A coupling device configured to couple first and second pipes, which comprises a first part coupled to the first pipe and which has a first contact surface, a second part coupled to the second pipe, separate from the first part, and which has a second contact surface configured to collaborate with the first contact surface, at least one clamp comprising at least one clamping jaw comprising a groove, configured to collaborate with the first and second parts, which has a cross section such that a concentric tightening of the clamp causes the first and second contact surfaces to be kept pressed against one another. Thus, the coupling device makes it possible to obtain a ball joint type connection between the first and second pipes.

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.

A connector assembly for connection to a preconditioned air port on an aircraft that includes a rotatable coupling, a retractable latch, and a protective cage. The rotatable coupling has an upper coupling section with a circumferential ring on the exterior surface rotatably connected to a flanged surface on a lower coupling section. The lower coupling section includes a lower and adapted to be connected to the air duct. The retractable latch is actuated by rotation of the protective cage relative to the upper coupling section. The retractable latch is attached to the exterior of the upper coupling section and has a latching end and a pin on the other end. The protective cage has two or more circumferential slots and a guide slot on the interior surface. When the rotatable coupling is installed in the protective cage, the pin is inserted in the guide slot and the ring and flange are slidably inserted in the circumferential slots between an open position, wherein the retractable latch is disengaged, and a closed position, in which the retractable latch is engaged with the preconditioned air port. The protective cage surrounds the notable coupling and includes at least a first and second protective bumper at opposite ends of the protective cage. The protective cage extends over the duct connection to surround and protect the connection from coming in contact with the ground.

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 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.

There is provided a connection structure for fire extinguishing system piping with which stable sealing performance can be obtained, due to screw engagement, by connection work carried out even by an unskilled worker and with which secure engagement of the connection portion can be confirmed easily.

In a connection structure for fire extinguishing system piping in which a male piping member is connected to a connection opening portion of a multi-port joint T by screwing a male thread and a female thread together, the male piping member includes a joint cylinder having a protruding portion that is inserted deeper into the connection opening portion than the female thread. The male piping member also includes the sealing members and that seal the engagement portion between the male thread and the female thread to prevent water leakage into the inside of the connection opening portion. The male piping member includes a step portion, and the connection opening portion includes a step portion. The connection structure further includes an indicator that engages the step portions and in a state in which the male piping member and the connection opening portion are connected together.

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.

A connection device, in particular for the realization of a rotary connection for a connection component (71, 89), with a housing (1), which comprises a connection point (7) for a fluid conveying conduit, such as a pneumatic line, and a bearing arrangement (31), by means of which an axial or shaft-type connecting part (24) is mounted so as to be rotatable relative to the housing (1), said connecting part comprising an additional connection point (27) for the connection component (71, 89), is characterized in that the bearing arrangement (31) comprises at least one rolling bearing (35), which is in contact with the housing (1) via the outside of its outer race (55) and with the rotatable connecting part (24) via the outside of its inner race (49).

A connection device for the fluidic connection of a suction tube to a function unit. The connection device includes a first hollow-cylindrical connection section and a second hollow-cylindrical connection section. One of the connection sections is connectable or connected to the suction tube and the other connection section is connectable or connected to the function unit. One of the connection sections is located at least partly within the other connection section and with its outer periphery bears on the inner periphery of the other connection section, where the two connection sections are rotatably mounted, in order to provide a rotation compensation for the suction tube, and where an electrical connection for providing an antistatic function exists between the two connection sections. The first connection section includes a spring section which is deformable in the radial direction and with which the bearing contact on the second connection element takes place.

A male swivel hose coupling includes a hollow tail piece having a receiving portion and a stem and a hollow collar having a threaded portion. The collar is received over the receiving portion and is freely rotatable with respect to the receiving portion. The receiving portion of the tailpiece includes a rim and a shoulder, and the collar includes a lip and a shoulder. The rim of the receiving portion forms a first stopping surface for engaging the lip and the shoulder of the receiving portion forms a second stopping surface for engaging the shoulder of the collar.