Patent ID: 6446716
Filing Date: 2002-09-10
Classification: B01L

Abstract:
A working enclosure comprising a working chamber whose walls delimit a confinement space for working in and an exterior branch loop for recycling the atmosphere of the confinement space, which branch loop opens at each end into the confinement space and includes means for circulating the atmosphere in the branch loop, wherein the working enclosure includes filter members at each end of said branch loop,wherein the working chamber includes a containment vessel and a door mobile relative to the containment vessel and shutting off an access to said confinement space and wherein each end of the branch loop opens through walls of the containment vessel, the containment vessel being at least partly surrounded by a thermostatically controlled jacket filled with a heat-conducting liquid and wherein said branch loop passes through said jacket and extends over the greater part of its length in a thermostatically controlled box-section adjacent said jacket, which box-section contains a gas.