Water aeration apparatus

16 Pages·2013·0.94 MB·English

United States Patent [191 [11] Patent Number: 4,702,830
Makino et al. [45] Date of Patent: Oct. 27, 1987
[54] WATER AERATION APPARATUS 4,327,042 4/1982 Hagino et al. 261/77
4,436,675 3/1984 Hisao et al. ......................... .. 261/77
[75] Inventors: Hisao Makino; Masahiko Makino,
both of Ichikawa, Japan FOREIGN PATENT DOCUMENTS
[73] Assignee: Kaiyo Kogyo Kabushiki Kaisha, 2557559 7/1985 France .
Tokyo, Japan Primary Examiner—Tom Wyse
Attorney, Agent, or Firm-Wenderoth, Lind & Ponack
[21] Appl. No.: 717,292
[57] ABSTRACI‘
[22] Filed: Mar. 28, 1985
A water aeration apparatus is used for aeration purposes
[30] Foreign Application Priority Data
in the water-?lled areas such as dams, impounded water
Apr. 23, 1984 [JP] Japan ........................... .. 59-59614[U] or reservoirs, and lakes and marshes, and includes a
tubular casing and supply chamber that causes large
[51] Int. Cl.4 .............................................. .. C02F 7/00
quantities of water to be exposed to the ?otation action
[52] US. Cl. . . . . . . . . . . . . . . . . . . . . . . . .. 210/220; 261/77; of air supplied under pressure, thus raising the water up
261/124; 210/170
to the surface. The apparatus may be used for water
[58] Field of Search ................... .. 261/77, 121 R, 124;
puri?cation, or for anti-freezing purposes particularly in
210/199, 220, 170
cold climate regions. The apparatus includes a collec
[56] References Cited tive tubular casing and a multiple-partitioned or com
mon air supply chamber below the casing, the tubular
U.S. PATENT DOCUMENTS
casing including a plurality of tubular air and water
passages formed by dividing the interior of the easing
3,148,509 9/1964 Laurie . . . . . . . . . . . . . . . . .. 61/6
3,452,966 7/1969 Smolski .... .. 261/77 into several longitudinal passages or by combining indi
3,852,384 12/1974 Beardon 261/124 X
vidual tubes together.
3,931,370 l/l976 Murphy 26l/124X
4,231,863 11/1980 Sutphin ...... .. 210/615
9 Claims, 21 Drawing Figures
4,293,506 10/1981 Lipert .................................. .. 261/77
/
U. S. Patent Oct. 27, 1987 Sheetl oflO 4,702,830 7
FIGJ
U. S. Patent Oct. 27,1987 Sheet 2 of 10 4,702,830
FIG.3 FIG.4
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U. S. Patent 0m. 27, 1987 Shéet3 oflO 4,702,830
FIG.7 FIG-8
FIG.9 FIGJO
U. S. Patent Oct. 27,1987 Sheet4 of“) 4,702,830
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U. S. Patent Oct. 27,1987 SheetS oflO 4,702,830
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U. S. Patent Oct. 27, 1987 Sheet6 OflO 4,702,830
FIG.I4
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48
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49
U. S. Patent Oct. 27, 1987 Sheet7 oflO 4,702,830
FIG.|6
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U. S. Patent Oct. 27, 1987 Sheet8 oflO 4,702,830
U. S. Patent Oct. 27, 1987 Sheet9 oflO 4,702,830
FIG.|9
FIG.20
54c 54b
53
54 54a