In various embodiments, a tubular comprises a tubular outer sheath defining an inner void; one or more core elements or assemblies disposed within the inner void; and a substantially solid filler in various embodiments disposed within and substantially filling the inner void, where the filler is adapted to give the tubular hoop strength in a crush situation and comprises a polymer with a density of at least 1.0. In some embodiments, these core assemblies comprise an extruded polymer layer typically extruded about core elements in a single pass, fitting about them without a sharp edge and defining an outer shape. The resulting tubular can comprise multiple regions which, though substantially filled, are filled with differing fillers densities.

A filter arrangement for threadably securing to a filter head includes a housing having a surrounding wall defining an interior volume, an open mouth providing access to the interior volume and an end opposite of the open mouth. The surrounding wall has an exterior and an interior. A filter media construction is operably held within the interior volume. A sleeve, distinct from the housing, is secured to the exterior of the surrounding wall adjacent to the housing mouth and extending partially along the surrounding wall. The sleeve has an exterior and an interior. The exterior of the sleeve defines mounting threads constructed and arranged to removably mount with the filter head, when the filter arrangement is secured to the filter head. The interior of the sleeve is against the exterior of the surrounding wall. A first seal member is oriented against the sleeve to create a seal with a filter head, when the filter arrangement is secured to the filter head. A filter assembly includes a filter arrangement and a filter head. The filter arrangement is removably secured to the filter head by a threaded connection between the sleeve and the filter head. A system includes an engine utilizing a liquid and a filter assembly in fluid communication with the engine to filter the liquid. Methods of making filter arrangements include utilizing structures characterized above.

A filter arrangement for threadably securing to a filter head includes a housing having a surrounding wall defining an interior volume, an open mouth providing access to the interior volume and an end opposite of the open mouth. The surrounding wall has an exterior and an interior. A filter media construction is operably held within the interior volume. A sleeve, distinct from the housing, is secured to the exterior of the surrounding wall adjacent to the housing mouth and extending partially along the surrounding wall. The sleeve has an exterior and an interior. The exterior of the sleeve defines mounting threads constructed and arranged to removably mount with the filter head, when the filter arrangement is secured to the filter head. The interior of the sleeve is against the exterior of the surrounding wall. A first seal member is oriented against the sleeve to create a seal with a filter head, when the filter arrangement is secured to the filter head. A filter assembly includes a filter arrangement and a filter head. The filter arrangement is removably secured to the filter head by a threaded connection between the sleeve and the filter head. A system includes an engine utilizing a liquid and a filter assembly in fluid communication with the engine to filter the liquid. Methods of making filter arrangements include utilizing structures characterized above.

An assembly, which consists of a flexible tubular pipe (1) for transporting hydrocarbon fluids including a metal carcass (10) produced by the short pitched helical winding of a profiled strip, the said strip defining a plurality of intervening gaps (10a) between each winding turn (10b), an inner polymeric sealing sheath, at least one metal armor layer, and an outer polymeric sheath, and of a secondary metal tube (2) coaxial to the tubular pipe (1).

A filter arrangement for securing to a filter head includes a housing having a surrounding wall defining an interior volume; an open mouth providing access to the interior volume, and an end opposite of the open mouth. Filter media is within the interior volume. A ring is secured to the wall adjacent to the mouth. An exterior of the ring has mounting threads to mount with the filter head when the filter arrangement is secured to the filter head. A first seal member is against the ring to create a seal with the filter head, when the filter arrangement is secured to the head. A seam is over an end portion of the ring to axially secure the ring to the housing. A groove is within the ring and facing outward holding a second seal member. A seal is formed between and against the seam and the second seal member.

A catheter comprises a flexible polymer catheter body including a proximal shaft section and a distal working section, a wire support structure embedded within the distal working section of the catheter body, a proximal adapter mounted to the proximal shaft section of the catheter body, and a wire disposed within the catheter body. The wire has a proximal end and a distal end. The proximal end of the wire being operably connected to the proximal adapter, and the distal end of the wire is anchored to the wire support structure.

A tank for transporting a liquid is disclosed. In some implementations, the tank includes a carrier having a plurality of compartments, each compartment of the plurality of compartments having an opening for containing one or more baffles. In some implementations, the tank includes a plurality of posts that are securable relative to the tank and configured to support the one or more baffles. In some implementations, the posts are removed from the tank to facilitate installation of the baffles. In some implementations, the posts are rotatable to facilitate installation of the baffles. In some implementations, the tank is a two-piece tank which facilitates access to the one or more baffles.