Patent ID: 6238627
Filing Date: 2001-05-29
Classification: B01J,B01L,C40B,G01N

Abstract:
A cover assembly configured to be disposed over a reaction block which during operation supports a plurality of reaction vials, the cover assembly comprising:a cover housing including:a gas inlet adapted to receive a cooling gas from an external source;the cover housing defining, in part, an internal cavity into which the reaction vials extend during operation;a plenum member defining, in part, a plenum chamber and having a gas port extending therethrough, the plenum member being positioned between the gas inlet and the internal cavity such that the cooling gas flows from the gas inlet and through the gas port to cool upper ends of the reaction vials;a movable vane disposed within the plenum chamber and configured to be positioned and secured over a portion of the gas port; andan outlet configured to allow the cooling gas to exit the internal cavity after cooling the upper ends of the reaction vials.