F - Mech Eng,Light,Heat,Weapons – 28 – G
Patent
F - Mech Eng,Light,Heat,Weapons
28
G
257/1, 15/12.5
F28G 1/08 (2006.01) B01J 19/00 (2006.01) B08B 9/02 (2006.01) F28F 19/00 (2006.01) F28G 3/08 (2006.01)
Patent
CA 1132132
SPECIFICATION Title of the Invention: Device for Scraping off Deposits from Internal Surfaces of Elonga- ted Tubes Abstract of the Disclosure: Device for scraping off deposit from the internal wall sur- face of an elongated tube of relatively small diameter, comprising a helical coil spring which is installed inside the tube and adapted to be reciprocally movable and/or rotatable, said spring scraping off the deposit from the internal wall surface of the tube. - 1 -
334987
Murata Sadao
Numata Takanobu
Mitsui Toatsu Chemicals Inc.
Sim & Mcburney
Toyo Engineering Corporation
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