| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for protecting a user in an enclosed environment. <P>SOLUTION: The method for protecting the user in the enclosed environment 65 includes: providing the enclosed environment 65 that holds cargo that has first odor; flowing a gas to the enclosed environment 65; and adding an odorant 25 having a second odor to the gas, the first odor being distinctive from the second odor such that a presence of the second odorant provides a warning that the gas is present. If a regulator/control valve 70 and diverter valve 75 fail, leak or operate properly, enough pressure may be exerted on an odorant module 20 to cause a disk seal 35 to burst and gas passing through a conduit 10 acts as a venturi to pull an odorant 110 into the conduit 10 and odorize inert gas. By using a particular odorant 110, one who enters the enclosed environment 65 senses the odorant and vents the enclosed environment 65, and shuts off a system 45 by closing a valve 95 before safely entering the enclosed environment 65. <P>COPYRIGHT: (C)2012,JPO&INPIT |
