing holes and cracks in roads, parking lots, sidewalks and other similar surfaces using a mixture of powder coating (i.e. dry paint) and a filler. The first step is to obtain the powder coating material. Any suitable powder coating material may be used, however, it is preferable to use the excess or waste powder coating material obtained from a powder coating operation. The next step is to mix the powder coating material with a filler, such as sand, pea gravel, or another suitable material. After the components are mixed together, it is applied to a surface needing repair such as a pothole in a road or a crack in a sidewalk. The mixture is cured by heating the mixture to the point where the powder coating melts and binds the powder coating with the filler and the surface needing repair. It may be cured before or after it is applied to the surface needing repair. After the mixture cures, the result is a high quality patched surface.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: November 26, 2013
    Inventor: Duane J. Laffey
  • Patent number: 8568058
    Abstract: In electrically heated screed assemblies, elements that are prone to failure are the temperature sensors. Typically, each screed plate has a single temperature sensor. When one temperature sensor fails, the controller will look for a working temperature sensor amongst the other screed plates and if more than one temperature sensor is working, the controller will choose the most relevant temperature sensor and use the data from the working temperature sensor to operate the resistive heating elements on the screed plate with the non-functional temperature sensor. If the temperature sensor on an outer screed plate fails, the controller will look to the other outer screed plate temperature sensor for data for purposes of operating the resistive heating elements on the outer screed plate with a broken temperature sensor.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: October 29, 2013
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Jameson M. Smieja
  • Patent number: 8562246
    Abstract: A process for producing an asphalt layer in which material with properties that deviate from predetermined requirements is specifically homogenized, and a paving train (10), a road paver (12) and a feeder (14) for carrying out the process.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 22, 2013
    Assignee: Dynapac GmbH
    Inventors: Ronald Utterodt, Marcus Utterodt, Klaus-Dieter Bunk
  • Publication number: 20130259571
    Abstract: A method and various apparatus are provided for assisting braking in a paving machine having hydraulically driven ground engaging elements driven by a hydraulic motor, and one or more screed electrical heating elements powered by a generator. In the event that the application of the machine deceleration system occurs at a machine speed exceeding a predetermined threshold value, the hydraulic motor of the drive train is configured to drive the hydraulic pump of the hydraulic system. The hydraulic pump is linked to the system generator to generate electrical power to drive the one or more screed electrical heating elements at a current greater than the current previously being provided to the one or more screed electrical heating elements.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 3, 2013
    Applicant: Caterpillar, Inc.
    Inventors: Ryan T. Thiesse, Toby A. Frelich
  • Patent number: 8529152
    Abstract: A method and various apparatus are provided for assisting braking in a paving machine having hydraulically driven ground engaging elements driven by a hydraulic motor, and one or more screed electrical heating elements powered by a generator. In the event that the application of the machine deceleration system occurs at a machine speed exceeding a predetermined threshold value, the hydraulic motor of the drive train is configured to drive the hydraulic pump of the hydraulic system. The hydraulic pump is linked to the system generator to generate electrical power to drive the one or more screed electrical heating elements at a current greater than the current previously being provided to the one or more screed electrical heating elements.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: September 10, 2013
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Ryan T. Thiesse, Toby A. Frelich
  • Patent number: 8356958
    Abstract: In a paver F comprising a combustion engine M, in particular a diesel engine, of a primary driving aggregate P, functional units having hydraulic pumps 23, 30 to 33 inclusive a travel pump aggregate 23 which can be driven by the combustion engine M for supplying at least one travel drive 16, a generator G for supplying electric heating devices H of the paver F and/or of a paving screed B of the paver F with electric power, the generator G is driven permanently while at least one pump 23, 30 to 33 selectively can be disconnected from the combustion engine via at least one shiftable clutch K1, K2, K3. During a heating-up phase of electric heating devices H via the permanently driven generator G at least one of the pumps is disconnected. During transport travel at least one pump of the functional units, except the permanently driven travel pump aggregate 23 and the generator G, is disconnected.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: January 22, 2013
    Assignee: Joseph Vögele AG
    Inventors: Arthur Braun, Christian Pawlik, Thomas Schmidt
  • Patent number: 8336146
    Abstract: A forced air heated mat including a parallelepiped central pad connected to a ramp, a first side ramp, and a second side ramp, through which pad heated air is directed via a latticework of air channels to a plurality of vent holes to melt accumulated snow and ice around a home or building. The present forced air heated mat is configured to interconnect with a heating exhaust or drier vent on the exterior of a home or building to direct waste heat to perform useful work in melting accumulated snow and ice.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: December 25, 2012
    Inventor: Khaled M. Berbash
  • Publication number: 20120301222
    Abstract: A product and method for repairing holes and cracks in roads, parking lots, sidewalks and other similar surfaces using a mixture of powder coating (i.e. dry paint) and a filler. The first step is to obtain the powder coating material. Any suitable powder coating material may be used, however, it is preferable to use the excess or waste powder coating material obtained from a powder coating operation. The next step is to mix the powder coating material with a filler, such as sand, pea gravel, or another suitable material. After the components are mixed together, it is applied to a surface needing repair such as a pothole in a road or a crack in a sidewalk. The mixture is cured by heating the mixture to the point where the powder coating melts and binds the powder coating with the filler and the surface needing repair. It may be cured before or after it is applied to the surface needing repair. After the mixture cures, the result is a high quality patched surface.
    Type: Application
    Filed: May 27, 2011
    Publication date: November 29, 2012
    Inventor: Duane J. Laffey
  • Patent number: 8297875
    Abstract: A system and method to control heating of a screed assembly in a paving machine is disclosed. The system and method includes providing a plurality of screed elements in communication with a respective one of a plurality of circuit breakers through a respective one of a plurality of relays. The system and method additionally includes providing a control system in communication with the plurality of screed elements and the plurality of relays and, receiving inputs by the control system to generate an output signal based upon the inputs. Heating of each of the plurality of screed elements is accomplished in response to the output signal.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: October 30, 2012
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Jason W. Kopacz, Anthony P. Steinhagen, Jameson M. Smieja
  • Publication number: 20120155962
    Abstract: Disclosed is a process for construction of a design for elastic pavement of a road or sidewalk. The process includes: grinding rubber chips into fine pieces, admixing the ground chip pieces with a urethane binder, heat curing the mixture to prepare a mat block, and slicing the prepared mat block to form logo blocks of desired design; grinding rubber chips into fine pieces, admixing the ground chip pieces with a urethane binder, in-situ paving a road or sidewalk with the mixture, and leveling the paved road or sidewalk; and adhering a binder to a bottom of the logo block and placing the logo block on desired positions of the paved road or sidewalk before the paved road or sidewalk being cured, heating the paved road or sidewalk to fix the logo block to the paved road or sidewalk while leveling the same.
    Type: Application
    Filed: August 25, 2009
    Publication date: June 21, 2012
    Inventor: Sung jae Kim
  • Publication number: 20120107046
    Abstract: A paver includes an enclosed furnace for melting an inorganic paving material and a carriage for carrying the furnace. The furnace includes a heating chamber for receiving the paving material, a heater for heating the heating chamber to a temperature greater than 1,600° C. to melt the paving material, and an outlet for discharging melted paving material to form a paved road surface.
    Type: Application
    Filed: August 19, 2010
    Publication date: May 3, 2012
    Inventor: Yuchen Ma
  • Publication number: 20120087726
    Abstract: In electrically heated screed assemblies, elements that are prone to failure are the temperature sensors. Typically, each screed plate has a single temperature sensor. When one temperature sensor fails, the controller will look for a working temperature sensor amongst the other screed plates and if more than one temperature sensor is working, the controller will choose the most relevant temperature sensor and use the data from the working temperature sensor to operate the resistive heating elements on the screed plate with the non-functional temperature sensor. If the temperature sensor on an outer screed plate fails, the controller will look to the other outer screed plate temperature sensor for data for purposes of operating the resistive heating elements on the outer screed plate with a broken temperature sensor.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: CATERPILLAR, INC.
    Inventor: Jameson M. Smieja
  • Patent number: 8137025
    Abstract: An asphalt-paved road surface is rejuvenated in a multi-stage recycling process. The first process stage involves grinding, to a selected depth and width, a first strip portion of the surface and transporting it away from the site. The second process stage involves heating and grinding, to a selected temperature and depth, the upper layer of a second strip portion and moving it to the first strip portion to expose a lower layer. The third process stage involves heating and grinding, to a selected temperature and depth, the exposed lower layer of the second strip portion and moving it to the first strip portion. New asphalt is then added to rejuvenate the recycled asphalt and to maintain the grade elevation. The mixture is then placed back on the road surface using conventional means.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: March 20, 2012
    Inventor: Pat Wiley
  • Patent number: 8133540
    Abstract: This application relates to a method of applying a thermally settable coating to a patterned substrate, such as an asphalt surface. The coating is applied in one or more preformed thermoplastic sheets and heated in situ to conform the thermoplastic material to the pattern formed in the underlying substrate. In one embodiment of the invention a pattern is formed in the asphalt surface using a removable template which is impressed into the asphalt when it is in a pliable state. The pre-formed sheets are then applied to the patterned surface and gradually heated. In an alternative embodiment of the invention the template is impressed into the pre-formed sheet and asphalt surface simultaneously after the sheet has been heated to a suitable temperature in situ. A bond reduction agent may be used to minimize adhesion between the template and the heated thermoplastic material.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 13, 2012
    Assignee: Flint Trading, Inc.
    Inventors: Patrick Carl Wiley, Alan Juristovski
  • Patent number: 8119202
    Abstract: This application relates to a method of applying a thermally settable coating to a patterned substrate, such as an asphalt surface. The coating is applied in one or more preformed thermoplastic sheets and heated in situ to conform the thermoplastic material to the pattern formed in the underlying substrate. In one embodiment of the invention a pattern is formed in the asphalt surface using a removable template which is impressed into the asphalt when it is in a pliable state. The pre-formed sheets are then applied to the patterned surface and gradually heated. In an alternative embodiment of the invention the template is impressed into the pre-formed sheet and asphalt surface simultaneously after the sheet has been heated to a suitable temperature in situ. A bond reduction agent may be used to minimize adhesion between the template and the heated thermoplastic material.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: February 21, 2012
    Assignee: Flint Trading, Inc.
    Inventor: Patrick Carl Wiley
  • Publication number: 20110318102
    Abstract: A process for producing an asphalt layer in which material with properties that deviate from predetermined requirements is specifically homogenized, and a paving train (10), a road paver (12) and a feeder (14) for carrying out the process.
    Type: Application
    Filed: December 9, 2010
    Publication date: December 29, 2011
    Applicant: Dynapac GmbH
    Inventors: Ronald Utterodt, Marcus Utterodt, Klaus-Dieter Bunk
  • Patent number: 7993075
    Abstract: A control system for heating a screed assembly of a paving machine is provided. The control system includes a plurality of resistive heating elements positioned adjacent to a screed plate of the screed assembly. An electrical power supply is selectively connected with the resistive heating elements via switches operated by a controller. The controller is responsive to inputs from at least manual switches and temperature sensors. The controller is configured to automatically adjust the temperature of the screed plate by selectively energizing fewer than all of the resistive heating elements at a time.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: August 9, 2011
    Assignee: Caterpillar Paving Products Inc.
    Inventor: James J. Nelson
  • Publication number: 20110129296
    Abstract: A portable system for heating aggregate material, especially reclaimed asphalt pavement (RAP), a portable system for producing asphalt, a portable system for continuously repaving roadway, and a method for continuously repaving roadway. Each system includes a conveyor belt, at least one infrared chamber disposed in substantially parallel relation to the conveyor belt at a distance sufficient to allow infrared heating of the aggregate material, a source of fuel, a fuel control in communication with the infrared chamber, and at least one mixer disposed between the infrared chamber and the conveyor belt and dimensioned and disposed relative to the conveyor belt so as to mix the aggregate material during heating and drying.
    Type: Application
    Filed: September 21, 2010
    Publication date: June 2, 2011
    Inventor: Wesley Van Velsor
  • Patent number: 7874763
    Abstract: A heating head for a paving apparatus includes a substantially cylindrical head housing, having a top housing edge axially spaced from a bottom housing edge, a sidewall having a spiral cross-sectional shape and a laterally extending top housing cover attached to at least a portion of the top housing edge. The head housing defines an air chamber and is adapted to accept and direct airflow through the heating head. The sidewall defines an intake vent at a radially outward end and an air chamber inlet at a radially inward end. The intake vent and air chamber inlet are spaced apart and in mutual fluid communication via an elongated circumferentially extending air passage to direct airflow from an exterior of the heating head to the air chamber.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: January 25, 2011
    Assignee: Asphalt Recycling System
    Inventor: Angelo Benedetti
  • Publication number: 20100296866
    Abstract: In a paver F comprising a combustion engine M, in particular a diesel engine, of a primary driving aggregate P, functional units having hydraulic pumps 23, 30 to 33 inclusive a travel pump aggregate 23 which can be driven by the combustion engine M for supplying at least one travel drive 16, a generator G for supplying electric heating devices H of the paver F and/or of a paving screed B of the paver F with electric power, the generator G is driven permanently while at least one pump 23, 30 to 33 selectively can be disconnected from the combustion engine via at least one shiftable clutch K1, K2, K3. During a heating-up phase of electric heating devices H via the permanently driven generator G at least one of the pumps is disconnected. During transport travel at least one pump of the functional units, except the permanently driven travel pump aggregate 23 and the generator G, is disconnected.
    Type: Application
    Filed: March 11, 2010
    Publication date: November 25, 2010
    Applicant: JOSEPH VOEGELE AG
    Inventors: Arthur Braun, Christian Pawlik, Thomas Schmidt
  • Patent number: 7687104
    Abstract: Disclosed herein are a method of applying an asphalt waterproofing membrane material for buildings and bridge decks using sawdust. More specifically, disclosed is a method for applying a waterproofing membrane composition having excellent waterproofing ability using sawdust, such that the composition is not broken down by external force and can function as a waterproofing material.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: March 30, 2010
    Assignees: Road Seal Co., Ltd., Hwashin Co., Ltd.
    Inventors: Young Gyu Moon, Du Byung Kim
  • Publication number: 20100040411
    Abstract: A road heating device disposable on a road to increase a surface temperature thereof, includes a sensor configured to convert at least one of an environmental impact and a physical impact on the road heating device to electric power, an energy storage configured to store the electric power from the sensor, a heating unit configured to generate heat using the electric power stored in the energy storage, and a switch configured to selectively power the heating unit with the electric power stored in the energy storage when the surface temperature is equal to or lower than a first temperature.
    Type: Application
    Filed: August 14, 2009
    Publication date: February 18, 2010
    Inventor: Mario W. Cardullo
  • Patent number: 7607860
    Abstract: The invention relates to a method and a movable apparatus for utilizing microwave energy to dry materials (optionally with sterilization) by the direct application of bifurcated out-of-phase microwave energy.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: October 27, 2009
    Inventor: John F. Novak
  • Publication number: 20090257824
    Abstract: A tack emulsion pre-coating system for use in hot mix asphalt plant paving which comprises providing a triangular-shaped tack emulsion cart deployed ahead of a paver, and configured to operate under a conveyor from a transfer vehicle supplying the paver with HMA, where the cart comprises a forward spray bar which sprays tack emulsion on a surface located between the wheels of the paver so as not to leave tracks and with rear spray bars for spraying tack emulsion behind the wheels, but not behind a central area between the wheels of the paver.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Applicant: TEREX CORPORATION
    Inventor: JOSEPH E. MUSIL
  • Publication number: 20090196690
    Abstract: A non-slip composition used for paving a road and a method of forming a skid resistant pavement using the non-slip composition. The non-slip composition includes a mixture of a tire waste, a steel slag and a ceramic waste as a main component, and is constructed as a skid resistant pavement on a specific section of the road, such as a sharp slope, a sharp curve or a ramp, which requires a braking distance, in order to prevent vehicles from skidding on the road.
    Type: Application
    Filed: October 10, 2007
    Publication date: August 6, 2009
    Inventors: Kyung-Ho Kim, Yong-Gyun Kim
  • Patent number: 7560673
    Abstract: An apparatus for controlling agricultural pests in soil using microwave energy. The apparatus is an agricultural implement having a means for directing a layer of soil from the ground onto a conveyor which carries the soil through a microwave energy application area, and then disperses the soil back onto the ground. The microwave energy heats the soil to a desired temperature which destroys weeds, seeds, and insects in the soil.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: July 14, 2009
    Inventor: George W. Wall
  • Publication number: 20090169901
    Abstract: A method for bonding together an existing substrate layer and a pavement layer, such that a strong adhesive bond is formed by using a tack coat, provided by an asphalt emulsion, in between the layers as the bond coat. The tack coat layer is a low-tracking coating which cures quickly such that the pavement layer may be applied to the substrate, hours to days after the emulsion is applied to the substrate. The asphalt emulsion comprises at least a first phase of from about 30% to about 70% of an asphalt composition, about 30% to about 70% water, and about 0.1% to about 3.0% emulsifying agent, stabilizer and/or additives, or 0.1% to about 30% if polymeric or other additives are also included.
    Type: Application
    Filed: March 12, 2009
    Publication date: July 2, 2009
    Applicant: BLACKLIDGE EMULSIONS, INC.
    Inventor: Roy B. Blacklidge
  • 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