Title:
UNDERGROUND WATER PUMPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2002/012637
Kind Code:
A1
Abstract:
An underground water pumping device capable of effectively performing a water collecting/water pumping operations with a relatively simple structure and effectively utilizing an existing deep well device, comprising an outer tube buried in the ground and an inner tube having a length generally equal to that of the outer tube and disposed in the outer tube through a clearance provided therebetween, a shielding member for shielding the upper end part of the outer tube from the upper end part of the inner tube, a decompressing means for reducing a pressure in the inner tube, and a pumping means for pumping up the underground water came from the underground water inlet into the inner tube, the outer tube further comprises a water passing part at the lower part thereof and the inner tube further comprises an underground water inlet at the lower end part thereof, wherein the underwater inlet is positioned under the upper end part of the water passing part.
Inventors:
Yamaguchi, Toru (5-5-24, Kamo, Izumi-ku Sendai-shi Miyagi, 981-3122, JP)
Matsumura, Shuichi (6-2 Kanaoka 3-chome Higashiosaka-shi Osaka, 577-0823, JP)
Minamijima, Yoshiyuki (3-3-14, Miyake Saeki-ku Hiroshima-shi, Hiroshima, 731-5143, JP)
Takahashi, Shigeyoshi (16-107, Iwasakishinden 5chiwari Waga-cho, Kitakami-shi Iwate, 024-0322, JP)
Matsumura, Shuichi (6-2 Kanaoka 3-chome Higashiosaka-shi Osaka, 577-0823, JP)
Minamijima, Yoshiyuki (3-3-14, Miyake Saeki-ku Hiroshima-shi, Hiroshima, 731-5143, JP)
Takahashi, Shigeyoshi (16-107, Iwasakishinden 5chiwari Waga-cho, Kitakami-shi Iwate, 024-0322, JP)
Application Number:
PCT/JP2001/006608
Publication Date:
February 14, 2002
Filing Date:
July 31, 2001
Export Citation:
Assignee:
NISHIMATSU CONSTRUCTION CO., LTD. (20-10, Toranomon 1-chome Minato-ku Tokyo, 105-8401, JP)
SEIKO KOGYO CO., LTD. (7-24, Otemae 1-chome Chuo-ku, Osaka-shi Osaka, 540-0008, JP)
Nippon Kensetsu, Kikai Shoji Ltd CO. (2-5 Tsukudohachiman-cho Shinjuku-ku, Tokyo, Tokyo, 162-0815, JP)
ASAHI TECHNO CORP. (16-81, Iwasakishinden 5chiwari Waga-cho Kitakami-shi Iwate, 024-0322, JP)
Yamaguchi, Toru (5-5-24, Kamo, Izumi-ku Sendai-shi Miyagi, 981-3122, JP)
Matsumura, Shuichi (6-2 Kanaoka 3-chome Higashiosaka-shi Osaka, 577-0823, JP)
Minamijima, Yoshiyuki (3-3-14, Miyake Saeki-ku Hiroshima-shi, Hiroshima, 731-5143, JP)
Takahashi, Shigeyoshi (16-107, Iwasakishinden 5chiwari Waga-cho, Kitakami-shi Iwate, 024-0322, JP)
SEIKO KOGYO CO., LTD. (7-24, Otemae 1-chome Chuo-ku, Osaka-shi Osaka, 540-0008, JP)
Nippon Kensetsu, Kikai Shoji Ltd CO. (2-5 Tsukudohachiman-cho Shinjuku-ku, Tokyo, Tokyo, 162-0815, JP)
ASAHI TECHNO CORP. (16-81, Iwasakishinden 5chiwari Waga-cho Kitakami-shi Iwate, 024-0322, JP)
Yamaguchi, Toru (5-5-24, Kamo, Izumi-ku Sendai-shi Miyagi, 981-3122, JP)
Matsumura, Shuichi (6-2 Kanaoka 3-chome Higashiosaka-shi Osaka, 577-0823, JP)
Minamijima, Yoshiyuki (3-3-14, Miyake Saeki-ku Hiroshima-shi, Hiroshima, 731-5143, JP)
Takahashi, Shigeyoshi (16-107, Iwasakishinden 5chiwari Waga-cho, Kitakami-shi Iwate, 024-0322, JP)
International Classes:
E02D3/10; E02D19/10; E21B43/12; (IPC1-7): E02D3/10; E02D19/10; E21B43/00
Attorney, Agent or Firm:
Nishikawa, Yoshikiyo (Hokuto Patent Attorneys Office Umeda-Daiichiseimei Bldg, 5F 1-12-17 Umed, Kita-ku Osaka-shi Osaka, 530-0001, JP)
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