Abstract: A foldable bicycle trailer has at least two main frames (1,2) disposed symmetrically about a central plane. These are connected by crossbars. The frames (1,2) stand on wheels (21,22) or on any other movable interface on its either side. The crossbars comprise a first element which is substantially flat in unfolded state, having at least two parallel foldable arms (9a, 10a) and a second element which is substantially upright in unfolded stage, also having at least two parallel foldable arms (11a, 12a). The foldable arms (9a, 10a, 11a, 12a) of each of first and second elements are connected by hinges (5, 6, 7,8) for connecting the foldable segments of each foldable arm.

Abstract: Disclosed herein is a pipe assembly comprising: a pipe with an electrically conductive wall with a thermally conductive outer coating; a first electrical connector that is arranged in electrical contact with the wall of the pipe; and a second electrical connector that is arranged in electrical contact with the wall of the pipe; wherein the first and second electrical connectors are arranged to support the flow of an electrical current through the wall of the pipe to thereby heat the wall of the pipe; and in use, the pipe is arranged to allow cooling of the outer surface of the wall of the pipe by the surrounding environment of the pipe when the outer surface of the wall of the pipe is hotter than its surrounding environment. Advantageously, embodiments provide an effective, efficient and less expensive technique for heating the pipe in order to remove deposits for the inner walls of the pipes. Applications include the subsea application of cooling oil well products for cold flow.

Abstract: A foldable bicycle trailer has at least two main frames (1,2) disposed symmetrically about a central plane. These are connected by crossbars. The frames (1,2) stand on wheels (21,22) or on any other movable interface on its either side. The crossbars comprise a first element which is substantially flat in unfolded state, having at least two parallel foldable arms (9a, 10a) and a second element which is substantially upright in unfolded stage, also having at least two parallel foldable arms (11a, 12a). The foldable arms (9a, 10a 11a 12a) of each of first and second elements are connected by hinges (5, 6, 7,8) for connecting the foldable segments of each foldable arm.

Abstract: Disclosed herein is a pipe assembly comprising: a pipe with an electrically conductive wall with a thermally conductive outer coating; a first electrical connector that is arranged in electrical contact with the wall of the pipe; and a second electrical connector that is arranged in electrical contact with the wall of the pipe; wherein the first and second electrical connectors are arranged to support the flow of an electrical current through the wall of the pipe to thereby heat the wall of the pipe; and in use, the pipe is arranged to allow cooling of the outer surface of the wall of the pipe by the surrounding environment of the pipe when the outer surface of the wall of the pipe is hotter than its surrounding environment. Advantageously, embodiments provide an effective, efficient and less expensive technique for heating the pipe in order to remove deposits for the inner walls of the pipes. Applications include the subsea application of cooling oil well products for cold flow.