Patent ID: 8739638

Claim:
A fluid flow tool for use in making differential measurements of flow attributes, comprising: a plate shaped structure having a ring portion defining a flow hole therethrough, a support portion coupled to and extending radially away from said ring portion and adapted to be coupled to an exterior wall of a conduit, and a plurality of extensions coupled to and extending radially away from said ring portion, said extensions being distributed about said ring portion in a spaced apart fashion wherein a periphery of said plate shaped structure is defined by said extensions and trough regions formed at said ring portion between adjacent ones of said extensions; at least one measurement port formed in said ring portion and in fluid communication with said flow hole; a first manifold formed in said plate shaped structure and in fluid communication with said at least one measurement port so-communicating with said flow hole, said first manifold extending through said plate shaped structure to terminate and be accessible at the exterior wall of the conduit; at least one measurement port formed in said periphery of said plate shaped structure; and a second manifold formed in said plate shaped structure and in fluid communication with said at least one measurement port so-formed in said periphery, said second manifold extending through said plate shaped structure to terminate and be accessible at the exterior wall of the conduit.