Inventors:
Warren P. Dickinson - Lansing IL
Franklin S. Lange - Buffalo Grove IL
James S. Legg - Palos Heights IL
Assignee:
Griffith Micro Science, Inc. - Oak Brook IL
International Classification:
A61L 200
US Classification:
422117, 422 2, 422 26, 422105, 422292, 324314, 324316, 324600, 49 29
Abstract:
A safety system for a gas process or facility for measuring the concentration of a specified gas in an area or chamber and determining whether it is safe to allow access to such area or chamber. In particular, the safety system is adapted for use in a gas sterilization facility having one or more sterilization chambers, wherein the safety system measures the concentration of the sterilizing gas and unlocks the door of the sterilization chamber if the level of the sterilizing gas in the sterilization chamber is below a predetermined limit. The safety system further limits access to the sterilization chamber after a predetermined period of time if the door of the sterilization chamber is not opened due to the possible continued desorption of the sterilizing gas from the articles into the sterilization chamber.