Resources Contact Us Home
Pressurized water closet flushing system

Image Number 4 for United States Patent #5553333.

An apparatus for flushing a water closet bowl includes a pressurizable reservoir, within which is formed a primary and a secondary pressure zone. Formed at the bottom of the reservoir is an exit aperture through which the pressurized fluid is discharged into the bowl. Movably disposed within the reservoir is an elongate piston member. Formed at the top of the piston member is a hollow cup, which is movably disposed within a downwardly extending hollow cylinder within which is formed the secondary pressure zone. Formed at the bottom of the piston is a plug which seals the exit aperture. During a flushing action, pressure within the secondary pressure zone is released by operating a flushing lever, and the piston moves upwardly so as to release the plug from the exit aperture. In one embodiment, the flushing apparatus includes a fluid inlet regulator that controls the amount of fluid that is introduced into the reservoir from a fluid supply line. The inlet regulator also includes a back flow prevention mechanism which prevents fluid from reentering the fluid supply line in the event of a negative pressure therein. In another embodiment the flushing apparatus includes an overpressure protection mechanism formed within the piston.

  Recently Added Patents
Profile-based user access to a network management system
Broadband optical network apparatus and method
JTAG multiplexer with clock/mode input, mode/clock input, and clock output
Chromene compound
Media processing method and device
Navigating applications using side-mounted touchpad
Patterned MR device with controlled shape anisotropy
  Randomly Featured Patents
Sensor for detecting the position of a movable magnetic object and a conveying device having the sensor
Work vehicle viewing system
Control device for differential limiting mechanisms of four-wheel drive car
Method and system for quantity entry
Self-locking control syringe
Zinc chloride complex compounds
Container with lid
See-through display with an optical assembly including a wedge-shaped illumination system
Magnetic disk device using a contact start stop system
Catheter sensor and memory unit