Resources Contact Us Home
Browse by Category: Main > Household
Class Information
Number: 4/423
Name: Baths, closets, sinks, and spittoons > Flush closet > Bowl > Siphon discharge > With flush valve > With vacuum breaker
Description: Subject matter wherein the valve includes means to break a vacuum to prevent back siphonage or reverse flow.

Patents under this class:

Patent Number Title Of Patent Date Issued
7721359 Vacuum breaker, and water-feed valve assembly and water closet provided therewith May. 25, 2010
5875499 Recreational vehicle toilet with flush nozzle deflector shield Mar. 2, 1999
4672690 Vacuum tank construction for self-contained sewage handling apparatus Jun. 16, 1987

  Recently Added Patents
Nucleic acid-based tests for prenatal gender determination
System and method for generating profile morphing using cephalometric tracing data
System and method for wireless messaging in a wireless communication system
Method and structure of forming backside through silicon via connections
Display sheet, display device, and electronic apparatus
Invisible fence battery charger
Method and apparatus for executing load distributed printing
  Randomly Featured Patents
Wood panel clamping tool
Printed, soft, bulky single-ply absorbent paper having a serpentine configuration and low sidedness
Position digitizer circuit for a moveable instrument
Composition for the dyeing of human hair
Cleaning machine
Weighted carrying case
Variable capacity rotary compressor
Method for making a piezoelectric transducer
Gun sight system
Process for preparing benzoic acid derivative intermediates and benzothiophene pharmaceutical agents