An expander tool (1) includes a tool head (2) which includes expanding means (3) insertable inside the end of the pipe (P), and which includes a plurality of spreading elements (4) that are radially movable in relation to a center longitudinal axis (x) of the tool head (2) between a starting position (I) and an outwardly extended expansion position (II), and that have an outer spreading surface (5) configured to press against an interior surface of the end of the pipe (P). Expander tool (1) includes a piston (6) to spread spreading elements (4) by moving along the axis (x) from a retracted piston position (III) to a fully extended piston position (IV) against interior surfaces of the spreading elements (4), and an actuator (7) for moving piston (6). Outer spreading surfaces (5) include a circumferential groove (8) that leaves an undamaged smooth and intact surface to the inner surface.

An expander tool (1) includes a tool head (2) which includes expanding means (3) insertable inside the end of the pipe (P), and which includes a plurality of spreading elements (4) that are radially movable in relation to a center longitudinal axis (x) of the tool head (2) between a starting position (I) and an outwardly extended expansion position (II), and that have an outer spreading surface (5) configured to press against an interior surface of the end of the pipe (P). Expander tool (1) includes a piston (6) to spread spreading elements (4) by moving along the axis (x) from a retracted piston position (III) to a fully extended piston position (IV) against interior surfaces of the spreading elements (4), and an actuator (7) for moving piston (6). Outer spreading surfaces (5) include a circumferential groove (8) that leaves an undamaged smooth and intact surface to the inner surface.

A machine for conditioning pipes made of thermoplastic material, including a station for accumulating pipes made of thermoplastic material, at which the pipes are positioned side by side and parallel to one another and with a first predetermined direction of longitudinal extension, a plurality of operational stations for conditioning respective ends of the pipes made of thermoplastic material, positioned side by side along a second predetermined direction at right angles to the first direction, these operational stations including a station for forming bells on the ends, a positioning device designed to pick up a group of pipes for transferring it from one to the other of the above-mentioned stations.

A machine for conditioning pipes made of thermoplastic material, including a station for accumulating pipes made of thermoplastic material, at which the pipes are positioned side by side and parallel to one another and with a first predetermined direction of longitudinal extension, a plurality of operational stations for conditioning respective ends of the pipes made of thermoplastic material, positioned side by side along a second predetermined direction at right angles to the first direction, these operational stations including a station for forming bells on the ends, a positioning device designed to pick up a group of pipes for transferring it from one to the other of the above-mentioned stations.

A hydraulic tube expander includes expanding jaws engageable with an interior surface of a tube to expand the tube; a source of hydraulic fluid, a valve located between the source and the expanding jaws and a single-action release actuator operatively coupled to the valve. The valve is moveable between open and closed positions. In the closed position, hydraulic fluid can pass from the source to the expanding jaws and in the open position the hydraulic fluid can pass from the expanding jaws to the source. The actuator is movable between first and second positions. In the first position the valve is in the closed position. Movement of the actuator in a direction from the first position toward the second position moves the valve into the open position.

A hydraulic tube expander includes expanding jaws engageable with an interior surface of a tube to expand the tube; a source of hydraulic fluid, a valve located between the source and the expanding jaws and a single-action release actuator operatively coupled to the valve. The valve is moveable between open and closed positions. In the closed position, hydraulic fluid can pass from the source to the expanding jaws and in the open position the hydraulic fluid can pass from the expanding jaws to the source. The actuator is movable between first and second positions. In the first position the valve is in the closed position. Movement of the actuator in a direction from the first position toward the second position moves the valve into the open position.

A tapered implantable device includes an ePTFE tubular member having a tapered length portion. The tapered length portion provides rapid recovery properties. The tapered length portion can feature a microstructure that includes a multiplicity of bent fibrils.

A tapered implantable device includes an ePTFE tubular member having a tapered length portion. The tapered length portion provides rapid recovery properties. The tapered length portion can feature a microstructure that includes a multiplicity of bent fibrils.

An expansion tool includes a housing and an expansion head having a casing and jaws. The jaws are movable between a closed position and an expanded position relative to a longitudinal axis. Each jaw includes a first tapered portion defining a first length along the longitudinal axis, a first sizing portion extending parallel to the longitudinal axis from the first tapered portion and defining a second length along the longitudinal axis, a second tapered portion defining a third length along the longitudinal axis, and a second sizing portion extending parallel to the longitudinal axis from the second tapered portion and defining a fourth length along the longitudinal axis. The first sizing portions define a first diameter and the second sizing portions define a second diameter greater than the first diameter when the jaws are in the closed position. The third length is greater than the fourth length.

An expansion tool includes a housing and an expansion head having a casing and jaws. The jaws are movable between a closed position and an expanded position relative to a longitudinal axis. Each jaw includes a first tapered portion defining a first length along the longitudinal axis, a first sizing portion extending parallel to the longitudinal axis from the first tapered portion and defining a second length along the longitudinal axis, a second tapered portion defining a third length along the longitudinal axis, and a second sizing portion extending parallel to the longitudinal axis from the second tapered portion and defining a fourth length along the longitudinal axis. The first sizing portions define a first diameter and the second sizing portions define a second diameter greater than the first diameter when the jaws are in the closed position. The third length is greater than the fourth length.