| Patent Number |
Title Of Patent |
Date Issued |
| D346104 |
Portable concrete saw |
April 19, 1994 |
|
| D337037 |
Portable flat concrete saw |
July 6, 1993 |
|
| 5241946 |
Saw for green and cured concrete |
September 7, 1993 |
| A saw for grooving concrete includes a base supported by a plurality of wheels such that a cutting guide of the base may press against the green concrete with a predetermined load. A cutter frame is pivotally mounted to the base and includes a cutting blade and drive means mounted theret |
| 5181348 |
Abrasive cleaning apparatus |
January 26, 1993 |
| The abrasive cleaning device operates to direct streams of abrasive particles from a plurality of nozzles against a surface to be cleaned. The nozzles are recessed in a nozzle chamber and each receives a separate stream of abrasive particles from a divider unit. The divider unit rece |
| 4986604 |
Roadway grooving apparatus |
January 22, 1991 |
| A machine for cutting transverse grooves in a concrete road surface includes a rotary cutter head supported on a carriage that can be shifted longitudinally along the machine frame structure. By using a combination of motions of the frame structure and cutter head carriage it is possible |
| 4968099 |
Fluid control system for roadway grooving apparatus |
November 6, 1990 |
| A machine for cutting spaced grooves in a concrete road surface includes at least two laterally-spaced hydraulic cylinders which apply downward operating forces on a travelling cutter head. Each cylinder is individually pressurized through a pressure line that incorporates a pressure |
| 4921308 |
Mobile machine suspension system |
May 1, 1990 |
| An improved suspension system for a mobile machine adapted to work a material associated with a horizontal surface includes a frame mounting a prime mover. An arbor shaft extends transversely across the frame adjacent to a front end of the machine and is drivingly connected to the prime |
