Pavement grooving process and apparatus

Claim 3

Concrete pavement grooving means comprising an elongate cylindrical roller rotatable about its axis and having a peripheral surface concentric with its axis of rotation and consisting essentially of smooth uninterrupted cylindrical peripheral surface areas with a plurality of spaced parallel circular circumferential ribs of shallow depth projecting radially outward from the peripheral surface perpendicular to said axis of rotation, means for adjustably pressing said roller onto newly laid pavement while still in plastic condition to embed said circular ribs therein to their full depth and to engage the intervening smooth cylindrical surface areas of the roller against the pavement surface, means for rotating said roller concentrically about its axis in a direction and at a peripheral speed for producing differential rotation of the roller relative to the pavement while the same is so pressed onto the pavement, and means for simultaneously bodily moving said roller over the pavement.

Claim 4

Concrete pavement grooving means comprising an elongate cylindrical roller rotatable about its axis and having a peripheral surface concentric with its axis of rotation and consisting essentially of smooth uninterrupted cylindrical peripheral surface areas with a plurality of spaced parallel circular circumferential ribs of shallow depth projecting radially outward from the peripheral surface perpendicular to said axis of rotation, means for adjustably pressing said roller onto newly laid pavement while still in plastic condition to embed said circular ribs therein to their full depth and to engage the intervening smooth cylindrical surface areas of the roller against the pavement surface, means for rotating said roller concentrically about its axis in a direction and at a peripheral speed for producing differential rotation of the roller relative to the pavement while the same is so pressed onto the pavement, and means for simultaneously bodily moving said roller over the pavement.

Claim 5

Concrete pavement grooving means comprising a plurality of rollers each mounted to extend transversely over respective transverse areas of the pavement for forming grooves longitudinally in selected areas of the pavement, each roller comprising an elongate cylindrical roller rotatable about its axis and having a peripheral surface concentric with its axis of rotation and consisting essentially of smooth uninterrupted cylindrical peripheral surface areas with a plurality of spaced parallel circular circumferential ribs of shallow depth projecting radially outward from the peripheral surface perpendicular to said axis of rotation, means for adjustably pressing said rollers onto newly laid pavement while still in plastic condition to embed said circular ribs therein to their full depth and to engage the intervening smooth cylindrical surface areas of the rollers against the pavement surface, means for rotating said rollers concentrically about their axes in a direction and at a peripheral speed for producing differential rotation of the rollers relative to the pavement while the same are so pressed onto the pavement, and means for simultaneously bodily moving said rollers over the pavement.

Claim 6

Concrete pavement grooving means comprising a plurality of rollers each mounted to extend transversely over respective transverse areas of the pavement for forming grooves longitudinally in selected areas of the pavement, each roller comprising an elongate cylindrical roller rotatable about its axis and having a peripheral surface concentric with its axis of rotation and consisting essentially of smooth uninterrupted cylindrical peripheral surface areas with a plurality of spaced parallel circular circumferential ribs of shallow depth projecting radially outward from the peripheral surface perpendicular to said axis of rotation, means for adjustably pressing said rollers onto newly laid pavement while still in plastic condition to embed said circular ribs therein to their full depth and to engage the intervening smooth cylindrical surface areas of the rollers against the pavement surface, means for rotating said rollers concentrically about their axes in a direction and at a peripheral speed for producing differential rotation of the rollers relative to the pavement while the same are so pressed onto the pavement, and means for simultaneously bodily moving said rollers over the pavement.

Claim 7

Concrete pavement grooving means comprising an elongate cylindrical roller rotatable about its axis and having a peripheral surface concentric with its axis of rotation and consisting essentially of smooth uninterrupted cylindrical peripheral surface areas with a plurality of spaced parallel circular circumferential ribs of shallow depth projecting radially outward from the peripheral surface perpendicular to said axis of rotation, means for adjustably pressing said roller onto newly laid pavement while still in plastic condition to embed said circular ribs therein to their full depth and to engage the intervening smooth cylindrical surface areas of the roller against the pAvement surface, means for rotating said roller concentrically about its axis in a direction and at a peripheral speed for producing differential rotation of the roller relative to the pavement while the same is so pressed onto the pavement, means for simultaneously bodily moving said roller over the pavement, said roller being mounted to extend longitudinally of the pavement for forming grooves transversely in the pavement, means for engaging said roller with the pavement adjacent one longitudinal edge of the pavement, for moving said roller bodily across the pavement transversely thereof and for removing said roller from the pavement adjacent the other longitudinal edge thereof, and means mounting said roller for physical transport longitudinally of the pavement when the roller has been removed from the pavement.

Claim 8

Concrete pavement grooving means comprising an elongate cylindrical roller rotatable about its axis and having a peripheral surface concentric with its axis of rotation and consisting essentially of smooth uninterrupted cylindrical peripheral surface areas with a plurality of spaced parallel circular circumferential ribs of shallow depth projecting radially outward from the peripheral surface perpendicular to said axis of rotation, means for adjustably pressing said roller onto newly laid pavement while still in plastic condition to embed said circular ribs therein to their full depth and to engage the intervening smooth cylindrical surface areas of the roller against the pAvement surface, means for rotating said roller concentrically about its axis in a direction and at a peripheral speed for producing differential rotation of the roller relative to the pavement while the same is so pressed onto the pavement, means for simultaneously bodily moving said roller over the pavement, said roller being mounted to extend longitudinally of the pavement for forming grooves transversely in the pavement, means for engaging said roller with the pavement adjacent one longitudinal edge of the pavement, for moving said roller bodily across the pavement transversely thereof and for removing said roller from the pavement adjacent the other longitudinal edge thereof, and means mounting said roller for physical transport longitudinally of the pavement when the roller has been removed from the pavement.