Air valve push button adapter

A universal push button assembly for mounting a diaphragm type control and for producing a pulse of air pressure from said control to operate a remote water metering valve when a push button portion of said assembly is depressed, said assembly to be installed in countertops or lavatories having openings therethrough of various diameters and thicknesses of various amounts, said assembly comprising

• (a) a body having
• (i) a circular cap having a diameter greater than the largest diameter of a range of said opening diameters,
• (ii) a cylindrical shank concentric with and attached at a proximal end thereof to said cap, said shank having a diameter less than the smallest of said range of said opening diameters, and a length greater than the largest of said thicknesses, said shank threaded over its length,
• (iii) a threaded nipple at a distal end of said shank for attachment to said diaphragm type control,
• (iv) said body having an axial cylindrical opening through said cap, said shank and said nipple;
• (b) a centering ring disposed on said shank for centering said shank in an opening;
• and
• (c) a cylindrical push rod disposed through said axial opening, said rod having a first end thereof having a reduced diameter push button portion projecting from said cap and a second end thereof contacting a diaphragm of said control.