Tamper Assembly

Abstract

A tamper assembly comprising: a motor being coupled to a transfer shaft, rotating the transfer shaft when the motor is actuated. At least two eccentric weights are coupled to the transfer shaft and a tamping foot is rotatably coupled to the transfer shaft. The tamping foot vibrates when said motor is actuated to tamp the asphalt or the stone when the tamping foot is drawn across the asphalt or the stone behind an asphalt paver. Two attachment bars facilitate removable and adjustable attachment of the tamper assembly to an asphalt paver.

1 . A tamper assembly for tamping asphalt or stone placed on a surface, said assembly comprising:
 a motor being coupled to a coupler coupled to a transfer shaft, said motor rotating said transfer shaft when said motor is actuated;   a plurality of eccentric weights being coupled to said transfer shaft;   a mounting unit configured for attachment to a vehicle; and   a tamping foot being rotatably coupled to said transfer shaft, said tamping foot vibrating when said motor is actuated to tamp the asphalt or the stone when said tamping foot is drawn across the asphalt or the stone.   
   
   
       2 . The tamper assembly of  claim 1  wherein the tamping foot comprises a screed for contacting the asphalt and wherein the tamper assembly causes asphalt compaction and a smoothing effect by friction of the screed of the tamper foot, vibration of the eccentric weights and a weight of the tamper assembly as it is drawn across the asphalt. 
   
   
       3 . The tamper assembly of  claim 1  wherein the mounting unit comprises a mounting bracket, two attachment bars each having an adjustable turnbuckle and rotatably coupled to a proximal end of the mounting bracket such that the attachment bars are adjustable with respect to the tamping foot. 
   
   
       4 . The tamper assembly of  claim 3  wherein the mounting unit facilitates mounting of the tamper assembly along an asphalt seam on both the right and left sides of an asphalt paver such that the tamping assembly pinches the asphalt seam by vibratory compaction when the tamping foot is drawn across the asphalt seam. 
   
   
       5 . The tamper assembly of  claim 1  wherein the motor comprises a hydraulic motor and the tamper assembly further comprises a hydraulic line that feeds hydraulic fluid to a hydraulic system of the hydraulic motor. 
   
   
       6 . The tamper assembly of  claim 1  wherein the tamping foot has a base having a front and a back, and wherein the tamper assembly further comprises a lubricant sprayer coupled to a fuel line and extending around a perimeter of the tamping foot wherein the lubricant sprayer sprays a light coating of lubricant about the front of the base of the tamping foot. 
   
   
       7 . The tamper assembly of  claim 1  wherein the tamper assembly has a front and a back and further comprises a flame burner system coupled to the front of the tamper assembly. 
   
   
       8 . The tamper assembly of  claim 7  wherein the flame burner system comprises a valve coupled to a spray nozzle and in fluid communication with a fuel supply and the valve controls a flow of fuel from the fuel supply when the valve is actuated. 
   
   
       9 . The tamper assembly of  claim 7  wherein the flame burner system is configured to apply heat to the asphalt prior to coming into contact with and being compacted by the tamper assembly, heating the asphalt to a temperature of from 100 degrees Fahrenheit (about 37.78 degree Celsius) to 150 degrees Fahrenheit (about 65.56 degree Celsius). 
   
   
       10 . The tamper assembly of  claim 1  wherein the tamper assembly has a front and a back and further comprises a lute rake coupled to the front of the tamper assembly that brushes off high standing asphalt material along the peripheral surface of the asphalt. 
   
   
       11 . The tamper assembly of  claim 2  wherein a peripheral edge of the screed of the tamping foot is chamfered along its exterior surface. 
   
   
       12 . The tamper assembly of  claim 11  wherein the peripheral edge has a 45 degree radius curve. 
   
   
       13 . A tamper assembly for tamping a surface, said assembly comprising:
 a motor being coupled to a coupler coupled to a transfer shaft, said motor rotating said transfer shaft when said motor is actuated;   a plurality of eccentric weights being coupled to said transfer shaft;   a mounting unit;   wherein a tamping foot being rotatably coupled to said transfer shaft, said tamping foot vibrating when said motor is actuated to tamp the surface when said tamping foot is drawn across the surface;   wherein the tamping foot comprises a screed for contacting the surface and wherein the tamper assembly causes compaction of the surface;   wherein the mounting unit comprises a mounting bracket, two attachment bars each having an adjustable turnbuckle and rotatably coupled to a proximal end of the mounting bracket such that the attachment bars are adjustable with respect to the tamping foot;   wherein the motor comprises a hydraulic motor and the tamper assembly further comprises a hydraulic line that feeds hydraulic fluid to a hydraulic system of the hydraulic motor;   wherein the tamping foot has a base having a front and a back, and wherein the tamper assembly further comprises a lubricant sprayer coupled to a fuel line and extending around a perimeter of the tamping foot wherein the lubricant sprayer sprays a light coating of lubricant about the front of the base of the tamping foot;   wherein the tamper assembly has a front and a back and further comprises a flame burner system coupled to the front of the tamper; wherein the flame burner system comprises a valve coupled to a spray nozzle and in fluid communication with a fuel supply and the valve controls a flow of fuel from the fuel supply when the valve is actuated; and   wherein the tamper assembly has a front and a back and further comprises a lute rake coupled to the front of the tamper assembly.   
   
   
       14 . A tamper assembly for tamping asphalt or stone placed on a surface, said assembly comprising:
 a motor being coupled to a coupler coupled to a transfer shaft, said motor rotating said transfer shaft when said motor is actuated;   a plurality of eccentric weights being coupled to said transfer shaft;   a mounting unit configured for attachment to a vehicle; and   
     a tamping foot being rotatably coupled to said transfer shaft, said tamping foot vibrating when said motor is actuated to tamp the asphalt when said tamping foot is drawn across the asphalt; 
     wherein the tamper assembly has a front and a back and further comprises a lute rake coupled to the front of the tamper assembly; and
 wherein the tamper assembly facilitates a uniform distribution of coarse particles across a peripheral surface of asphalt material laid by an asphalt paver, thereby preventing aggregation of coarse asphalt particles at an outer edge of the asphalt. 
 
   
   
       15 . The tamper assembly of  claim 14  wherein the tamper assembly has a front and a back and further comprises a flame burner system coupled to the front of the tamper assembly and having a fuel line. 
   
   
       16 . The tamper assembly of  claim 15  wherein the tamping foot has a base having a front and a back, and wherein the tamper assembly further comprises a lubricant sprayer coupled to the fuel line and extending around a perimeter of the tamping foot wherein the lubricant sprayer sprays a light coating of lubricant about the front of the base of the tamping foot. 
   
   
       17 . The tamper assembly of  claim 15  wherein the tamper assembly has a front and a back and further comprises a flame burner system coupled to the front of the tamper assembly for heating previously laid underlayment or asphalt, thereby minimizing temperature reduction of the asphalt prior to compaction. 
   
   
       18 . The tamper assembly of  claim 16  wherein the mounting unit comprises a mounting bracket, two attachment bars each having an adjustable turnbuckle and rotatably coupled to a proximal end of the mounting bracket such that the attachment bars are adjustable with respect to the tamping foot. 
   
   
       19 . The tamper assembly of  claim 18  wherein the tamper assembly has a front and a back and further comprises a lute rake coupled to the front of the tamper assembly. 
   
   
       20 . A tamper assembly for tamping asphalt or stone placed on a surface, said assembly comprising:
 a front and a back;   a motor being coupled to a coupler coupled to a transfer shaft, said motor rotating said transfer shaft when said motor is actuated;   a plurality of eccentric weights being coupled to said transfer shaft;   a tamping foot being rotatably coupled to said transfer shaft, said tamping foot vibrating when said motor is actuated to tamp the asphalt when said tamping foot is drawn across the asphalt, and wherein the tamper assembly further comprises a lubricant sprayer coupled to a fuel line and extending around a perimeter of the tamping foot;   a mounting unit configured for attachment to a rear of an asphalt paver wherein the mounting unit comprises a mounting bracket, two attachment bars each having an adjustable turnbuckle and rotatably coupled to a proximal end of the mounting bracket such that the attachment bars are adjustable with respect to the tamping foot;   a lute rake and a flame burner system coupled to the front of the tamper assembly; and   wherein the tamper assembly facilitates a uniform distribution of coarse particles across a peripheral surface of asphalt material laid by an asphalt paver, thereby preventing aggregation of coarse asphalt particles at an outer edge of the asphalt.