F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/56
F16K 15/14 (2006.01) F16K 15/10 (2006.01)
Patent
CA 1215606
ABSTRACT AN IMPROVED VALVE COMPONENT The invention relates to an improved valve component such as a spring or cushion plate or, in particular, a valve plate for a plate-type non-return valve wherein the flexing action, performance and reliability is improved by formation of flexible guide arms each having a central axis extending as a continuous curve, preferably a spiral, and extending at continuously increasing distance from the center of the plate to thereby minimize stresses therein which hitherto occurred with known plates having straight portions leading via an angled portion to arcuate portions concentric with the center of the plate. An advantageous effect is achieved according to another aspect of the invention wherein the resilient or flexible guide arms of any desired shape, each preferably having a spiral portion lead to a radially extending portion, which each bisects a valve closure and joins therewith in a peripheral region to provide added length therefor; said valve closure preferably having portions extending radially inwards.
447480
Metallic Valve Company Limited (the)
Ridout & Maybee Llp
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