Patent ID: 7040214

Claim:
A manifold for providing pressurized hydraulic fluid in a hydraulic system used for engaging and disengaging construction or demolition equipment, wherein the system has a reservoir, a pump and reciprocating hydraulic cylinder with a double-acting piston therein defining an extension chamber and a retraction chamber, wherein the manifold is comprised of a block having: a) an extension passageway adapted to be in fluid communication with the extension chamber of the hydraulic cylinder, wherein the extension passageway has an extension chamber port and a fluid supply port; b) a retraction passageway adapted to be in fluid communication with the retraction chamber of the hydraulic cylinder, wherein the retraction passageway has a retraction chamber port and a fluid discharge port; c) a regeneration passageway connecting the extension passageway and the retraction passageway with a check valve therein permitting flow in a single direction from the retraction passageway to the extension passageway to augment flow into the extension chamber from the retraction passageway; and d) wherein the block further includes a swivel attachment comprised of a non-rotating base with a bore extending therein and having a central axis extending therethrough and wherein a cylindrical horn is mounted within the bore such that the horn may rotate within the base thereby providing a manifold with a rotating block.