Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1984-05-14
1986-04-01
Caroff, Marc L.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 2218, 134 24, 134 34, 422 33, B08B 304, B08B 900
Patent
active
045795983
ABSTRACT:
In a method of cleaning an endoscope, the open ends of an air/liquid supply valve cylinder and a suction valve cylinder, both provided within a control section of the endoscope, are closed by stops. The ends of an air supply channel, a liquid supply channel and a suction channel, which open to a connector mounted on the distal end of a light guide cable, are connected to a connecting tube so that liquid may flow between these ends. The other end of the suction channel opening to the distal end of an insertion section is connected to a liquid tank filled with liquid through a liquid supply tube. The tank is connected to an air pump through an air supply tube. When the pump is operated, the liquid is supplied from the other end of the suction channel and discharged from a nozzle through the three channels, valve cylinders and the connecting tube, thereby cleaning the interiors of these channels and valve cylinders with the liquid.
REFERENCES:
patent: 3963438 (1976-06-01), Banez
patent: 4064886 (1977-12-01), Heckele
patent: 4216767 (1980-08-01), Aoshiro
patent: 4218674 (1981-08-01), Tanaka et al.
patent: 4278101 (1981-07-01), Tanaka et al.
patent: 4281646 (1981-08-01), Kinoshita
patent: 4288882 (1981-09-01), Takeuchi
patent: 4299244 (1981-11-01), Hirai
Ishii Fumiaki
Nakajima Yukio
Nakamura Takeaki
Sasa Hiroyuki
Takamura Koji
Caroff Marc L.
Olympus Optical Co,. Ltd.
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