Patent ID: 6731385
Filing Date: 2004-05-04
Classification: G01N

Abstract:
A pressure resistant process window for visual or spectroscopic examination of pressurized products in a pipe or a reactor comprising:(A) at least one measurement-cell body that is connected to a pipe or a reactor, and a transparent window pane having (i) a central region, (ii) an outer region, and (iii) a wall thickness in the central region that is greater than a wall thickness in the outer region, wherein the window pane is sealed against the measurement-cell body with a screw barrel having an external thread that can be screwed into a hollow barrel that (a) has an internal thread that is connected to the measurement-cell body, and (b) is connected to the measurement-cell body in a pressure-resistant or in a pressure-resistant and detachable manner; and (B) a seal between the measurement-cell body and the window pane for sealing the reactor interior or pipe interior from surroundings of the reactor interior or pipe interior.