Fluid handling – Ambient condition change responsive – Atmospheric
Patent
1998-03-27
1999-12-21
Chambers, A. Michael
Fluid handling
Ambient condition change responsive
Atmospheric
137 62, 251337, 267158, 267165, 267167, F16K 1738
Patent
active
060035382
ABSTRACT:
A drain valve providing a drain sleeve having a first end, a second end and a flow-chamber therebetween. The first end includes a first diameter being smaller than a second diameter of the second end. The first diameter and the second diameter cooperate to define an annular shoulder therebetween. The first end is threadingly received by an air conditioner outlet and the drain sleeve has at least one drain hole therethrough near the shoulder for draining condensation from the air conditioner outlet. An outer cap is provided having an outer wall and an annular side wall projecting perpendicularly from an outer periphery of the end wall. The side wall is the outer cap is threadingly engageable with the drain sleeve second end. A sealing assembly is fixedly connected at a first end thereof to the end cap end wall and includes a second end thereof projecting inwardly from the end cap end wall towards the shoulder. The sealing assembly is moveable in response to changes in ambient temperature between a first position, wherein the sealing assembly second end is disposed in abutting relation to the shoulder, and a second position, wherein the sealing assembly second end is disposed outwardly of the shoulder. The sealing assembly includes a metal spring being substantially S-shaped.
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Chambers A. Michael
Lamb Charles G.
McShane Thomas L.
Salazar John F.
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