| 摘要 |
A device for protecting the threads of a well casing pipe which comprises a body constructed from flexible material and having resilient characteristics, wherein the body has a central opening sized to fit about the threads, a passageway extending through the body concentric to the central opening, a locking section having a cavity connecting to the passageway, a strap constructed from a high tensile strength fiber web material and positioned in the passageway with its opposite ends extending into the cavity, and a locking means operatively attached to the opposite ends of the strap to tighten the strap about the body to the degree necessary for the body to contact the threads.
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