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US 2003/0216113 A1Published application
Rumble strip cutter
OwnerJames F Maxwellinventor
Life of this patent
Estimating the term…
Abstract
An apparatus and method for milling rumble strips into a pavement surface with a cutting wheel. The cutting wheel has rows of a cutting and non-cutting surface and is rotated to alternately present and withdraw a cutting surface and a non-cutting surface to the asphalt and cut a periodic rumble strip pattern as the apparatus moves forward. This alternating pattern is achieved without any up and down motion of the cutting wheel, and the apparatus can be operated a relatively rapid speed.
Claims7
A milling apparatus for milling rumble strips into pavement comprising;
- a device for imparting forward motion to the milling apparatus,
- at least one cutting wheel comprising at least one cutting row of pavement cutters and non-cutting surface disposed transversely at a periphery of the cutting wheel to present alternating cutting and non-cutting surfaces as the cutting wheel rotates,
- a cutting wheel rotator for rotating the cutting wheel at a speed proportional to the forward motion and at a fixed distance above the pavement, such that the at least one cutting row is in turn presented into a cutting position for cutting into the pavement and then withdrawn from the cutting position to present the non-cutting surfaces to form periodic cut and uncut portions in the pavement.
A method for forming a rumble strip in pavement, the method comprising;
- rotating and moving at least one cutting wheel a fixed distance above a pavement surface, the cutting wheel comprising at least one cutting row of pavement cutters and at least one row of a non-cutting surface disposed transversely at a periphery of the cutting wheel to present alternating cutting and non-cutting surfaces as the cutting wheel rotates, the cutting wheel rotating at a speed proportional to the moving of the cutting wheel above the pavement such that the cutting rows are in turn presented into a cutting position for cutting into the pavement and then withdrawn from the cutting position as the non-cutting surfaces are presented to form periodic cut and uncut portions in the pavement.
Dependencies are inferred from the claim text.