Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     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 Language extensions for creating, accessing, querying and updating RDF data Methods and apparatus for power-equalized optical frequency comb generation System and method for versioning of configuration items Method and apparatus for inter-technology handoff of a multi-mode mobile station Apparatus and method for reordering data packets in communication system Arginine-containing compositions and methods for increasing blood flow using same Systems and methods for the detection of anatomical structures and positions thereof   Randomly Featured Patents Security apparatus Process for producing isoprenoid compounds by microorganisms and a method for screening compounds with antibiotic or weeding activity Logic circuit and word-driver circuit Discharge ignition apparatus for internal combustion engine having stepped spark advance Delayed state writes for an instruction processor Preliminary discharge acceptor mechanism and printing apparatus provided with the preliminary discharge acceptor mechanism Backlight unit and method for driving the same Method of manufacturing carrier web zipper for gusset bags Contour detector and data acquisition system for the left ventricular outline Method and apparatus for matching a user's use profile in commerce with a broadcast © 2006-2008 PatentGenius. All Rights Reserved.