Mobile sealant applicator for road joints and cracks
First Claim
1. Mobile applicator apparatus for applying a fluid sealant to cracks and joints in a road surface, comprising a container for receiving a supply of the sealant, a set of wheels supporting said container for movement along the surface, a push-type handle member projecting rearwardly fromm said container, an elongated burner tube extending through a portion of said container, a heater tube surrounding said burner tube, means for connecting said burner and heater tubes to define a chamber therebetween, means for supplying a heat exchange liquid to said chamber, a fuel burner nozzle for directing a flame axially into said burner tube to heat the heat exchange liquid and the fluid sealant within said container, a discharge tube extending laterally from a lower portion of said container and having an outlet for discharging the heated sealant from said container, a valve member mounted on said discharge tube and movable between open and closed positions adjacent said outlet, control means extending from said handle member for manually moving said valve member to control the flow of heated sealant from said outlet, means mounted on said container for supporting a propane fuel tank, a line connecting said propane fuel tank to said nozzle, and a squeegee member disposed rearwardly of said outlet adjacent the road surface for spreading the sealant discharged from said outlet onto the surface when said valve member is in said open position.
1 Assignment
0 Petitions
Accused Products
Abstract
An asphalt sealant material is heated within an insulated box-like container supported by a front caster wheel and a pair of thin disk-like steel side wheels. A push-type handle bar projects rearwardly and upwardly from the container which has an inner bottom wall sloping downwardly to a side discharge tube. A burner tube extends through a surrounding heater tube located within the lower portion of the container, and a heat exchange oil is confined within the annular space defined between the tubes. A propane fuel tank is supported by a platform projecting rearwardly from the container and is connected by a flexible hose to a nozzle located at the front of the burner tube. The rear of the burner tube connects with a vertical exhaust pipe, and the rear of the heater tube connects with an oil fill tube. The sealant discharge tube receives a valve tube rotatable by a control rod extending from the handle bar, and another control rod raises and lowers a squeegee member supported for vertical movement behind a bottom outlet within the discharge tube.
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Citations
16 Claims
- 1. Mobile applicator apparatus for applying a fluid sealant to cracks and joints in a road surface, comprising a container for receiving a supply of the sealant, a set of wheels supporting said container for movement along the surface, a push-type handle member projecting rearwardly fromm said container, an elongated burner tube extending through a portion of said container, a heater tube surrounding said burner tube, means for connecting said burner and heater tubes to define a chamber therebetween, means for supplying a heat exchange liquid to said chamber, a fuel burner nozzle for directing a flame axially into said burner tube to heat the heat exchange liquid and the fluid sealant within said container, a discharge tube extending laterally from a lower portion of said container and having an outlet for discharging the heated sealant from said container, a valve member mounted on said discharge tube and movable between open and closed positions adjacent said outlet, control means extending from said handle member for manually moving said valve member to control the flow of heated sealant from said outlet, means mounted on said container for supporting a propane fuel tank, a line connecting said propane fuel tank to said nozzle, and a squeegee member disposed rearwardly of said outlet adjacent the road surface for spreading the sealant discharged from said outlet onto the surface when said valve member is in said open position.
- 10. Mobile applicator apparatus for applying a fluid sealant to cracks and joints in a road surface, comprising a container for receiving a supply of the sealant, a set of wheels supporting said container for movement along the surface and including a pair of disk-like sheet metal side wheels, a push-type handle member projecting rearwardly from said container, an elongated burner tube extending through a portion of said container, a heater tube surrounding said burner tube, means for connecting said burner and heater tubes to define a chamber therebetween, means for supplying a heat exchange liquid to said chamber, a fuel burner nozzle for directing a flame axially into said burner tube to heat the heat exchange liquid and the fluid sealant within said container, a discharge tube extending laterally from a lower portion of said container and having an outlet for discharging the heated sealant from said container, a tubular valve member mounted on said discharge tube for rotation between open and closed positions adjacent said outlet, control means extending from said handle member for manually rotating said valve member to control the flow of heated sealant from said outlet, means mounted on said container for supporting a propane fuel tank, a line connecting said propane fuel tank to said nozzle, and a squeegee member disposed rearwardly of said outlet adjacent the road surface for spreading the sealant discharged from said outlet onto the surface when said valve member is in said open position.
Specification