US 12,203,583 B2
System for protecting coated pipes for on-land and subsea pipelines and the method for protecting pipes
Murilo Costa Monteiro, Rio de Janeiro (BR); Bertrando Ribeiro Rabelo, Rio de Janeiro (BR); Daniel De Almeida Pereira, Sao Paulo (BR); Mario Henrique Fernandes Batalha, Sao Paulo (BR); Leandro Aparecido Da Silva Albino, Sao Paulo (BR); and Alessandro Guimaraes, Sao Paulo (BR)
Assigned to PETROLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR); and IPT—Instituto de Pesquisas Tecnologicas do Estado de Sao Paulo S/A, Sao Paulo (BR)
Filed by PETROLEO BRASILEIRO S.A.-PETROBRAS, Rio de Janeiro (BR); and IPT-Instituto de Pesquisas Tecnologicas do Estado de Sao Paulo S/A, Sao Paulo (BR)
Filed on Feb. 2, 2024, as Appl. No. 18/431,123.
Application 18/431,123 is a division of application No. 17/628,592, granted, now 12,055,262, previously published as PCT/BR2020/050283, filed on Jul. 23, 2020.
Claims priority of application No. 102019015918-9 (BR), filed on Jul. 31, 2019.
Prior Publication US 2024/0175536 A1, May 30, 2024
Int. Cl. F16L 57/06 (2006.01); F16L 57/00 (2006.01)
CPC F16L 57/06 (2013.01) [F16L 57/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of pipe protection for on-land and subsea pipelines, the pipe comprising an internal portion and an external portion, wherein the method comprises the steps of:
a) attaching a protective cup to an end of the pipe;
b) applying a coating to the pipe;
c) cutting the coating;
d) folding part of the coating over the cup to form a coating envelope;
e) attaching an external ring to the cup and to the folded part of the coating over the cup; and
f) attaching a cap to the external ring.