Mitsubishi Jukogyo Kabushiki Kaisha

Marine Techno Research, Inc.

Marine Giken Co., Ltd.

Marine Gikens Co., Ltd.

Hironao Kasai

Katutoshi Yoshinaga

Yajuro Seike

Shozo Fukuda

Naoji Toki

Hitoshi Fujii

Katsutoshi Yoshinaga

Mamoru Enami

Masafumi Iizuka

A regional water purifier collects blue green algae continuously by using a water flow produced by the operation of a water flow generator, and continuously and efficiently processes the algae to make it inactive by irradiating ultrasonic waves thereon. Thus, regional water purification is performed efficiently at a far lower cost than the conventional method through the blue green algae processing. The purifier includes a blue green algae processing duct , which is disposed under water where blue green algae breed in large quantities, and has an ultrasonic wave transmitter therein for transmitting ultrasonic waves to process the blue green algae with the ultrasonic waves. Both ends of the duct are open, and a water flow generator produces a suction flow for sucking water containing blue green algae into the blue green algae. processing duct from a first end and a discharge flow for discharging the water from the second end

Apparatus for purification of water area

An apparatus for generating a stream in a body of water has at least one cylinder installed under water, and a water-jet pump housed in the cylinder. The pump draws water in through one end of the cylinder and produces a stream of water accelerated by a driving fluid supplied from an external source. The stream is discharged through another end of the cylinder to promote a flow in the body of water.

Submersed jet pump method for generating a stream of water

Submersed jet pump for generating a stream of water

A floating type anti-oil anti-impact anti-wave barrier includes structure for intercepting oil floating on the water, for mitigating an impact force exerted by a ship or the like, and for intercepting waves. The barrier can collect oil which has flowed out onto the sea to prevent the oil from dispersing, and the barrier can be protected from damage caused by a ship, by drift, by waves, etc.

Floating-type anti-oil anti-impact anti-wave barrier

Improved apparatus for collecting effluent oil floating on a water surface. The improvements exist in that the apparatus utilizes a pair of side plates disposed in a forwardly opened arrangement, a weir which is inclined in a rear-downward direction with its opposite side edges contacted to the inner wall surfaces of the side plates under the water surface, and a slant plate which has its rear end positioned above the rear end of the weir in the rear of said side plates and has its opposite side edges fixedly secured to the inner wall surfaces of the side plates. Also, an oil leakage preventing plate is positioned midway between the rear end of the weir and the rear end of the slant plate and has its opposite side edges fixedly secured to the inner wall surfaces of the side plates to form a water discharge port between the oil leakage preventing plate and the rear end of the weir and to form an oily water intake port between the oil leakage preventing plate and the rear end of the slant plate. An oily water intake pipe communicates with the oily water intake port, and a float is mounted directly or indirectly to said side plates. In addition, wave buffering chambers are positioned above the slant plate and the intake port to help absorb the kinetic energy of wave action forced against the intake port.

Apparatus for collecting effluent oil

Growing community of inventors

Nagasaki, Japan

Hironao Kasai