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US 4,901,764 AGranted
Dynamic confinement and contactless docking
AssigneeSociete Generale pour les Techniques Nouvelles S.G.N.
InventorFrancois Meline
Life of this patent
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AssigneeSociete Generale pour les Techniques Nouvelles S.G.N.
InventorFrancois Meline
Estimating the term…
An apparatus for isolating an enclosure from external pollution includes a tube (2) with one end opening out into the enclosure and with its opposite end (5) being open. At least one slot (6) is provided in the inside wall of said tube in the vicinity of its opening (5), the slot being disposed in a plane perpendicular to the axis of said tube and sloping towards the opening. The slot is fed with gas so as to blow a continuous sheet of gas into the tube. At least one porous plate is disposed on the inside wall of said tube between the slot (6) and the opening (5), and the plate is fed with a gas which forms a small flow of gas suitable for overcoming the pressure reduction formed by the sheet of gas leaving from said slot (6). The enclosure is maintained at a pressure which is slightly higher than its surroundings so as to create a flow of gas running along said tube (2) and deflecting the sheet or sheets of gas leaving the slot (6) towards the opening (5).
An apparatus for isolating an enclosure from external pollution, said enclosure being associated with a tube having one end opening out into said enclosure and having its opposite end open, the apparatus comprising:
Dependencies are inferred from the claim text.