Cooling system for wheeled saw

Claim 2

A machine for making a cut in the surface of concrete or asphalt, comprising: a wheeled frame; a cutting blade rotatably attached to said frame, said blade having a plurality of cutting segments fastened to a core with bonding means; a motor, supported by said frame, for driving said blade; means, supported by said frame, for continuously cooling said blade to keep said bonding means from deteriorating due to heat thereby minimizing failure of said bonding means to hold said segments to said core during operation, said cooling means including means for ejecting an air and water mist onto said blade, said blade, said motor, and said cooling means being supported by said frame to make said machine self-contained.

Claim 3

A machine in accordance with claim 1 wherein said ejecting means includes a nozzle which combines pressurized water and pressurized air to create the mist.

Claim 4

A machine in accordance with claim 2 wherein said cooling means includes an air compressor supported by said frame, said compressor being continuously driven by said motor to provide a continuous stream of pressurized air to said nozzle.

Claim 5

A machine in accordance with claim 2 wherein said cooling means includes a reservoir of water supported by said frame at a height above said nozzle, said height providing water pressure to force said water through said nozzle.

Claim 6

A machine in accordance with claim 1 including a blade cover for said blade and wherein said ejecting means includes a pair of fluid directing blocks and means for attaching each of said blocks to a side wall of said blade cover, one of said blocks being attached to a side wall on one side of said blade and the other of said blocks being attached to a side wall on the opposite side of said blade, each of said blocks including means for directing water and air in the form of a mist toward a side of said blade in the vicinity of said cutting segments, whereby the water and air mist is directed toward both sides of said blade in the vicinity of said segments to cool said core, said segments and said bonding means.

Claim 7

A machine in accordance with claim 5 wherein said directing means includes in each block a downwardly directed first channel for water and a second channel for air, said second channel being directed generally perpendicularly toward said blade, the water from said first channel draining into air flow from said second channel.

Claim 8

A self-contained machine for making a cut in a concrete or asphalt surface, comprising: a wheeled frame; a cutting blade rotatably attached to said frame, said blade having diamond containing elements fitting within circumferentially spaced grooves about a core, said blade further including means for bonding each of said elements in one of said grooves to said core; means for cooling said blade to keep said bonding means from deteriorating due to heat thereby minimizing failure of said bonding means to hold said segments to said core during operation, said cooling means including means for ejecting pressurized air and pressurized water in the form of a mist against said blade, said cooling means also including an air compressor supported by said frame for providing the pressurized air, said cooling means further including a reservoir of water supported by said frame at a height above said ejecting means for providing said pressurized water; and a motor for driving said blade and said air compressor.

Claim 9

A self-contained machine for making a cut in a concrete or asphalt surface, comprising: a wheeled frame; a cutting blade rotatably attached to said frame, said blade having diamond containing elements fitting within circumferentially spaced grooves about a core, said blade further including means for bonding each of said elements in one of said grooves to said core; means for cooling said blade to keep said bonding means from deteriorating due to heat thereby minimizing failure of said bonding means to hold said segments to said core during operation, said cooling means including means for ejecting pressurized air and pressurized water in the form of a mist against said blade, said cooling means also including an air compressor supported by said frame for providing the pressurized air, said cooling means further including a reservoir of water supported by said frame at a height above said ejecting means for providing said pressurized water; and a motor for driving said blade and said air compressor.

Claim 10

A machine in accordance with claim 7 including a blade cover for said blade and wherein said ejecting means includes a pair of fluid directing blocks and means for attaching each of said blocks to a side wall of said blade cover, one of said blocks being attached to a side wall on one side of said blade and the other of said blocks being attached to a side wall on the opposite side of said blade, each of said blocks including means for directing water and air toward a side of said blade in the vicinity of said cutting elements, whereby the water and air is directed toward both sides of said blade in the vicinity of said elements to cool said core, said elements and said bonding means.

Claim 11

A machine in accordance with claim 8 wherein said ejecting means includes in each block a first channel for water and a second channel for air, said first channel being directed downwardly at an angle greater than 45 degrees relative to the horizontal, said second channel being directed generally perpendicularly toward said blade, the water from said first channel draining into air flow from said second channel.