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专利名称：Apparatus for the inspection and servicing of
pipes
发明人：STEIN, DIETRICH, PROF. DR.-ING.申请号：EP98250042.3申请日：19980203公开号：EP0872680A2公开日：19981021
专利附图：
摘要：A chamber (2) inside a pipe (4) is situated between at least two clampingelements (5) placed behind each other in the pipe's longitudinal direction. The chamberextends only over part of the pipe's cross-section. Sealing elements (13) tightly clamped
to the sides of the pipe-wall (1) are fixed to the clamping elements at least at the rearend of the chamber in the medium's flow direction. A sealing element (8) between theclamping elements seals off the chamber against the pipe interior. Inflatable closureelements (6) are between the sealing elements and the pipe wall. Two bulkhead walls(13) extend over part of the pipe's cross-section
申请人：PROF. DR.-ING. STEIN & PARTNER GMBH
地址：Universitätsstrasse 142 44799 Bochum DE
国籍：DE
代理机构：Pfenning, Meinig & Partner
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