Patent ID: 6434759
Filing Date: 2002-08-20
Classification: A47K,E03D,E03F

Abstract:
A vacuum waste system adapted for use with a waste pipe maintained under partial vacuum pressure, the vacuum waste system comprising:a receptacle for receiving waste, the receptacle having an outlet in fluid communication with the waste pipe and an upper surface defining an opening; a flush valve disposed in the waste pipe, the flush valve being normally closed but movable to an open position for a predetermined valve open period during a flush cycle; a lid movable between a raised position, in which the lid is spaced from the opening defined by the upper surface, and a lowered position, in which the lid covers the opening; and an actuator operatively connected to the lid for holding the lid in the raised position, the actuator automatically driving the lid during the flush cycle to the lowered position before the flush valve is in the open position and returning the lid to the raised position after the predetermined valve open period, when the flush valve has returned to the closed position.