Patent ID: 7641240
Filing Date: 2010-01-05
Classification: F16L

Abstract:
1. A pressure joint assembly for sealing first and second pipes having mutually confronting first and second pipe end flanges respectively, the assembly configured to hold the pipe end flanges in non-abutting fixed relationship to each other, the assembly comprising: a generally cylindrical cover spanning the first and second pipe end flanges and releasably fixed to the first and second pipe end flanges; first and second seal elements radially disposed between the first and second pipe end flanges, respectively, and the cover; a device configured to apply an axial compressive force to the first and second seal elements; first and second cover flange elements disposed at a respective first and a second end of the cover and projecting radially inwardly from the cover; and first and second retaining elements that are axially fixed relative to the first and second pipe end flanges respectively, the first and second retaining elements being operative under the axial compressive force to axially trap the first and second seal elements between the first and second retaining elements and respective first and second cover flange elements, wherein at least one of the first and second cover flange elements projecting from the cover is radially inwardly demountable from the cover while the cover is located over the pipe end flanges.