A cleanable respiratory tube is provided. The cleanable respiratory tube comprises a corrugated tube adapted for conveying gases to and/or from a patient. The corrugated tube has a first and a second fitting at a first and a second end thereof, respectively. A sheath having a smooth cleanable outer surface encases the corrugated tube. A first and a second end of the sheath is fixedly attached to the respective first and second fitting. The sheath is made of a flexible foil-type sheet material surrounding the corrugated tube having an inside diameter approximately equal to an outside diameter of ridges of the corrugated tube such that the sheath is in a touching relationship therewith.

This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

A mask system and an air delivery conduit for use in the treatment of respiratory disorders. The air delivery conduit may comprise a textile having an airtight arrangement. A support structure may be provided to the conduit to provide form.

A mask system and an air delivery conduit for use in the treatment of respiratory disorders. The air delivery conduit may comprise a textile having an airtight arrangement. A support structure may be provided to the conduit to provide form.

A hose arrangement (1) having a hose (2), which has at least one bending portion (3) and at least one plug-on portion (4), and at least one connection element (5) onto which the plug-on portion (4) can be or is plugged in a use position, a minimum inside diameter (6) of a cross section of the at least one bending portion (3) being matched to a minimum inside diameter (7) of a cross section of a connecting portion of the at least one connection element (5) or a minimum inside diameter (6) of a cross section of the at least one bending portion (3) not being greater, in particular being smaller, than a minimum inside diameter (7) of a cross section of a connecting portion of the at least one connection element (5).

A hose arrangement (1) having a hose (2), which has at least one bending portion (3) and at least one plug-on portion (4), and at least one connection element (5) onto which the plug-on portion (4) can be or is plugged in a use position, a minimum inside diameter (6) of a cross section of the at least one bending portion (3) being matched to a minimum inside diameter (7) of a cross section of a connecting portion of the at least one connection element (5) or a minimum inside diameter (6) of a cross section of the at least one bending portion (3) not being greater, in particular being smaller, than a minimum inside diameter (7) of a cross section of a connecting portion of the at least one connection element (5).

The present invention discloses a telescopic hose and the process technology thereof. The telescopic hose comprises an elastic support member that can be configured to conduct strong electricity; the support member comprises a first wire and a second wire, and the first wire and the second wire are arranged in a double helix structure in cooperation with each other; a hose wall that is wrapped around the outer side of the support member, and at least part of the hose wall between the first wire and the second wire forms a corrugated portion. Through the setting of the above structures, the hose can not only conduct strong electricity, but also stretch back and forth and turn at any angle. In addition, the hose structure is relatively simple, the amount of gas and liquid passing per unit time is larger.

The present invention discloses a telescopic hose and the process technology thereof. The telescopic hose comprises an elastic support member that can be configured to conduct strong electricity; the support member comprises a first wire and a second wire, and the first wire and the second wire are arranged in a double helix structure in cooperation with each other; a hose wall that is wrapped around the outer side of the support member, and at least part of the hose wall between the first wire and the second wire forms a corrugated portion. Through the setting of the above structures, the hose can not only conduct strong electricity, but also stretch back and forth and turn at any angle. In addition, the hose structure is relatively simple, the amount of gas and liquid passing per unit time is larger.

Provided is a device for automatic refueling of a vehicle that includes a nozzle having a flexible filler pipe with an open end. The filler pipe is inserted, with the open end first, into the tank pipe to deliver fuel through the open end into the tank pipe. An axial pressure is applied to the filler pipe to insert the filler pipe into the tank pipe. The filler pipe includes an inner fuel pipe of flexible hard plastic material, and an outer metal coil or a series of metal rings. The metal coil or metal rings are arranged to run in parallel to and outside of the inner fuel pipe. The metal coil is arranged to run in and along a recess in the surface of the inner fuel pipe and the metal rings are disposed in a series of annular recesses in the surface of the fuel pipe.