| http://www.w3.org/ns/prov#value | - The second and herein central part 14 of the valve of this invention comprises a central chamber 50 preferably substantially conical or frusto-conical shape, the base of which chamber 50 fits over and around the periphery of the diaphragm 40 and is clamped in place thereby such as a peripheral flange or shoulder or rib portion 52 formed into the body part or piece 14.
|
