Patent ID: 7571739

Claim:
A condensate drain comprising: a body defining an interior space; an inlet opening in fluid communication with the interior space of the body for allowing condensate to enter into the interior space; an outlet opening in fluid communication with the interior space of the body for allowing condensate to exit the interior space; and a float having a top, a bottom and being disposed in the interior space for movement within the interior space relative to the body generally along a float axis between a closed position in which the float at least partially blocks fluid communication from the inlet opening to the outlet opening and an open position in which the float does not block fluid communication from the inlet opening to the outlet opening, the float being buoyant so that the float is moved to the open position by condensate as condensate fills the interior space of the body, the float including a passage extending from an aperture opening into the interior space of the body in the closed position to a bleed port in communication with the outlet opening in the closed position to permit fluid communication between the interior space of the body and the outlet opening in the closed position of the float, the passage being free of any valve throughout its length; the float further comprising an engagement portion located at the bottom of the float and covering the outlet opening in the closed position, the engagement portion having the bleed port therein and comprising an orifice arranged to open into the interior space of the body in the closed position at a location spaced from where the float passage opens into the interior space of the body, the orifice, bleed port and float passage opening into each other for fluid communication.