Water applicator for a pavement grooving machine

Claim 2

A water applicator for attachment to a pavement grooving machine of the type including a cutter assembly which has a rotating shaft on which are mounted a plurality of parallel rotary cutting blades at a predetermined spacing, the blades engaging the pavement to cut grooves therein, the water applicator including: a water tube having, a tubular wall having, at least one enclosed internal passage extending in a direction axially of said tubular wall, a plurality of notch-like openings extending through said tubular wall into communication with said passage, said openings spaced along said tubular wall at a corresponding spacing to the predetermined spacing of the cutting blades, each said opening being of sufficient width to loosely receive an associated one of the cutting blades; and supporting means adapted for connection to the pavement grooving machine for supporting said water tube in spaced parallel relation to the rotating shaft with the cutting blades projecting through the associated said openings in said tubular wall partially into said passage.

Claim 3

A water applicator as defined in claim 1, wherein said water tube is formed from rigid plastic material and wherein said openings are formed by moving said tubular wall radially against the cutting blades to cause the blades to cut through said tubular wall and extend partially into said passage.

Claim 4

A water applicator as defined in claim 1, wherein adjacent portions of said tubular wall defining said openings are configured to extend in parallel relation to the peripheral edges of the associated cutting blades and are spaced out of edge-to-edge contact therewith.

Claim 5

A water applicator as defined in claim 3, wherein said tubular wall is of circular cross-section and wherein the peripheral extent of each said opening constitutes only a minor arc of said circular cross-section.

Claim 6

A water applicator as defined in claim 4, wherein each said opening faces in a generally upward direction toward the associated cutting blade with said supporting means supporting said water tube at a vertical location below the horizontal diameter of the cutting blades.

Claim 7

A spray unit as defIned in claim 4, wherein the radially innermost portion of each cutting blade relative to said internal passage extends inwardly thereof to a position in the raange of one-fourth to one-half of the diameter of said passage.

Claim 8

A water applicator as defined in claim 3, further including: water means connected to said tubular wall for supplying water under pressure to said internal passage.

Claim 9

A water applicator as defined in claim 7, wherein said water means comprises at least one water supply pipe connected to an axial end of said tubular wall for delivering water axially of said internal passage.

Claim 10

A water applicator as defined in claim 7, wherein said water means comprises: at least one water supply pipe connected with said tubular wall intermediate the extremities thereof for directing water in a radial direction into said passage.

Claim 11

A liquid applicator for attachment to a cutting assembly which has a rotating shaft on which are mounted a plurality of parallel rotary cutting blades at a predetermined spacing, the liquid applicator including: a tube having, a tubular wall having, an enclosed internal passage extending in a direction axially of said tubular wall, a plurality of notch-like openings extending through said tubular wall into communication with said passage, said openings spaced along said tubular wall at a corresponding spacing to the predetermined spacing of the cutting blades, each said opening being of sufficient width to loosely receive an associated one of the cutting blades; and supporting means adapted for connection to the cutting assembly for supporting said tube in spaced parallel relation to the rotating shaft with the cutting blades projecting through the associated said openings in said tubular wall partially into said passage.

Claim 12

A liquid applicator for attachment to a cutting assembly which has a rotating shaft on which are mounted a plurality of parallel rotary cutting blades at a predetermined spacing, the liquid applicator including: a tube having, a tubular wall having, an enclosed internal passage extending in a direction axially of said tubular wall, a plurality of notch-like openings extending through said tubular wall into communication with said passage, said openings spaced along said tubular wall at a corresponding spacing to the predetermined spacing of the cutting blades, each said opening being of sufficient width to loosely receive an associated one of the cutting blades; and supporting means adapted for connection to the cutting assembly for supporting said tube in spaced parallel relation to the rotating shaft with the cutting blades projecting through the associated said openings in said tubular wall partially into said passage.

Claim 13

A pavement grooving machine comprising: a frame extending in a longitudinal direction; wheel means supporting said frame for longitudinal motion along the pavement; a cutting assembly, including, a horizontal, rotating shaft mounted in said frame extending transversely thereof, a plurality of rotary cutting blades mounted in transversely spaced parallel relation along said rotating shaft, said cutting blades at their lower peripheral extremities extending into contact with the pavement to cut longitudinally extending grooves therein during motion of said frame; a water applicator fixedly connected to said frame including, a transversely extending, tubular wall positioned in spaced parallel relation to said rotating shaft, a transversely extending, enclosed internal passage within said tubular wall, a plurality of transversely spaced, notch-like openings through said tubular wall communicating with said passage, each said opening being aligned with and loosely receiving an associated one of said cutting blades which projects partially into said passage; and means for supplying water under pressure to said passage.

Claim 14

A pavement grooving machine comprising: a frame extending in a longitudinal direction; wheel means supporting said frame for longitudinal motion along the pavement; a cutting assembly, including, a horizontal, rotating shaft mounted in said frame extending transversely thereof, a plurality of rotary cutting blades mounted in transversely spaced parallel relation along said rotating shaft, said cutting blades at their lower peripheral extremities extending into contact with the pavement to cut longitudinally extending grooves therein during motion of said frame; a water applicator fixedly connected to said frame including, a transversely extending, tubular wall positioned in spaced parallel relation to said rotating shaft, a transversely extending, enclosed internal passage within said tubular wall, a plurality of transversely spaced, notch-like openings through said tubular wall communicating with said passage, each said opening being aligned with and loosely receiving an associated one of said cutting blades which projects partially into said passage; and means for supplying water under pressure to said passage.

Claim 15

A pavement grooving machine as defined in claim 11, wherein said water tube is formed from rigid plastic material and wherein said openings are formed by moving said tubular wall radially against the cutting blades to cause the blades to cut through said tubular wall and extend partially into said passage.

Claim 16

A pavement grooving machine as defined in claim 11, wherein adjacent portions of said tubular wall defining said openings are configured in the vertical plane to extend in parallel relation to the peripheral edges of the associated cutting blades and are spaced out of edge-to-edge contact therewith.

Claim 17

A pavement grooving machine as defined in claim 13 wherein said tubular wall is of circular cross-section and wherein the peripheral extent of each said opening constitutes only a minor arc of said circular cross-section.

Claim 18

A pavement grooving maching as defined in claim 14, wherein the radially innermost portion of each cutting blade relative to said internal passage extends inwardly thereof to a position in the range of one-fourth to one-half of the diameter of said passage.

Claim 19

A liquid applicator for attachment to a cutting assembly which has a rotating shaft on which is mounted at least one rotary cutting blade, the liquid applicator including: a tube having, a tubular wall having, an enclosed internal passage extending in a direction axially of said tubular wall, at least one notch-like opening extending through said tubular wall into communication with said passage, said opening being of sufficient width to loosely receive the cutting blade, and supporting means adapted for connection to the cutting assembly for supporting said tube in spaced parallel relation to the rotating shaft with the cutting blade projecting through said opening in said tubular wall partially into said passage.

Claim 20

A liquid applicator for attachment to a cutting assembly which has a rotating shaft on which is mounted at least one rotary cutting blade, the liquid applicator including: a tube having, a tubular wall having, an enclosed internal passage extending in a direction axially of said tubular wall, at least one notch-like opening extending through said tubular wall into communication with said passage, said opening being of sufficient width to loosely receive the cutting blade, and supporting means adapted for connection to the cutting assembly for supporting said tube in spaced parallel relation to the rotating shaft with the cutting blade projecting through said opening in said tubular wall partially into said passage.