A flexible joint includes a pair of generally tubular members and a ring (e.g., gimbal ring). The tubular members are pivotally connected to the ring by pivot pins such that the pivot axes of the tubular members is generally perpendicularly related to each other to form a hinge. A support structure may interconnect the pivot pins and may be configured to support the pivot pins across the joint to maintain a generally perpendicular hinge orientation. A conduit may connect the tubular members.

A fluid swivel (100) comprising a first part (100a) and a second part (100b) configured to mutually rotate about a common center axis (A). The swivel (100) has a central bore (101) configured to accommodate a fluid to be transported through the fluid swivel (100). A central member (12) is arranged in the central bore (101), and the center axis (A) extend through the central member. A hydraulic line (43, 53) extends from the first part (100a) to the second part (100b) through the central member (12).

A hose assembly, preferably a garden hose assembly, including a jacketed tube that is lightweight, durable and versatile. The tube is able to expand longitudinally along the length-wise axis of the hose between hose ends, as well as radially or circumferentially, to an expanded state in response to application of at least a minimum fluid pressure to an inner tube of the hose. Once the fluid pressure falls below the minimum fluid pressure, the hose assembly will contract. The two layer construction of the hose assembly allows for storage in relatively compact spaces, similar flow rates, approximately one-half the weight, and improved maneuverability when compared to conventional hose constructions. In one embodiment the jacket is formed around the tube in a continuous process that welds a material, preferably using hot air, into the jacket. The welded joint forms a region of jacket that is preferably about twice the thickness of the rest of the jacket. This thicker region results in a stiffer section of jacket that makes the hose more controllable and consistent in use.

A hose repair kit includes a retaining sleeve having a first opening to receive an end of a hose. There is a swivel coupling inserted into a second end of the hose retaining sleeve to engage with the hose. The swivel coupling includes a first annular member with an annular barb at one end and a socket to receive a key at a second end. There is an annular retaining ring groove with a retaining ring therein. A second annular member receives, within an internal bore having an annular recess, the first annular member and the retaining ring engages the annular recess to secure the first annular member to the second annular member. The surface of the bore is frusto-conically shaped allowing the retaining ring to be compressed as it travels into the bore until it reaches the annular recess and expands into and is seated in the annular recess.

A fitting has a first housing including a first body and a second body. The first body defines a first channel and a second channel, and second body defines a third channel that is co-planar with the first channel and a fourth channel that is co-planar with the first channel. First bearings are disposed within the first channel and the third channel, where the first bearings rotatably coupled the first housing to the second housing. Additionally, second bearings are disposed within the second channel and the fourth channel, the second bearings rotatably coupling the first housing to the second housing. A plug couples to the first housing, a gasket is disposed between the plug and the first housing, and a passage is defined at least in part by the first housing, the second housing, and the plug.

A flexible joint includes a pair of generally tubular members and a ring (e.g., gimbal ring). The tubular members are pivotally connected to the ring by pivot pins such that the pivot axes of the tubular members is generally perpendicularly related to each other to form a hinge. A support structure may interconnect the pivot pins and may be configured to support the pivot pins across the joint to maintain a generally perpendicular hinge orientation. A conduit may connect the tubular members.

A rotatable connector for connecting a fluid transmission pipe has simplified structure and is easy to assemble. An inner threaded portion of a first covering ring and an outer threaded section of a second covering ring are screwed with each other, a third plastic ring arranged at a bottom surface of an outer threaded portion of the first covering ring is abutted against a first plastic ring arranged at an end of a barrel having an upper opening, and a fourth plastic ring arranged on an inner shoulder portion of the second covering ring is abutted against a bottom portion of the second convex ring so that the barrel is fastened by the first covering ring and the second covering ring. The barrel is capable for being rotated relative to the first covering ring or the second covering ring due to the smooth plastic material of the plastic rings.

A rotary joint including a stator and a rotor, each having at least one fluid channel, and a fluid transfer interface between the stator and the rotor, via which a fluid flows from the fluid channel in the stator into the fluid channel in the rotor, the fluid transfer interface being sealed off with respect to the surrounding environment by a mechanical seal, which comprises an abrasive sliding ring, and the sliding ring bears in an axial direction in an elastically biased manner against at least one mating ring and forms a seal face therewith. An axial displacement detection device is provided, which is designed to detect, in the event of wear on the sliding ring, an associated axial displacement of the stator and/or rotor. The axial displacement detection device comprises a rotary encoder on the rotor and a sensor that detects a position of the rotary encoder.

The present invention relates to a drill wash device (100), the drill wash device comprising a stationary washpipe (102), a rotating washpipe (103), a pre-mounted, replaceable exchange insert (1) for connecting the stationary washpipe (102) to the rotating washpipe (103), the exchange insert (1) comprising a mechanical seal assembly with a stationary seal ring (20) and a rotating seal ring (21), and a first adapter (108) which is arranged between the stationary washpipe (102) and the exchange insert (1), wherein the first adapter (108) comprises a first adjusting mechanism (116) operative in axial direction for changing an axial length of the first adapter (108), and wherein the exchange insert (1) comprises a second adjusting mechanism (6) operative in axial direction for changing an axial length of the exchange insert (1).

An oil transfer assembly has a fixed structure, with at least one inlet for receiving lubricating oil, and an interface member rotating about an axis and having a front face, from which at least one duct starts for conveying the lubricating oil; the assembly is provided with a slide having an annular chamber, which is delimited axially, on one side, by the front face and connects the inlet with the duct; the slide is coupled to the front face so as to guarantee a seal for the fluid of the annular chamber and engages a guide seat provided in the structure in an axially sliding manner.