EP 0041698 A3 19820519 - CLEANING BODIES FOR THE INTERNAL CLEANING OF TUBE HEAT EXCHANGERS
Title (en)
CLEANING BODIES FOR THE INTERNAL CLEANING OF TUBE HEAT EXCHANGERS
Publication
Application
Priority
DE 3021698 A 19800610
Abstract (en)
[origin: US4406031A] Cleaning member for cleaning the interior of heat exchanger tubes by rotating, including a sponge rubber element being adapted to suit the diameter of the heat exchanger tube, and abrasive elements connected to the sponge rubber body, the abrasive elements being in the form of bristles each having a bristle shaft, and a bristle base molded into the sponge rubber ball anchoring the bristles.
IPC 1-7
IPC 8 full level
B08B 9/04 (2006.01); B08B 9/053 (2006.01); B08B 9/055 (2006.01); F28G 1/12 (2006.01)
CPC (source: EP US)
B08B 9/0552 (2013.01 - EP US); B08B 9/0553 (2013.01 - EP US); F28G 1/12 (2013.01 - EP US)
Citation (search report)
- CH 451033 A 19680515 - KNAPP MARY MCBEATH [US]
- US 4016620 A 19770412 - POWERS MARVIN D
- DE 2026502 A1 19701210
- US 4077079 A 19780307 - KNAPP MARY M
- US 4242771 A 19810106 - KNAPP KENNETH M
- DE 2914291 A1 19801016 - SAGAWA SIZUO
Designated contracting state (EPC)
FR GB IT
DOCDB simple family (publication)
EP 0041698 A2 19811216; EP 0041698 A3 19820519; EP 0041698 B1 19830511; DE 3021698 A1 19820128; DE 3021698 C2 19820609; JP S5726397 A 19820212; US 4406031 A 19830927
DOCDB simple family (application)
EP 81104312 A 19810604; DE 3021698 A 19800610; JP 8796881 A 19810608; US 27182481 A 19810609