公开(公告)号：US6432213B2

公开(公告)日：2002-08-13

申请号：US79465401

申请日：2001-02-27

Applicant: PHOTOSCIENCE JAPAN CORP

Inventor： WANG DEMAO ,  SOTIRAKOS BILL

IPC: B08B1/00 ,  B08B9/02 ,  B08B9/023 ,  B21C43/00 ,  C02F1/32

CPC classification number: B08B9/023 ,  B08B1/008 ,  B21C43/00 ,  C02F1/325 ,  C02F2201/324

Abstract: A scraper for removing deposits from the exterior of a tubular member includes elements defining an outer jacket which has an inwardly open circumferential recess and two aligned axial openings, and a scraper element in the form of an elongate resilient wire bent to define a series of integral, concatenated, resilient segments, each pair of adjacent segments being connected through a bend or geniculation. All geniculations are received within the recess, and each segment of wire extends generally along a chord of the aligned axial openings. The positions of the chords are distributed around the circumference of the axial openings such that, in order for the tubular member to be accommodated through the aligned openings, the various segments must be deformed outwardly, whereby the resilience of the thus deformed segment urges it inwardly against the tubular member, and causes it to clean the tubular member as the scraper moves axially.

Abstract translation: 用于从管状构件的外部去除沉积物的刮刀包括限定外护套的元件，外护套具有向内开口的周向凹部和两个对准的轴向开口，以及细长弹性线形式的刮板元件，其被弯曲以限定一系列积分 连接的弹性片段，每对相邻的片段通过弯曲或铰链连接。 所有的接合处都被容纳在凹槽内，并且每个丝线段大致沿对齐的轴向开口的弦线延伸。 弦杆的位置围绕轴向开口的圆周分布，使得为了使管状构件通过对准的开口容纳，各个片段必须向外变形，由此变形的片段的弹性将其向内推动 抵靠管状构件，并且当刮刀沿轴向移动时使其清洁管状构件。