| 摘要 |
A resilient scraper cup made from elastic material and intended for use in propelling a pipeline pig and/or scraping the interior of a pipeline having a predetermined inside diameter. Rather than the usual integrally formed cup used in pipeline servicing vessels, the invention proposes two segments, an inner and an outer segment. The two segments overlap each other but are freely separable from each other. Accordingly, when the outermost friction surface of the cup is worn out, the only part that requires replacement is the outer segment. Since the outer segment has thickness of only about 50% of than the inner segment, or carrier, the cost of such replacement is substantially smaller than replacement or refurbishing of the existing integrally formed cup.
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