Back to results
US 2003/0201060 A1Published application
Reinforced thermoplastic pipe manufacture
OwnerDavid Edgar Hauberinventor
Life of this patent
Estimating the term…
Abstract
A fiber reinforced thermoplastic pipe member is obtained by a novel continuous process in which the reinforcement fibers are wrapped about the outer pipe surface in an unbonded condition while the pipe member continuously moves in a linear direction and which is followed by sufficient heating of the moving fiber wrapped pipe member to cause thermal bonding between the applied fibers and the pipe member. Automated apparatus for carrying out the continuous process is also disclosed.
Claims10
An apparatus for reinforcement of a pipe length with inner and outer surfaces and formed with a solid thermoplastic organic polymer which includes:
- (a) pipe feeding means which continuously transports the pipe length in a linear travel direction for operative association with rotating fiber supply means, (b) fiber supply means which rotate about the circumference of said moving pipe length to continuously apply a plurality of juxtapositioned reinforcement fiber wraps in a predetermined spatial direction on the outer surface of said moving pipe length, and (c) heating means which causes thermal bonding to be continuously formed between the applied reinforcement fiber wraps and the outer surface of the moving pipe length.
Dependencies are inferred from the claim text.