Patent ID: 11946571
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 15:
16. A method of removing a temporary pipeline protection apparatus on a pipeline, which method comprises:
opening at least one latch on a cylindrical sleeve having a pair of halves, each of said pair of halves having a pair of opposed edges, said latch at a second edge of each of said pair of edges;
raising said pair of halves of said cylindrical sleeve so that said pair of halves rotate about at least one hinge assembly connecting a first edge of each of said pair of edges so that said second edges of said halves separate; and
continuing to raise said pair of halves of said cylindrical sleeve so that said halves are above and spaced from said pipeline;, wherein each said at least one hinge assembly includes:
a first hinge leaf and having at least one slot;
a second hinge leaf;
a hinge rotatably connecting said first and second leaves; and

a stop bar assembly connected to said second hinge leaf, said stop bar assembly receivable in said at least one slot.