Patent ID: 6302334
Filing Date: 2001-10-16
Classification: E01C

Abstract:
A tar heating and spraying apparatus comprising:a gas burner;a pipe that supplies a fuel gas to said gas burner;an electric motor that supplies a source of oxygen to said burner;an electric plant that provides energy to said electric motor and a control board, said electric plant being powered by said fuel gas;a heating tank heated by said gas burner and comprising an interior zone, an intermediate zone and an exterior zone;a supply tank that hold dense tar;a duct that connects said supply tank to said heating tank;a hose connecting said supply tank to said heating tank;an in line pump in cooperation with said hose;a lid covering a top opening in said supply tank; said supply tank having an intermediate zone and a hose connection to which a hose can be connected;a vent connecting said intermediate zone of said supply tank to said intermediate zone of said heating tank, said vent capable of transporting hot air from said intermediate zone of said heating tank to said intermediate zone of said supply tank which enables easy passage of tar;a sprayer gun having a first entry and a second entry; anda further hose connecting said intermediate zone of said heating tank to said sprayer gun, said further hose having an interior passageway through which the tar travels and having an outer passageway through which hot gases travel, said first entry of said sprayer gun in communication with said outer passageway of said further hose and receiving hot air and said second entry of said sprayer gun in communication with said interior passageway of said further hose and receiving tar.