with valves kept in open position by means of air or water pressure or by vacuum

Patents Grantslast 30 patents

  • Information Patent Grant

    Pneumatic valve control device

    • Patent number 11,873,630
    • Issue date Jan 16, 2024
    • Kohler (China) Investment Co., Ltd.
    • Bin Guo
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Pressure flushing system and toilet

    • Patent number 11,773,576
    • Issue date Oct 3, 2023
    • Bingxing Huang
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Siphon activated valve

    • Patent number 11,434,631
    • Issue date Sep 6, 2022
    • Fluidmaster, Inc.
    • Tuan Le
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Discharge valve system and method

    • Patent number 11,391,391
    • Issue date Jul 19, 2022
    • Fluidmaster, Inc.
    • Tuan Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Drain fitting for a toilet cistern

    • Patent number 10,851,531
    • Issue date Dec 1, 2020
    • GROHEDAL Sanitaersysteme GmbH
    • Juergen Burkhardt
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Siphon activated valve

    • Patent number 10,774,512
    • Issue date Sep 15, 2020
    • Fluidmaster, Inc.
    • Tuan Le
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Discharge valve system and method

    • Patent number 10,767,766
    • Issue date Sep 8, 2020
    • Fluidmaster, Inc.
    • Tuan Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Vacuum operated valve

    • Patent number 10,704,244
    • Issue date Jul 7, 2020
    • Fluidmaster, Inc.
    • Tuan Le
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Flow diverter with antisiphon

    • Patent number 10,676,905
    • Issue date Jun 9, 2020
    • Fluidmaster, Inc.
    • Tuan Le
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Flow diverter with antisipohon

    • Patent number 10,316,502
    • Issue date Jun 11, 2019
    • Fluidmaster, Inc.
    • Tuan Le
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Flow diverter with antisiphon

    • Patent number 10,119,259
    • Issue date Nov 6, 2018
    • Fluidmaster, Inc.
    • Tuan Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Double flow control mechanism of a soft touch drain valve and a dou...

    • Patent number 9,790,675
    • Issue date Oct 17, 2017
    • Xiamen R&T Plumbing Technology Co., Ltd.
    • Haibin Chen
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Dual control mode-type deodorising and water drainage valve

    • Patent number 9,650,774
    • Issue date May 16, 2017
    • Xiamen Huierjie Sanitary Ware Technology Co., Ltd.
    • Xiangji Zheng
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Toilet water reservoir water dumping valve for sealing the reservoi...

    • Patent number 5,652,970
    • Issue date Aug 5, 1997
    • Josef Wodeslavsky
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Multiple flush toilet valve assembly

    • Patent number 5,237,711
    • Issue date Aug 24, 1993
    • La Vaughn L. Mortensen
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Hydropneumatic flusher for toilet tanks

    • Patent number 5,228,147
    • Issue date Jul 20, 1993
    • Pablo Fominaya Agullo
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Flush mechanism for toilets

    • Patent number 5,088,133
    • Issue date Feb 18, 1992
    • Tsai-An Chen
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Universal toilet tank water saving device

    • Patent number 5,073,995
    • Issue date Dec 24, 1991
    • Neubauer-Jennison Construction
    • Gregory F. Jennison
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Two-stage water discharge mechanism for flush toilet tank

    • Patent number 5,003,644
    • Issue date Apr 2, 1991
    • Chin-Ming Huang
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3812545

    • Patent number 3,812,545
    • Issue date May 28, 1974
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3466672

    • Patent number 3,466,672
    • Issue date Sep 16, 1969
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3466673

    • Patent number 3,466,673
    • Issue date Sep 16, 1969
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3466674

    • Patent number 3,466,674
    • Issue date Sep 16, 1969
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3360234

    • Patent number 3,360,234
    • Issue date Dec 26, 1967
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3331084

    • Patent number 3,331,084
    • Issue date Jul 18, 1967
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3320622

    • Patent number 3,320,622
    • Issue date May 23, 1967
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    3088122

    • Patent number 3,088,122
    • Issue date May 7, 1963
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    2882533

    • Patent number 2,882,533
    • Issue date Apr 21, 1959
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    2867820

    • Patent number 2,867,820
    • Issue date Jan 13, 1959
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    2849725

    • Patent number 2,849,725
    • Issue date Sep 2, 1958
    • E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    PNEUMATIC VALVE CONTROL DEVICE

    • Publication number 20230417036
    • Publication date Dec 28, 2023
    • Kohler (China) Investment Co., Ltd.
    • Bin Guo
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    PNEUMATIC VALVE CONTROL DEVICE

    • Publication number 20230193610
    • Publication date Jun 22, 2023
    • Kohler (China) Investment Co., Ltd.
    • Bin Guo
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    AIR RELEASE VALVE AND AIR PRESSURE DRIVEN TOILET WATER TANK DRAIN V...

    • Publication number 20230160190
    • Publication date May 25, 2023
    • LAB (XIAMEN) SANITARY FITTINGS INC.
    • ZIPENG ZHANG
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Pressure flushing system and toilet

    • Publication number 20220243440
    • Publication date Aug 4, 2022
    • ECO (XIAMEN) TECHNOLOGY INC.
    • Bingxing HUANG
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Flushometer system

    • Publication number 20220025627
    • Publication date Jan 27, 2022
    • Sloan Valve Company
    • Jon Demczewski
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    SIPHON ACTIVATED VALVE

    • Publication number 20210002879
    • Publication date Jan 7, 2021
    • Fluidmaster, Inc.
    • Tuan Le
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Application

    FLOW DIVERTER WITH ANTISIPHON

    • Publication number 20190071853
    • Publication date Mar 7, 2019
    • Fluidmaster, Inc.
    • Tuan LE
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    VACUUM OPERATED VALVE

    • Publication number 20180080206
    • Publication date Mar 22, 2018
    • Fluidmaster, Inc.
    • Tuan LE
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    SIPHON ACTIVATED VALVE

    • Publication number 20180066421
    • Publication date Mar 8, 2018
    • Fluidmaster, Inc.
    • Tuan LE
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    FLOW DIVERTED WITH ANTISIPOHON

    • Publication number 20180051450
    • Publication date Feb 22, 2018
    • Fluidmaster, Inc.
    • Tuan LE
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    FLOW DIVERTER WITH ANTISIPHON

    • Publication number 20170152652
    • Publication date Jun 1, 2017
    • Fluidmaster, Inc.
    • Tuan LE
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    RETRO FLUSH TOILET

    • Publication number 20150033462
    • Publication date Feb 5, 2015
    • Norman Usher
    • E03 - WATER SUPPLY SEWERAGE