Patent ID: 8122778
Filing Date: 2012-02-28
Classification: G01N

Abstract:
1. A probe assembly comprising a flange assembly, a probe platform, a platform extension, an extension enclosure, and a fluid coupling assembly, wherein: the flange assembly is configured to mount the probe assembly to a stack fixture assembly of an exhaust stack; the extension enclosure is configured to extend into a flow of particulate-containing gas passing through the exhaust stack when the probe assembly is mounted to the exhaust stack; the probe platform is configured to support an analytical probe; the platform extension at least partially supports the probe platform in the vicinity of a distal end of the extension enclosure; the fluid coupling assembly comprises a removable portion and a retained portion; the removable portion of the fluid coupling assembly comprises one or more disengageable fluid passages extending from an engaging interface of the removable portion to an input/output interface of the removable portion; the removable portion of the fluid coupling assembly is configured such that the engaging interface of the removable portion and the input/output interface of the removable portion are oriented in non-parallel or substantially orthogonal planes; the retained portion of the fluid coupling assembly comprises one or more retained fluid passages extending from an input/output interface of the retained portion to an engaging interface of the retained portion; the engaging interface of the retained portion of the fluid coupling assembly cooperates with the engaging interface of the removable portion of the fluid coupling assembly such that, with engagement of the removable and retained portions, the respective fluid passages of the removable and retained portions form one or more integrated fluid channels configured to permit passage of fluid through the fluid coupling assembly; and the probe platform, the platform extension, and the removable portion of the fluid coupling assembly are interconnected and are configured to be withdrawn simultaneously from the probe assembly independent of the retained portion of the fluid coupling assembly.