F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/139, 251/34
F16K 25/00 (2006.01) F16K 3/08 (2006.01) F16K 27/04 (2006.01) F16K 47/04 (2006.01)
Patent
CA 1161017
F-0988 ABSTRACT OF THE INVENTION In a pressure let-down valve comprising a fixed choke and a variable choke means, a silver solder joint between the wear-resistant insert and the retaining ring is replaced by a mechanical joint. The mechanical joint is comprised of a split-locking ring, preferably consisting of two separate segments, fitting into an annular outwardly opening channel in the wear-resistant insert. The split-locking ring is fastened to the retaining ring to lock the wear resistant insert into place.
388623
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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