Title:
PLASTIC CONTACT MATERIAL FOR PURIFYING RIVER WATER
Document Type and Number:
Japanese Patent JP2510124
Kind Code:
B2
Abstract:
PURPOSE: To provide a lightweight plastic contact material capable of effectively purifying river water, which is hardly clogged, easy to handle and capable of being easily maintained.
CONSTITUTION: A projecting part 1a and a recessed part 1b are alternately formed on the outer surface of the contact material on its circumferential direction, is formed in the plastic annular pieces 1 with plural groove shaped cross section arranged at regular intervals in the axial direction, and in the middle of the pieces 1 an annular recessed groove is continuously inserted.
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Inventors:
Yujimoto Shoji
Application Number:
JP22246093A
Publication Date:
June 26, 1996
Filing Date:
September 07, 1993
Export Citation:
Assignee:
Yujimoto Shoji
International Classes:
C02F3/10; B01J19/30; E02B5/00; E02B5/02; (IPC1-7): C02F3/10
Domestic Patent References:
| JP6358698U |
Attorney, Agent or Firm:
Shigefumi Okamoto (1 person outside)