Metallic protector for threaded drill pipe ends

Details Metallic protector for threaded drill pipe ends Metallic protector for threaded drill pipe ends

F - Mech Eng,Light,Heat,Weapons

16

L

189/4

F16L 57/00 (2006.01)

Patent

CA 1180668

METALLIC PROTECTOR FOR THREADED DRILL PIPE ENDS A thread protector and a method for its production is provided. The protector for threaded pipe ends comprises a metallic member having an undersized thread versus the thread of the pipe to be protected and a shock absorbing covering of plastic material on the metallic member threads. The covering shows a substantially uniform thickness over the region of the thread. If the pipe end comprises a sealing surface, then a corresponding undersized counter surface can be provided on the metallic member and can be equally provided with a uniform covering. Advantageously, the threads of the metallic member do have to meet only coarse tolerances. The covering can be applied to the metallic member by electrostatic spraying followed by a fusing step.

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