Resources Contact Us Home
Flapper flush valve

Image Number 3 for United States Patent #3935598.

A toilet tank flapper valve providing user selection of either a full or partial dispensing of the liquid contents of the tank. A novel ball-check valve particularly located in the flapper valve either obstructs water from entering or permits it to enter the buoyancy chamber of the flapper valve. When water is permitted to enter, a partial dispensing action results.

  Recently Added Patents
Block polymers and their process of preparation
Digital broadcast receiver and method for processing caption thereof
Method for manufacturing light emitting diodes
Methods and apparatus for imaging in conjunction with radiotherapy
Sensor chip, sensor cartridge, and analysis apparatus
Porous objects having immobilized encapsulated biomolecules
  Randomly Featured Patents
Partial band - whole band energy discriminator
Bicycle with a front fork wheel suspension
Figure toy with rapidly retractable trap element
Weight stack frame
Method and apparatus for permanent sub-network connections in a communication network
Substrate thickness measurement using oblique incidence multispectral interferometry
Organically complexed nanocatalysts for improving combustion properties of fuels and fuel compositions incorporating such catalysts
Relational database management encryption system
Lifting latch hinge for tailgate on refuse hauler/compactor
Low particle wafer automatic flat aligner