Thermostat apparatus

A thermostat apparatus, comprising in combination,

• a support housing, the support housing including a floor, and the support housing including a mounting flange mounted fixedly to an upper terminal end of the support housing in a spaced parallel relationship relative to the floor, with the mounting flange including a central flange opening, and
• a valve cap mounted above the mounting flange, with the valve cap including a rod coaxially directed through the central flange opening, and
• the rod including a rod plate fixedly and orthogonally mounted to a lower terminal end of the rod, the rod plate including a bi-metallic spring captured between the rod plate and a bottom surface of the mounting flange, and
• a plurality of by-pass openings directed through the mounting flange in a spaced relationship relative to one another, wherein the spaced relationship defines an equal predetermined spacing between adjacent by-pass openings, and
• wherein the by-pass openings include at least a first by-pass opening, a second by-pass opening, and a third by-pass opening, the first by-pass opening including a first by-metallic covering plate positioned over the first by-pass opening, a second bi-metallic covering plate positioned to overlie the second by-pass opening, and a third bi-metallic covering plate positioned to overlie the third by-pass opening, wherein the first bi-metallic covering plate is arranged to deflect relative to the mounting flange at a first temperature, the second bi-metallic covering plate is arranged to deflect at a second temperature, the third by-pass covering plate is arranged to deflect a third temperature, wherein the first temperature is greater than the second temperature and the second temperature is greater than the third temperature.