Pavement patching apparatus
First Claim
1. Pavement patching apparatus of the type that is movable to locations for repairing pavement defects adjacent said locations, said apparatus comprising hopper means for containing a supply of patching material;
- backhoe means mounted on said apparatus and having a bucket; and
means mounted on said apparatus for operating said backhoe means to manipulate said backhoe bucket to position said backhoe bucket selectively at said hopper means and at pavement defects, to manipulate said backhoe bucket at pavement defects for working on pavement defects in preparation for receipt of patching material, to position said backhoe bucket to receive patching material from said hopper means, and to manipulate said backhoe bucket to dispense patching material therefrom onto prepared pavement defects.
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Accused Products
Abstract
Self-propelled pavement patching apparatus is provided and includes a backhoe whose bucket has teeth and a cutting blade at opposite ends thereof and screeding edges underneath, another patch material distributing and screeding device mounted on the apparatus for movement therewith, a hopper for dispensing patch material to a conveyor for selective delivery of patch material to the backhoe or the screeding device. The apparatus is tricycle-type having two wheels at the outside and a third wheel for driving and steering. A roller adjacent one side wheel provides for compacting patching material over pavement defects, and the roller is lowered to raise that wheel from the pavement to form an outrigger corresponding to a conventional outrigger foot adjacent the other outside wheel. A movable outer hopper wall can be lowered for reception of patch material from a dump truck and raised toward a more nearly upright position to facilitate delivery of patching material to the conveyor and for towing vehicle clearance. The hopper is expansible widthwise of the apparatus, and an extensible guide provides a pendent arm contacting the pavement for viewing by the apparatus operator over the hopper for accurately locating the apparatus relative to pavement features. A towing link pivotably mounted adjacent the drive wheel has a towing eye for engagement with a hitching hook on a truck and is pivotable downwardly after engagement for lifting the drive wheel from the pavement for towing the apparatus behind the truck.
27 Citations
11 Claims
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1. Pavement patching apparatus of the type that is movable to locations for repairing pavement defects adjacent said locations, said apparatus comprising hopper means for containing a supply of patching material;
- backhoe means mounted on said apparatus and having a bucket; and
means mounted on said apparatus for operating said backhoe means to manipulate said backhoe bucket to position said backhoe bucket selectively at said hopper means and at pavement defects, to manipulate said backhoe bucket at pavement defects for working on pavement defects in preparation for receipt of patching material, to position said backhoe bucket to receive patching material from said hopper means, and to manipulate said backhoe bucket to dispense patching material therefrom onto prepared pavement defects. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- backhoe means mounted on said apparatus and having a bucket; and
Specification