TREA

Tail sealing means

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Industry

  • CPC
  • E21D9/0635
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D9/00Tunnels or galleries, with or without linings Methods or apparatus for making thereof Layout of tunnels or galleries

Current Industry

E21D9/0635Tail sealing means
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Hypergravity model test device and method for simulating progressiv...
    • Patent number 12,037,907
    • Issue date Jul 16, 2024
    • Zhejiang University
    • Xiaowei Ye
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shield sealing device and shield sealing method
    • Patent number 11,905,834
    • Issue date Feb 20, 2024
    • CHINA RAILWAY 14TH BUREAU GROUP CO., LTD.
    • Jian Chen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel excavating machine and excavating method
    • Patent number 6,595,724
    • Issue date Jul 22, 2003
    • Mitsubishi Heavy Industries, Ltd.
    • Shinichi Konda
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tail structure of shield driving machine
    • Patent number 6,092,963
    • Issue date Jul 25, 2000
    • Obayashi Corporation
    • Kiyoshi Miya
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shield driving machine
    • Patent number 6,082,930
    • Issue date Jul 4, 2000
    • Obayashi Corporation
    • Kiyoshi Miya
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Ring seal for apertures of multi-shelled structures, especially of...
    • Patent number 5,971,401
    • Issue date Oct 26, 1999
    • Beton - Und Monierbau GmbH
    • Bernhard Lubbers
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Sealing compositions
    • Patent number 5,478,385
    • Issue date Dec 26, 1995
    • Oxford Brookes University
    • James Washbourne
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shield tail sealing
    • Patent number 5,346,331
    • Issue date Sep 13, 1994
    • Phoenix Aktiengesellschaft
    • Siegfried Glang
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shield tunneling method and shield machine therefor
    • Patent number 4,990,027
    • Issue date Feb 5, 1991
    • Kubota Construction Co., Ltd.
    • Masato Hattori
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Process for making a tunnel and advancing a tunneling read with a w...
    • Patent number 4,911,578
    • Issue date Mar 27, 1990
    • Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann
    • Siegmund Babendererde
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Movable sealing assembly for tunneling machines
    • Patent number 4,909,668
    • Issue date Mar 20, 1990
    • Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann
    • Siegmund Babendererde
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Movable form front for a tunnel-lining form
    • Patent number 4,645,378
    • Issue date Feb 24, 1987
    • Gochtief Ag Vorm. Gebr. Helfmann
    • Volker Hentschel
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus and method for tunnel construction with shield drive
    • Patent number 4,557,627
    • Issue date Dec 10, 1985
    • Locher & Cie AGZZ
    • Walter A. Schmid
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel driving apparatus
    • Patent number 4,398,845
    • Issue date Aug 16, 1983
    • Gewerkschaft Eisenhutte Westfalia
    • Dieter Stuckmann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tail packing for a slurry pressurized shield
    • Patent number 4,209,268
    • Issue date Jun 24, 1980
    • Ohbayashi-Gumi, Ltd.
    • Toshio Fujiwara
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Seals for tunnelling shields
    • Patent number 4,139,989
    • Issue date Feb 20, 1979
    • Edmund Nuttall Limited
    • David R. Jones
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Methods and apparatus for constructing tunnels
    • Patent number 4,003,211
    • Issue date Jan 18, 1977
    • Gewerkschaft Eisenhutte Westfalia
    • Heinrich Klapdor
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Sealing means
    • Patent number 3,979,920
    • Issue date Sep 14, 1976
    • National Research Development Corporation
    • Roy Patrick Burgess
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3782738
    • Patent number 3,782,738
    • Issue date Jan 1, 1974
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3494136
    • Patent number 3,494,136
    • Issue date Feb 10, 1970
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1296312
    • Patent number 1,296,312
    • Issue date Mar 4, 1919
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    794633
    • Patent number 794,633
    • Issue date Jul 11, 1905
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    794634
    • Patent number 794,634
    • Issue date Jul 11, 1905
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    794579
    • Patent number 794,579
    • Issue date Jul 11, 1905
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    794632
    • Patent number 794,632
    • Issue date Jul 11, 1905
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    734265
    • Patent number 734,265
    • Issue date Jul 21, 1903
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    727799
    • Patent number 727,799
    • Issue date May 12, 1903
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    646354
    • Patent number 646,354
    • Issue date Mar 27, 1900
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    168146
    • Patent number 168,146
    • Issue date Sep 28, 1875
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents