US 12,214,559 B2
Pipe forming apparatus
Wayne Barrett, Surfers Paradise (AU)
Assigned to NEXGEN PIPES PTE. LTD., Forum (SG)
Appl. No. 17/776,992
Filed by NEXGEN PIPES PTE. LTD., Singapore (SG)
PCT Filed Jul. 31, 2020, PCT No. PCT/IB2020/057241
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/094840, PCT Pub. Date May 20, 2021.
Claims priority of application No. 2019904309 (AU), filed on Nov. 15, 2019.
Prior Publication US 2023/0085379 A1, Mar. 16, 2023
Int. Cl. B28B 1/24 (2006.01); B28B 7/00 (2006.01); B28B 7/28 (2006.01); B28B 7/36 (2006.01); B28B 21/38 (2006.01); B28B 21/42 (2006.01); B29C 33/04 (2006.01); B29C 33/46 (2006.01); B29C 45/00 (2006.01); B29C 45/14 (2006.01); B29C 53/70 (2006.01); B29C 65/52 (2006.01); B29C 70/18 (2006.01); B29C 70/32 (2006.01); B29C 70/46 (2006.01); B29C 70/48 (2006.01); B29D 23/00 (2006.01); F16L 1/038 (2006.01); F16L 9/12 (2006.01); F16L 9/16 (2006.01); B29L 23/00 (2006.01)
CPC B29C 70/32 (2013.01) [B28B 1/24 (2013.01); B28B 7/0002 (2013.01); B28B 7/28 (2013.01); B28B 7/36 (2013.01); B28B 21/38 (2013.01); B28B 21/42 (2013.01); B29C 33/04 (2013.01); B29C 33/46 (2013.01); B29C 45/0003 (2013.01); B29C 45/14598 (2013.01); B29C 45/14631 (2013.01); B29C 53/70 (2013.01); B29C 65/52 (2013.01); B29C 70/18 (2013.01); B29C 70/462 (2013.01); B29C 70/48 (2013.01); B29D 23/001 (2013.01); F16L 1/038 (2013.01); F16L 9/12 (2013.01); F16L 9/16 (2013.01); B29L 2023/22 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A pipe forming apparatus for forming a pipe at an installation site, said apparatus comprising:
a holder that holds sheet material;
a former;
a racking system for axially advancing the holder relative to the former so that the sheet material is wound around the former to form the pipe with one or more steps at each end of the pipe so that the pipe has two stepped ends, wherein wound material at one end of the pipe forms a complementary fit with the other end;
a mold for receiving the former bearing the wound sheet material;
a lock for locking the former to a completed pipe, whilst enabling the former to rotate when winding material for another pipe; and
an applicator for applying curable liquid within the mold.