Takenaka Komuten Co., Ltd.

Takenaka Corporation

Mitsubishi Materials Corporation

Kyokuto Kaihatsu Kogyo, Co., Ltd.

Sanwa Kizai Co., Ltd.

Keihin Ryoko Concrete Ind. Corp.

Hayao Aoyagi

Mitsuo Miura

Yoshinori Kukino

Tateo Kawamura

Jiro Ishii

Mitsuo Sato

Toshio Yonezawa

Minoru Ochiai

Kenji Okuda

Katsushi Tanaka

Yoshihiro Ishikawa

Masaaki Endo

Kimio Kikuchi

Fumio Fujii

Yoshimasa Sasaki

Tadashi Itakura

Toru Okuno

Yasuo Sugibayashi

Fuminobu Tanifuji

Kenzo Kitazawa

Hiromichi Yamada

Masahiko Furukawa

Ken-ichi Mase

Toshio Murai

Yasuyuki Saito

Akio Sakamoto

Toshiaki Tsuchiya

Tetsuo Oura

Takashi Shiozaki

Masamitsu Kikuchi

Morio Ishii

Toru Shimano

Akio Suzuki

Hirokuni Kubota

Kenro Mitsui

Isoji Okada

Kazuo Yamazaki

Masakazu Nagao

Apparatus for feeding ultrafine powder in quantitative batch operation

Concrete leveling apparatus

An apparatus for horizontally casting concrete comprises a horizontally foldable multilink support arm composed of an attachment frame, a proximal boom, intermediate booms, and a distal boom which are pivotally coupled by joint tubes, a drive mechanism composed of worm wheels mounted on the joint tubes and worm gears mounted on the booms and held in mesh with the worm wheels for enabling the support arm to move in articulatory motion, a concrete pressure-feed pipe extending from a pump along the booms and through the joint tubes with swivel joints, and an attachment jig mounted on the attachment frame for being mounted on a column.

Apparatus for horizontally casting concrete

A plurality of agitation spindles are disposed, and an agitation vane is attached to the lower portion of each agitation spindle. A mixing and kneading zone for mixing and kneading soft soil with a hardener is formed so that the hardener is supplied near these agitation vanes. The agitation spindles are supported by reinforcing members and connecting members to construct a multiple spindle kneading apparatus for improving ground. In one embodiment, blade-like excavating cutters are mounted on the agitation spindles. In another embodiment, hollow agitation spindles are used and the hollow portions are used as hardener passages. In still another embodiment, a tube for injecting the hardener into the mixing and kneading zone is disposed so that it can be moved up and down. A method for hardening soft ground by using this multiple spindle kneading apparatus in which the hardener feed position can be changed is provided.

Apparatus and method for multiple spindle kneading for improving ground

This invention relates to a device for solidifying sludgy material depositing on the earth surface, the device comprising an agitator having intergrated agitating shafts, each of which is provided with agitating blades. The agitator is attached to a stern of a working barge with a certain angle of inclination and also provided with nozzles for injecting chemical hardener. The device is capable of effectively solidifying the surface sludge over a wide area.

Device for solidifying sludgy material in a surface layer

An apparatus for the solidification of sludges comprising an apparatus proper which can be moved in the vertical direction by lifting means and a casing surrounding the kneading zone of said apparatus proper and being capable of shifting in the vertical direction with respect to said apparatus proper. The apparatus proper includes agitating shafts driven and rotated by driving means and agitating blades attached to each agitating shaft to form the kneading zone. A hardener supply device is disposed in the kneading zone to feed a hardener to the kneading zone. The casing is arranged so that the sludge being treated is separated and partitioned from other sludge, and the vertical position of the casing can be changed so that a desirable treating condition is maintained in the sludge being treated.

Apparatus and method for solidification of sludges

Growing community of inventors

Tokyo, Japan

Hayao Aoyagi