摘要:
An arrangement for replacably mounting an operating member such as glove, bag or filter on the wall of a radiation shielding box includes a cylindrical fixed port fixedly provided on the wall, and a cylindrical replacement port having the operating member mounted thereon and screwed into the fixed port. The interface between the fixed port and the replacement port is sealed by a threaded, compressible elastic member such as rubber. The replacement port can be replaced with another new one when required.
摘要:
An improved structure of a section for mounting a replacement such as a filter, glove, bag or the like on a wall of a shielding box in which a material such as a radioactive or other hazardous material or the like, and/or an apparatus impossible of direct contact with a hand are disposed. The mounting section comprises a cylindrical fixed port secured to the wall, and a cylindrical replacement port having the replacement and adapted to be fitted into the fixed port. A plurality of rubber or the like elastic rings spaced from each other in an axial direction are sealingly disposed in a compressively deformed state between the two ports. Thus, renewal can be achieved by pushing out a spent replacement port with another, as needed.
摘要:
A plastic hose suitable for conveying refrigerant in a liquid or gas phase, liquefied gas such as LPG, volatile liquids, or gases such as CO.sub.2, O.sub.2 or N.sub.2 having an impermeable layer or a barrier. The amount of permeation of the gas in the hose to the outside and the amount of permeation of moisture into the hose are limited to extremely small values.