Vertical asphalt and concrete miller
OwnerEmory R. Bossowinventor
Life of this patent
Estimating the term…
Abstract
A device for cutting and excavating soils, concrete, asphalt and road surfaces and subsurfaces. The Vertical Asphalt & Concrete Miller is mounted on various types of construction equipment such as a back hoe. The construction equipment normally provides hydraulic fluid to drive the rotary cutting head. Several configurations of replaceable cutting bits are used depending upon the material to be cut. One specific cutting head is a coring bit used to cut the concrete or asphalt around manhole castings, water valves and monument boxes.
Claims22
In combination with various construction equipment, a machine for removing castings comprising:
- (a) a first mounting means for removeably attaching said machine to said construction equipment;
- (b) a drive shaft having its axis in a vertical position;
- (c) a drive means for rotating said drive shaft;
- and
- (d) a hollow cylindrical cutting tool, said cutting tool being attached to said drive shaft and being provided with a plurality of cutting teeth means located on the bottom edge of the cylindrical portion of said cutting tool, said cutting tool having a plurality of spaced slanted grooves in the outer surface of said cylindrical portion, whereby said grooves eject debris and said cutting tool having a plurality of spaced slanted projections extending outward from the outer surface of said cylindrical portion, whereby said projections protect the surface of said cylindrical cutting tool from wear.
In combination with various construction equipment, a machine for removing castings comprising:
- (a) a first mounting means for removeably attaching said machine to said construction equipment;
- (b) a drive shaft having its axis in a vertical position;
- (c) a drive means for rotating said drive shaft;
- (d) a hollow cylindrical cutting tool, said cutting tool being attached to said drive shaft and being provided with a plurality of cutting teeth means located on the bottom edge of the cylindrical portion of said cutting tool, said cutting tool having a plurality of spaced slanted grooves in the outer surface of said cylindrical portion, whereby said grooves eject debris and said cutting tool having a plurality of spaced slanted projections extending outward from the outer surface of said cylindrical portion, whereby said projections protect the surface of said cylindrical cutting tool from wear;
- and
- (e) means for raising and lowering said cylindrical cutting tool vertically.
A coring bit comprising a hollow cylindrical cutting tool, said cutting tool being provided with a plurality of cutting teeth means located on the bottom edge of the cylindrical portion of said cutting tool, said cutting tool having a plurality of spaced slanted grooves in the outer surface of said cylindrical portion, whereby said grooves eject debris and said cutting tool having a plurality of spaced slanted projections extending outward from the outer surface of said cylindrical portion, whereby said projections protect the surface of said cylindrical cutting tool from wear.
Dependencies are inferred from the claim text.