Noritsu Koki Co., Ltd.

Konica Corporation

Konishiroku Photo Industry Co., Ltd.

Kunio Kanai

Masayuki Kurematsu

Hidetoshi Nishikawa

Keigo Arimoto

Yoshifumi Tsubaki

Hiromi Yanatori

Toshiyuki Yamamoto

An apparatus for vacuum absorption is provided which is quiet and simplified with maintaining an absorption power. The apparatus comprises: a tank for accumulating circulating water; a waterway for circulating the circulating water by a pump disposed at an absorption inlet side of the waterway and having an outlet disposed over the water surface of the circulating water in the tank; an aspirator disposed on the waterway; and a reverseflow prevention mechanism surrounding the outlet, having a small hole of the size to drain less volume of water than the volume flowing out of the outlet at the position sunk under the water, and comprising a buffer (hollow body) with drain windows at the position over the water surface. The apparatus serves to drain the circulating water into the water during the operation of the pump and to absorb air from the outlet into the vacuum vessel during the stoppage of the pump.

Apparatus for vacuum absorption with retracting reverse flow protection

An apparatus for vacuum absorption is provided which is quiet and simplified with maintaining an absorption power. The apparatus comprises: a tank for accumulating circulating water; a waterway for circulating the circulating water by a pump disposed at an absorption inlet side of the waterway and having an outlet disposed over the water surface of the circulating water in the tank; an aspirator disposed on the waterway; and a reverse flow prevention mechanism surrounding the outlet, having a small hole of the size to drain less volume of water than the volume flowing out of the outlet at the position sunk under the water, and comprising a buffer (hollow body) with drain windows at the position over the water surface. The apparatus serves to drain the circulating water into the water during the operation of the pump and to absorb air from the outlet into the vacuum vessel during the stoppage of the pump.

Apparatus for vacuum absorption having reverse flow protection mechanism

In a method of processing a photosensitive material in a processing solution, a solid component and water are fed separately. A working solution is prepared by dissolving the solid component in the water. Thereafter; the photosensitive material is processed by being brought in contact with the working solution.

Photosensitive material processing method and apparatus thereof

The object of the present invention is to provide a small-sized photographic material processing unit of a simple structure capable of developing both disk film and roll film simultaneously or selectively. In order to attain this object, the present invention is characterized in that in the photographic material processing unit adopted to process the photographic material by allowing it pass through a processing tank containing a processing solution, the disk film and/or foll film are passed through the same processing tank while they are held by a carrier.

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Hino, Japan

Kunio Kanai