ARTIFICIALLY GROOVED SHAKES

Brand	Owner	Address	Description
CERTIGROOVE	CEDAR SHAKE & SHINGLE BUREAU	300 - 34334 Forrest Terrace Abbotsford, BC V2S 1G7 Canada	ARTIFICIALLY GROOVED SHAKES;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A drill-string member includes at least one grooved portion on an outer surface thereof. A pair of axially spaced-apart grooved portions are typically provided, with two such pairs axially spaced along the longitudinal length of the member. A plurality of grooves are milled into the grooved portions, and the grooves intersect with one another to form a criss-cross pattern. As the member is rotated, fluid flows up the grooves, where fluid from one groove meets fluid from another groove at each intersection, causing turbulence to be created.