Abstract

A tubular structure is disclosed. The tubular structure has a first sheet metal having a machine direction. The first sheet metal is convolutely wound about a longitudinal axis and has a tail portion. The tail portion of the first sheet metal is disposed upon and bonded to an immediately subjacent convolution of the first sheet metal.

IPC Classes  ?

• F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement

Goods & Services

Carbon composite materials consisting of a fibrous reinforcing structure made of carbon fibers and densified by a carbon matrix, for use in manufacturing Non-metal rigid tubing

Goods & Services

Pipe tubes of metal; Pipes of metal; Aluminum composite tubing for use in the manufacture of bicycle frames; Copper pipes; Metal pipes; Metal tubing; Stainless steel pipes; Steel pipes

Abstract

A tubular structure is disclosed. The tubular structure has an elongate pre-fabricated tube having a longitudinal axis, a machine direction and a first width, and a first sheet metal having a leading edge, a machine direction and a second width. The leading edge of the first sheet metal is bonded to an outer surface of the elongate pre-fabricated tube and is continuously and convolutely wound about the longitudinal axis forming a plurality of at least three convolutions coaxially disposed about the outer surface of the pre-fabricated tube. The first sheet metal has a tail portion. The tail portion of the first sheet metal is disposed upon and bonded to an immediately subjacent convolution of the first sheet metal along the width.

IPC Classes  ?

• F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement

Abstract

A process for winding a convolutely wound tubular structure having a machine direction, a cross-machine direction coplanar thereto, and a Z-direction orthogonal to both the machine- and cross-machine directions is disclosed.

IPC Classes  ?

• B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes

Abstract

A tubular structure is disclosed. The tubular structure has a first sheet metal having a machine direction. The first sheet metal is convolutely wound about a longitudinal axis and has a tail portion. The tail portion of the first sheet metal is disposed upon and bonded to an immediately subjacent convolution of the first sheet metal.

IPC Classes  ?

• F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement
• F16L 9/17 - Rigid pipes obtained by bending a sheet longitudinally and connecting the edges
• B21B 17/00 - Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
• B21B 19/12 - Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially parallel to the axis of the work
• B21B 21/02 - Rollers therefor
• B21B 27/02 - Shape or construction of rolls

Abstract

An elongate tubular structure is disclosed. The elongate tubular structure has a first and second tubular structure wherein a first end of the first tubular structure is matingly and fasteningly engaged to a first end of the second tubular structure. The first and second tubular structures each have a first sheet metal having a machine direction being convolutely wound about a first longitudinal axis. The first sheet metal has a tail portion that is disposed upon and bonded to an immediately subjacent convolution of the first sheet metal to form the respective first and second tubular structures.

IPC Classes  ?

• B21C 37/15 - Making tubes of special shapeMaking the fittings
• B21C 1/22 - Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
• B21C 37/08 - Making tubes with welded or soldered seams
• B32B 1/08 - Tubular products
• F16L 9/04 - Reinforced pipes
• F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement

Abstract

A helically wound tubular structure is disclosed. The tubular structure has a first sheet metal helically wound about a longitudinal axis, a second sheet metal having voids disposed therein helically wound about the longitudinal axis and coaxially about the first sheet metal, and a third sheet metal helically wound about the longitudinal axis and coaxially about the first sheet metal and the second sheet metal.

IPC Classes  ?

• B31C 3/00 - Making tubes or pipes by feeding obliquely to the winding mandrel centre line
• B21C 37/12 - Making tubes or metal hoses with helically arranged seams
• B29C 53/64 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis and moving axially
• B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
• B32B 1/08 - Tubular products
• F16L 11/16 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands

Goods & Services

Engineering; Engineering design services; Consulting in the field of mechanical, electrical and product design engineering; Mechanical engineering; Product development and engineering services for others