Wall feedthrough fitting

E - Fixed Constructions – 04 – B

Patent

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248/17

E04B 2/00 (2006.01) E04C 2/52 (2006.01) F16L 5/02 (2006.01) H02G 3/22 (2006.01)

Patent

CA 1095007

ABSTRACT OF THE DISCLOSURE A wall feedthrough fitting comprises a feedthrough tube that is embedded in a wall and has a pair of opposite ends each exposed to the respective face of the wall. An annular seal surrounds this tube adjacent one of the ends and radially inwardly bears on the tube and radially outwardly bears on a holding ring embedded in the wall and spacedly surrounding the tube. This holding ring extends axially toward one end of the tube beyond the seal and has between the seal and this one end an internal screwthread. A pressure ring is threaded into this holding ring and may bear directly via an axial face or indirect- ly via an intermediate ring on the seal. The tube may be pro- vided at its one end with an external thread that engages a com- plementary thread inside the pressure ring.

299959

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