A method for installing pipeline segments within a conduit. The method includes a step of securing a first pipe segment of the pipeline segments at a top end of the conduit, a step of aligning a main axis of a second pipe segment of the pipeline segments with the main axis of the pipeline, a step of lifting the second pipe segment from a first position associated with a bottom end of the conduit to a second position adjacent to the first pipe segment, a step of abutting a top rim of the second pipe segment against a bottom rim of the first pipe segment, and a step of attaching the top rim of the second pipe segment to the bottom rim of the first pipe segment.

Losses in the connecting line between the Pressure Wave Generator and the cold head of a GM type pulse tube refrigerator, are reduced while maintaining or improving upon the desirable features of a standard corrugated hose connecting line including vibration isolation, separation distance, and mounting convenience. The basic means are to reduce the internal void volume of the convolutions in a corrugated hose in combination with reducing the number of corrugations, adding fillers to the void volumes, and vibration absorbing coatings.

A metal to composite tube joint including an elongated interior fitting constructed with an exterior barrel, reduced in exterior diameter to form a distally facing annular shoulder and then projecting still further distally to form an interior sleeve having a radially outwardly facing bonding surface. An elongated metal outer sleeve formed proximally with a collar constructed for receipt over the barrel and increased in interior diameter and projecting distally to form an exterior sleeve having a radially inwardly facing bonding surface cooperating with the first bonding surface to form an annulus receiving an extremity of a composite tube and a bond bonding the extremity of the tube to the bonding surfaces.

A method for installing pipeline segments within a conduit. The method includes a step of securing a first pipe segment of the pipeline segments at a top end of the conduit, a step of aligning a main axis of a second pipe segment of the pipeline segments with the main axis of the pipeline, a step of lifting the second pipe segment from a first position associated with a bottom end of the conduit to a second position adjacent to the first pipe segment, a step of abutting a top rim of the second pipe segment against a bottom rim of the first pipe segment, and a step of attaching the top rim of the second pipe segment to the bottom rim of the first pipe segment.

A device for connecting two tubular pipe elements, including a hollow cylindrical coupling device (4) with a hollow cylindrical first coupling device part (5) arranged on a first pipe element (2), and a hollow cylindrical second coupling device part (6) arranged on the second pipe element (3) that is axially connected to the first pipe element (2), wherein at least one first positive-locking element (7) is arranged on the first coupling device part (5) and at least one second positive-locking element (8) is arranged on the second coupling device part (6). The at least one first positive-locking element (7) arranged on the first coupling device part (5) and the at least one second positive-locking element (6) arranged on the second coupling device part (6) are designed to engage in a positive-locking manner, forming an axial connection of the first coupling device part (5) with the second coupling device part (6).

A composite torque pipe to metal fitting joint including concentric inner and outer shells formed with respective smooth conical surfaces projecting distally and respectively tapered radially inwardly and radially outwardly to form an annulus expanding in thickness for receipt of a tapered connector ring complementally shaped at one end of a composite pipe and bonded along the interface. The present invention includes selecting the sleeves with the corresponding shells and, forming the torque pipe with the tapered ring and bonding the tapered ring in the annulus.

A housing component includes a line segment of a hydraulic line. The line segment has at least one channel that opens into a widening. The widening extends to outside of the housing component. A spatially limited sealing surface enclosing the channel is provided in the widening. A seal comprising an adhesive is joined to the sealing surface at least adhesively. A method for manufacturing such a housing component includes layered manufacture of the sealing surfaces.

A method for erecting or assembling a frame includes the steps of: forming a joint with at least two frame members placed at an angle to one another, each frame members is a metal tube, no coping nor fittings are used to form the joint; welding the frame members together at the joint; wrapping the joint with a saddle, the saddle is a bent flat metal member with at least one hole overlaying each frame member; and fastening the saddle to each frame member by inserting a screw through each hole.

A plug unit for connecting capillary tubes includes a plug housing that has an axial borehole, a plug capillary tube that projects through the axial borehole, and a sealing element that surrounds the plug capillary tube. The front end of the plug capillary tube is sealed by an elastic and/or plastic deformation of the sealing element against the capillary tube receptacle opening of a bushing unit. A hollow cylindrical pressure piece is provided that surrounds the sealing element in an axial region facing away from the end surface of the plug capillary tube, and the pressure piece has a rearward end side that faces away from the end surface of the plug capillary tube and that can be loaded by the plug housing with an axial pressure force when the plug unit and bushing unit are connected.

A vacuum joint has a simple structure and thus is capable of connecting and disconnecting vacuum pipes very easily and quickly. A vacuum utilization device includes this vacuum joint. A vacuum joint of the present invention includes: a first coupling member having a tubular shape and adapted to be attached to a connection end of a vacuum pipe; and a second coupling member having a tubular shape and adapted to be attached to a connection end of a vacuum pipe. The first coupling member has an axial front end with a substantially flat contact surface that contains a ferromagnetic material, and the second coupling member has an axial front end with a substantially flat contact surface that contains a ferromagnetic material. At least one of the contact surface of the first coupling member and the contact surface of the second coupling member includes a magnet.