A method of constructing an inflatable fluidic actuator. The method includes coupling a first interface to a tube configuration of membrane material at a first tube end by coupling the first interface to the tube configuration at the first tube end by generating at least one of: a first bond between the membrane material and one or more first sidewalls of the first interface and a first external face bond between membrane material at the first tube end onto a first external face of the first interface.

The present invention relates generally to coated abrasive articles, such as coated abrasive film belts having improved strength and durability, as well as methods of making and using said coated abrasive articles.

The present invention relates generally to coated abrasive articles, such as coated abrasive film belts having improved strength and durability, as well as methods of making and using said coated abrasive articles.

Disclosed is a machine for generating re-closable packages. According to one embodiment the machine includes a forming tube configured to impart a tubular shape to a continuous film, a driving module that moves the film tube in a forward movement direction at a first forward movement speed, a longitudinal sealing tool for sealing the longitudinal ends of the film with a tubular shape, a film tube being generated. The machine includes a first driving assembly for moving the film tube in the forward movement direction at a second forward movement speed, and a transverse sealing and cutting tool for transversely sealing and cutting the film tube, a package being obtained as a result. The machine also includes a second driving assembly located upstream the longitudinal sealing tool and configured for moving the re-closable strip at a third forward movement speed, the first, second and third forward movement speeds being equal.

A method of constructing an inflatable fluidic actuator that includes generating a tube configuration with one or more shapes of fluid-impermeable membrane material, the tube configuration having a first tube end and a second tube end and an internal tube face and an external tube face. The method also includes coupling a first and second interface to the tube configuration at the first and second tube ends by respectively coupling each interface to the tube configuration at a respective tube end by generating at least one of: a first circumferential bond between the fluid-impermeable membrane material and one or more sidewalls of the interface; and an external face bond between fluid-impermeable membrane material at the tube end onto an external face of the interface.

A method and apparatus in the manufacture of a spirally wound and welded tube is disclosed. A thermoplastic profile is slid along a path on a slider arranged in an axial direction of the tube and defining a cylindrically shaped winding surface with a diameter corresponding to the inner diameter of the tube to be manufactured. The profile is directed along a spiral path towards a previous turn of said profile by means of radial rollers spaced along said spiral path by adjusting the position of the rollers: Opposite edges of said profile turns are welded together by providing an extruded welding mass between said profile turns. The welded tube is fed from the welding station by means the rollers by sliding it onto a rotating support.

A method and a device for repairing portions of channels, including non-round channels, is provided by a wound tube wound from a profile strip by a winding machine, the abutting edges of which strip are formed into tight joints, locked inside the wound tube which can be introduced into the portion of the channel to be repaired. A plastic profile strip is drawn from a storage spool and fed to a winding machine arranged in front of one of the openings of the channel to be repaired, the winding machine having a guide rail adapted to the cross-portion of the channel, and adjacent edge regions fed onto this rotating winding former locked in an overlapping manner to form a wound pipe and the pipe is pushed or pulled into the channel portion.

A thin ribbon spirally wound polymer conduit and method of forming, wherein a helical reinforcing bead is interposed adjacent overlapping layers of ribbon. Further, a method of continuously forming spirally wound conduit wherein a sacrificial layer, preferably having a different base polymer to that of the conduit, is first applied to the former before the conduit is formed overtop.

A limb for a breathing circuit manufactured from very thin walled polymer materials has an elongate axial reinforcing spine lying freely inside the conduit and fixed to each end connector. The spine is laterally compliant but axially stiff. The spine provides resistance to tensile and compressive loads on the conduit, including that induced by prevailing internal pressures.

A limb for a breathing circuit manufactured from very thin walled polymer materials has an elongate axial reinforcing spine lying freely inside the conduit and fixed to each end connector. The spine is laterally compliant but axially stiff. The spine provides resistance to tensile and compressive loads on the conduit, including that induced by prevailing internal pressures.