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

Claim 10:
11. A method of installing a temporary pipeline protection apparatus, which method comprises:
lowering a cylindrical sleeve having a pair of halves, each of said halves having a pair of opposed edges parallel to an axis of said cylindrical sleeve toward a pipeline, while in an installation and removal position;
engaging an inside surface of each of said pair of halves with said pipeline in order to cause said halves to rotate about at least one hinge assembly connecting a first edge of each of said pair of opposed edges to move said halves toward a closed operational position surrounding said pipeline;
continuing to lower said cylindrical sleeve until said pair of halves are in said closed operational position surrounding said pipeline; and
closing a latch at a second edge of each of said pair of edges configured to retain said cylindrical sleeve in said closed operational position;, wherein each said at least one hinge assembly includes:
a first hinge leaf attached to one of said halves and having at least one slot therein;
a second hinge leaf attached to another of said halves;
a hinge pin rotatably connecting said first hinge leaf and said second hinge leaf; and
a stop bar assembly connected to said second hinge leaf, said stop bar assembly receivable in said slot of said first hinge leaf.