Abstract: A hydraulic connector having a first assembly releasably connected to a second assembly. The first assembly includes a substantially cylindrical body having a longitudinal bore therethrough and a receptacle portion surrounding the longitudinal bore. The first assembly has an internal circumferential chamber therein. The chamber has an upper portion and a lower portion. The second assembly includes a substantially cylindrical body having a longitudinal bore therethrough and a protruding portion having an external circumferential groove. A movable locking ring is housed in the lower portion of the chamber. The locking ring has a first surface to matingly engage the circumferential groove. A piston is slidably received in the chamber. The piston is permitted to move axially relative to the first assembly. The piston has an upper head and a lower head connected by a sleeve segment. The piston and the chamber form individual chambers for locking and unlocking.

Abstract: A hydraulic connector having a first assembly releasably connected to a second assembly. The first assembly comprises a substantially cylindrical body having a longitudinal bore therethrough and a receptacle portion surrounding the longitudinal bore. The first assembly has an internal circumferential chamber therein. The chamber has an upper portion and a lower portion. The second assembly comprises a substantially cylindrical body having a longitudinal bore therethrough and a protruding portion having an external circumferential groove. A movable locking ring is housed in the lower portion of the chamber. The locking ring has a first surface to matingly engage the circumferential groove. A piston is slidably received in the chamber. The piston is permitted to move axially relative to the first assembly. The piston has an upper head and a lower head connected by a sleeve segment. The piston and the chamber form individual chambers for locking and unlocking.