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US 4,468,054 AGranted
Flange mounted thermostatic expansion valve
AssigneeThe Singer Company
InventorCharles D. Orth
Life of this patent
Estimating the term…
Abstract
The inlet and outlet tubes on each side of the valve body are connected to the valve body by a notched plate engaging the shoulder upset from the tube. The upset forms a metal-to-metal seal against the seat in the body while the O-ring engages the wall of the flared section of the inlet leading to the smaller bore which receives the end of the tube.
Claims1
A valve having a body including a plurality of ports each having a seat area surrounding a section leading to a bore,
- a plurality of tubes each having an end fitting snugly in a respective bore,
- each of said tubes having an upset spaced from said end and seated on said seat area,
- a plurality of O-rings each between a respective end and a respective upset of a respective tube and engaging a respective section of a respective bore,
- a plate having a plurality of notches each fitting over a respective tube and engaging a respective upset, all of said notches opening on the same edge of said plate and extending inwardly from said edge in parallel alignment, and
- a screw holding the plate on said body to retain said plurality of tubes.
2 more elements
Dependencies are inferred from the claim text.