Global Patent Index - EP 0698423 A1

EP 0698423 A1 19960228 - Tube cleaner for removing hard deposits

Title (en)

Tube cleaner for removing hard deposits

Title (de)

Reinigungsgerät zur Entfernung von harten Ablagerungen in Rohren

Title (fr)

Outil de nettoyage pour enlever des dépÔts durs dans les tuyaux

Publication

EP 0698423 A1 19960228 (EN)

Application

EP 95305517 A 19950808

Priority

US 28713594 A 19940808

Abstract (en)

A tube cleaner (1) for removing thin hard deposits form the inner surface of a tube (12) has a shaft (2) with a nose portion (3) and tail portion (4), and two or three scraper elements (6, 6', 6'') along the shaft (2). Each scraper element is a one piece element having a base portion (7) and a plurality of outwardly biased rearwardly extending fingers (8) terminating as blade portions (9). Adjacent fingers (8) are of different lengths and the blade portions (9) make substantially point-to-point contact with the tube inner wall surface (14) as the scraper element (6, 6', 6'') is forced through the tube (12). <MATH>

IPC 1-7

B08B 9/04

IPC 8 full level

B08B 9/04 (2006.01); B08B 9/043 (2006.01); F28G 1/12 (2006.01)

CPC (source: EP KR)

B08B 9/02 (2013.01 - KR); B08B 9/0557 (2013.01 - EP); F28G 1/12 (2013.01 - EP)

Citation (applicant)

Citation (search report)

  • [Y] US 5305488 A 19940426 - LYLE DANIEL C [US]
  • [A] US 1835238 A 19311208 - OBERHUBER WILLIAM F
  • [Y] SOVIET PATENTS ABSTRACTS Section PQ Week 9222, 22 July 1992 Derwent World Patents Index; Class P, Page 43, AN 92-182236
  • [A] SOVIET PATENTS ABSTRACTS Section PQ Week 8920, 28 June 1989 Derwent World Patents Index; Class Q, Page 67, AN 86-119098

Designated contracting state (EPC)

CH DE ES FR GB IT LI PT

DOCDB simple family (publication)

EP 0698423 A1 19960228; EP 0698423 B1 19990113; CA 2155622 A1 19960209; CA 2155622 C 20010130; DE 69507221 D1 19990225; DE 69507221 T2 19990527; ES 2128667 T3 19990516; KR 100228757 B1 19991101; KR 960007024 A 19960322

DOCDB simple family (application)

EP 95305517 A 19950808; CA 2155622 A 19950808; DE 69507221 T 19950808; ES 95305517 T 19950808; KR 19950024364 A 19950808