Abstract: A condensate management system for an air conditioning condensate drainage system is provided. The condensate management system may comprise an inlet and an outlet; a primary condensate flow path from the inlet to the outlet; a check valve disposed along the primary condensate flow path; a flush path from the inlet to the outlet; a pump coupled to the flush path; and a logic panel configured to actuate the pump to a flushing mode. The check valve may be configured to allow fluid flow from the inlet to the outlet. When the logic panel is configured to actuate the pump to the flushing mode, the pump is configured to exert a negative pressure at the inlet and a positive pressure at the outlet. Other system and methods to flush a condensate drain system are also described.

Abstract: A condensate management system for an air conditioning condensate drainage system is provided. The condensate management system may comprise an inlet and an outlet; a primary condensate flow path from the inlet to the outlet; a check valve disposed along the primary condensate flow path; a flush path from the inlet to the outlet; a pump coupled to the flush path; and a logic panel configured to actuate the pump to a flushing mode. The check valve may be configured to allow fluid flow from the inlet to the outlet. When the logic panel is configured to actuate the pump to the flushing mode, the pump is configured to exert a negative pressure at the inlet and a positive pressure at the outlet. Other system and methods to flush a condensate drain system are also described.

Abstract: A fluid management system for a drain is provided. The fluid management system includes an upstream drainage portion in fluid communication with the drain and a downstream drainage portion; a flushing assembly having an inlet and an outlet, wherein the flushing assembly is in fluid communication with the upstream drainage portion and the downstream drainage portion; a filter assembly disposed with the upstream drainage portion; and a logic panel configured to actuate the flushing assembly between a flushing mode and a standby mode. When the flushing assembly is actuated to the flushing mode, the flushing assembly is configured to exert a negative pressure at the inlet and a positive pressure at the outlet.

Abstract: A drainage system for a drain is provided. The drainage system includes a fluid flow path between the inlet and the outlet; a flushing system disposed with the fluid flow path; and a reservoir. The reservoir is configured for holding a stored amount of fluid originating from the drain. The flushing system is configured to use at least a portion of the stored amount of fluid. Other system and methods to flush a drain system are also described.

Abstract: An intelligent condensate management system for purging and cleaning an air conditioning condensate drainage system, the intelligent condensate management system comprises a housing, the housing having an inlet and an outlet; a primary condensate flow line providing a flow path between the housing inlet and outlet, the primary condensate flow line having a check valve; a flush line providing a flow path between the housing inlet and outlet parallel to the primary condensate flow line, the flush line having a pump, wherein an inlet to the flush line is connected to a lower portion of the housing inlet; a logic panel for actuating the pump between a standby mode and a flushing mode; wherein the check valve is configured to allow flow from the housing inlet to the housing outlet; wherein actuating the pump to a flushing mode causes the check valve to close. Also described are methods to flush a condensate drain system.

Abstract: A condensate management system for an air conditioning condensate drainage system is provided. The condensate management system may comprise an inlet and an outlet; a primary condensate flow path from the inlet to the outlet; a check valve disposed along the primary condensate flow path; a flush path from the inlet to the outlet; a pump coupled to the flush path; and a logic panel configured to actuate the pump to a flushing mode. The check valve may be configured to allow fluid flow from the inlet to the outlet. When the logic panel is configured to actuate the pump to the flushing mode, the pump is configured to exert a negative pressure at the inlet and a positive pressure at the outlet. Other system and methods to flush a condensate drain system are also described.

Abstract: A modifier composition which provides retention of surface smoothness and internal appearance while imparting improved low-temperature impact properties to molded thermoplastics and the thermoplastic molding compositions containing said modifier, the modifier comprising a crystalline thermoplastic resin and a modifier formed by combining a grafted EPM or EPDM rubber and a reactive polystyrene.

Abstract: A thermoplastic molding composition and modifier for improving the impact strength and toughness thereof in which the modifier is the combination of (1) an EPM or EPDM rubber grafted with an alpha-beta unsaturated dicarboxylic acid or anhydride or an epoxy functional alpha-beta ethylenically unsaturated hydrocarbon and (2) an epoxy acrylate oligomer of bisphenol A.

Abstract: A prosthetic valve, suitable for use as a mitral valve replacement, has a D-shaped annular seat-forming member and obturating flap, the flap having a major area formed by a rigid sheet of similar D-shape and extent for direct support on the seat when the valve is closed, and a flexible sheet hinge connecting the flap and annular member as a hinge along their straight edge portions. The rigid sheet is preferably scalloped around its free edge, with a flexible skirt being located across the incursions of this shaping, and is also preferably dished inwardly towards the valve.