F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 43/02 (2006.01) F04B 43/00 (2006.01) F04B 45/04 (2006.01) F04B 53/16 (2006.01)
Patent
CA 2442812
A non-metallic pressure cap equivalent for a metallic pressure cap of a diaphragm pump, is provided the non-metallic pressure cap having a plate portion, a flange portion, and a wall portion located between and connecting the plate and the flange portions. The thickness of the flange portion of the non-metallic pressure cap is greater than the thickness of a flange portion of the metallic pressure cap. Also provided is a non-metallic pressure cap for a diaphragm pump, the non-metallic pressure cap having a plate portion, a flange portion, and a wall portion located between and connecting the plate and the flange portions. The wall portion has a thickness, t w, and defines a radius, r, on an outer surface transition between the wall and flange portions, the ratio between the radius and the thickness of the wall portion being defined according to the following equation r > 1/3 (t w). A diaphragm pump having a non-metallic pressure cap equivalent is also provided having a plate portion, a flange portion, and a wall portion located between and connecting the plate and the flange portions. The thickness of the flange portion of the non-metallic pressure cap is greater than the thickness of a flange portion of the metallic pressure cap. The wall portion includes a radius, r, defined on an outer surface transition between the wall and flange portions, the ratio between the radius and the thickness of the wall portion being defined according to the following equation: r > 1/3 (t w).
Able Stephen D.
Roll Eric D.
Ingersoll-Rand Company
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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