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公开(公告)号：US20190136468A1
公开(公告)日：2019-05-09
申请号：US16139273
申请日：2018-09-24
Applicant: Roadtec, Inc.
Inventor： Todd Avans , James H. Bevill , David Swearingen
IPC: E01C23/088 , G01L1/22
Abstract: A milling machine for milling a roadway surface includes a frame and a milling drum that is mounted for rotation with respect to the frame. A primary drum drive assembly is operatively attached to the milling drum and adapted to rotate the milling drum, and a ground-engaging drive assembly that is adapted to drive the milling machine along the roadway surface. A lifting column is attached at its upper end to the frame and at its lower end to the ground-engaging drive assembly. The lifting column includes a linear actuator which can be operated to raise and lower the frame of the machine with respect to the roadway surface. A sensor that is associated with the lifting column is adapted to determine if the lifting column is not supporting a portion of the weight of the milling machine sufficient to insure that the milling drum is not supporting any part of the weight of the milling machine. A controller is operatively attached to the primary drum drive assembly and to the sensor. The controller is adapted to receive from the sensor a signal indicating that the lifting column is not supporting the portion of the weight of the milling machine that is sufficient to insure that the milling drum is not supporting any part of the weight of the milling machine, and upon receipt of such signal, to stop the rotation of the milling drum.
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2.发明申请公开(公告)号：US20180142427A1
公开(公告)日：2018-05-24
申请号：US15791942
申请日：2017-10-24
Applicant: Roadtec, Inc.
Inventor： Oleg Tkachenko , John E. Hoffmann , David Swearingen , Irina Brown
CPC classification number: E01C19/004 , B60Q1/50 , B60Q9/00 , E01C2301/04 , G05D1/021 , G05D1/0293 , G05D2201/0202
Abstract: An apparatus for controlling the movement of a material transfer vehicle with respect to the front end of a paving machine that is being supplied by the material transfer vehicle includes a controller that is mounted on the material transfer vehicle and is operatively connected to drive systems for controlling the steering and speed of the material transfer vehicle. A sensor is mounted on the material transfer vehicle and is operatively connected to the controller. The sensor is located and adapted to execute multiple non-contact sensor scan passes across the front end of the paving machine to determine the distance from the sensor to the paving machine. The sensor is also adapted to communicate information to the controller about the distance from the sensor to the paving machine. The apparatus includes no components that are mounted on the paving machine.
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公开(公告)号：US20150204028A1
公开(公告)日：2015-07-23
申请号：US14591640
申请日：2015-01-07
Applicant: Roadtec, Inc.
Inventor： David Swearingen , Mikel A. Blank
IPC: E01C19/00
Abstract: An asphalt paving machine includes a hopper for receiving asphalt material and a distributing auger for distributing asphalt material onto a roadway to be paved. A hopper conveyor is provided to carry asphalt material from the hopper to the distributing auger. The hopper conveyor has a rear end that is adjacent the distributing auger, an outside edge, and a flow diverter that is adapted to divert asphalt material being carried by the hopper conveyor away from the outside edge thereof.
Abstract translation: 沥青摊铺机包括用于接收沥青材料的料斗和用于将沥青材料分配到待铺设的道路上的分配螺旋钻。 提供料斗输送机以将沥青材料从料斗运送到分配螺旋钻。 料斗输送机具有与分配螺旋推运器相邻的后端，外边缘和分流器，其适于将由料斗输送机承载的沥青材料转移离开其外边缘。
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公开(公告)号：US12025990B2
公开(公告)日：2024-07-02
申请号：US16544403
申请日：2019-08-19
Applicant: Roadtec, Inc.
Inventor： Lillian Nichole Shelton , John E. Hoffmann , David Swearingen , Irina Brown , Kerry Malone , Oleg Tkachenko
CPC classification number: G05D1/0293 , G05D1/0088 , G05D1/0231 , E01C19/48
Abstract: An apparatus for controlling the movement of a material transfer vehicle with respect to the front end of a paving machine that is being operated by a driver/operator and is being supplied with asphalt paving material by the material transfer vehicle includes a controller that is mounted on the material transfer vehicle and is operatively connected to control mechanisms for controlling the speed and braking of the material transfer vehicle. A sensor is mounted on the material transfer vehicle and is operatively connected to the controller. The sensor is located and adapted to execute non-contact sensor scan passes across the front end of the paving machine to determine the distance from the sensor to the paving machine. The sensor is also adapted to communicate information to the controller about the distance from the sensor to the paving machine. The apparatus includes no components that are mounted on the paving machine.
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公开(公告)号：US10246833B2
公开(公告)日：2019-04-02
申请号：US15899492
申请日：2018-02-20
Applicant: Roadtec, Inc.
Inventor： Mikel A. Blank , David Swearingen
Abstract: An asphalt paving machine includes a drive system, an asphalt receiving hopper and a distributing auger. A hopper conveyor, which is adapted to transport asphalt paving material from the receiving hopper to the distributing auger, includes a hopper conveyor motor and a speed sensor. A vertically-adjustable flow gate defines the size of the gate opening from the asphalt receiving hopper to the distributing auger, and a flow gate position sensor is adapted to determine the vertical position of the flow gate. A controller includes a timer and is operatively connected to the drive system for the paving machine, the speed sensor for the hopper conveyor motor and the flow gate position sensor. The controller uses a machine speed signal, a conveyor speed signal and a flow gate signal to measure the amount of asphalt paving material delivered to the distributing auger per unit of time.
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Patent Agency Ranking
公开(公告)号：US20200040534A1
公开(公告)日：2020-02-06
申请号：US16596271
申请日：2019-10-08
Applicant: Roadtec, Inc.
Inventor： Todd Avans , James H. Bevill , David Swearingen
IPC: E01C23/088 , G01L1/22 , G01G19/12
Abstract: A milling machine for milling a roadway surface includes a frame and a milling drum that is mounted for rotation with respect to the frame. A primary drum drive assembly is operatively attached to the milling drum and is adapted to rotate the milling drum, and a ground-engaging drive assembly is adapted to drive the milling machine along the roadway surface. A lifting column is attached at its upper end to the frame and at its lower end to the ground-engaging drive assembly. The lifting column includes a linear actuator which can be operated to raise and lower the frame of the machine with respect to the roadway surface. A sensor that is mounted to the lifting column is adapted to determine if the lifting column is not supporting at least a predetermined portion of the weight of the milling machine. A controller is operatively attached to the primary drum drive assembly and to the sensor. The controller is adapted to receive from the sensor a signal indicating that the lifting column is not supporting the predetermined portion of the weight of the milling machine, and upon receipt of such signal, to stop the rotation of the milling drum.
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7.发明授权公开(公告)号：US10907310B2
公开(公告)日：2021-02-02
申请号：US16106376
申请日：2018-08-21
Applicant: Roadtec, Inc.
Inventor： Oleg Tkachenko , John E. Hoffmann , David Swearingen , Irina Brown
Abstract: A material transfer vehicle has a discharge conveyor with a discharge chute mounted thereon. A controller is operatively connected to the elevation control system and the steering control system for the discharge conveyor. The controller is adapted to communicate with the elevation control system for the discharge conveyor to adjust the elevation of the discharge conveyor. The controller is also adapted to communicate with the steering control system for the discharge conveyor so that the angular orientation of the discharge conveyor with respect to the longitudinal axis of the material transfer vehicle may be adjusted. A paver-locating sensor is operatively connected to the controller, and is located and adapted to execute multiple non-contact sensor scan passes across the front end of the paving machine to determine the distance and orientation of the paving machine with respect to the paver-locating sensor and to communicate this information.
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公开(公告)号：US10655286B2
公开(公告)日：2020-05-19
申请号：US16596271
申请日：2019-10-08
Applicant: Roadtec, Inc.
Inventor： Todd Avans , James H. Bevill , David Swearingen
IPC: E01C23/088 , E01C23/12 , G01G19/12 , G01L1/22
Abstract: A milling machine includes a primary drum drive assembly that is adapted to rotate a milling drum, and a ground-engaging drive assembly that is adapted to drive the milling machine along a roadway. A lifting column includes a linear actuator which can be operated to raise and lower the frame of the machine with respect to the roadway. A sensor that is mounted to the lifting column is adapted to determine if the lifting column is not supporting at least a predetermined portion of the weight of the milling machine. A controller is operatively attached to the primary drum drive assembly and to the sensor. The controller is adapted to receive from the sensor a signal indicating that the lifting column is not supporting the predetermined portion of the weight of the milling machine, and upon receipt of such signal, to stop the rotation of the milling drum.
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9.发明申请公开(公告)号：US20190003133A1
公开(公告)日：2019-01-03
申请号：US16106376
申请日：2018-08-21
Applicant: Roadtec, Inc.
Inventor： Oleg Tkachenko , John E. Hoffmann , David Swearingen , Irina Brown
Abstract: A material transfer vehicle that is adapted to supply asphalt paving material to a paving machine on a roadway has a discharge conveyor with an input end and an output end with a discharge chute mounted thereon. A controller is operatively connected to the elevation control system and the steering control system for the discharge conveyor. The controller is adapted to communicate elevation control signals to the elevation control system for the discharge conveyor so that the elevation of the discharge conveyor may be adjusted based upon communication from the controller. The controller is also adapted to communicate steering control signals to the steering control system for the discharge conveyor so that the angular orientation of the discharge conveyor with respect to the longitudinal axis of the material transfer vehicle may be adjusted based upon communication from the controller. A paver-locating sensor is operatively connected to the controller, and is located and adapted to execute multiple non-contact sensor scan passes across the front end of the paving machine to determine the distance and orientation of the paving machine with respect to the paver-locating sensor. The paver-locating sensor is also adapted to communicate information to the controller about the distance and orientation of the paving machine with respect to the paver-locating sensor.
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公开(公告)号：US20180238000A1
公开(公告)日：2018-08-23
申请号：US15899492
申请日：2018-02-20
Applicant: Roadtec, Inc.
Inventor： Mikel A. Blank , David Swearingen
IPC: E01C19/20
CPC classification number: E01C19/202 , E01C19/48 , E01C2019/2065 , E01C2019/207
Abstract: An asphalt paving machine includes a drive system that is operated to move the paving machine across a surface to be paved, an asphalt receiving hopper which is adapted to receive asphalt paving material and a distributing auger. A hopper conveyor, which is adapted to transport the asphalt paving material from the asphalt receiving hopper to the distributing auger, includes a hopper conveyor motor and a speed sensor that is associated with the hopper conveyor motor. A vertically-adjustable flow gate that is associated with the hopper conveyor defines the size of the gate opening from the asphalt receiving hopper to the distributing auger, and a flow gate position sensor is adapted to determine the vertical position of the flow gate. A controller includes a timer and is operatively connected to the drive system for moving the paving machine, to the speed sensor for the hopper conveyor motor and to the flow gate position sensor. The controller uses a machine speed signal, a conveyor speed signal and a flow gate signal to measure the amount of asphalt paving material delivered to the distributing auger per unit of time.
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