TREA

Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement

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  • CPC
  • H01H33/555
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Parent Industries

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means

Current Industry

H01H33/555Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Arc extinguishing systems
    • Patent number 11,837,420
    • Issue date Dec 5, 2023
    • Siemens Aktiengesellschaft
    • Stefan Lecheler
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Expandable turret for electrical equipment
    • Patent number 11,469,039
    • Issue date Oct 11, 2022
    • Hitachi Energy Switzerland AG
    • Samuel Brodeur
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Subsea power distribution device and system
    • Patent number 10,374,398
    • Issue date Aug 6, 2019
    • FMC Kongsberg Subsea AS
    • Torbjørn Strømsvik
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Burst protector for high-voltage device
    • Patent number 9,899,134
    • Issue date Feb 20, 2018
    • MASCHINENFABRIK REINHAUSEN GMBH
    • Christian Boeger
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Safety device for a power transformer, and related power transforme...
    • Patent number 9,728,357
    • Issue date Aug 8, 2017
    • ABB Schweiz AG
    • Andrea Tonin
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Low force low oil trip mechanism
    • Patent number 8,331,066
    • Issue date Dec 11, 2012
    • Cooper Technologies Company
    • Nicholas Paul Brusky
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Device for explosion prevention of an on load tap changer including...
    • Patent number 8,319,590
    • Issue date Nov 27, 2012
    • Philippe Magnier LLC
    • Philippe Magnier
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Transformer conservator isolation valve (TCIV)
    • Patent number 7,642,455
    • Issue date Jan 5, 2010
    • V. K. Wakchaure
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Device and method for monitoring a gas volume in a unit filled with...
    • Patent number 7,614,299
    • Issue date Nov 10, 2009
    • Siemens Aktiengesellschaft
    • Friedrich Birner
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Circuit breaker for disconnecting an electrical apparatus from elec...
    • Patent number 6,479,780
    • Issue date Nov 12, 2002
    • ABB Oy
    • Esa Virtanen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Monitoring of decomposition gases in transformers by referencing vo...
    • Patent number 5,900,538
    • Issue date May 4, 1999
    • Jurgen Bastian
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Low oil trip and/or lockout apparatus
    • Patent number 4,591,816
    • Issue date May 27, 1986
    • RTE Corporation
    • Harvey W. Mikulecky
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Distribution transformer having a primary disconnect switch
    • Patent number 4,324,961
    • Issue date Apr 13, 1982
    • Westinghouse Electric Corp.
    • Donald J. Ristuccia
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Sudden pressure relay having seismic protection
    • Patent number 4,001,644
    • Issue date Jan 4, 1977
    • Westinghouse Electric Corporation
    • Robert C. Lingenfelter
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3898404
    • Patent number 3,898,404
    • Issue date Aug 5, 1975
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3423550
    • Patent number 3,423,550
    • Issue date Jan 21, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2972253
    • Patent number 2,972,253
    • Issue date Feb 21, 1961
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2638120
    • Patent number 2,638,120
    • Issue date May 12, 1953
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2616443
    • Patent number 2,616,443
    • Issue date Nov 4, 1952
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2470553
    • Patent number 2,470,553
    • Issue date May 17, 1949
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2026375
    • Patent number 2,026,375
    • Issue date Dec 31, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1911350
    • Patent number 1,911,350
    • Issue date May 30, 1933
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1899746
    • Patent number 1,899,746
    • Issue date Feb 28, 1933
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1879276
    • Patent number 1,879,276
    • Issue date Sep 27, 1932
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1876044
    • Patent number 1,876,044
    • Issue date Sep 6, 1932
    • G01 - MEASURING TESTING
  • Information Patent Grant

    1869176
    • Patent number 1,869,176
    • Issue date Jul 26, 1932
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1751222
    • Patent number 1,751,222
    • Issue date Mar 18, 1930
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1709723
    • Patent number 1,709,723
    • Issue date Apr 16, 1929
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1705715
    • Patent number 1,705,715
    • Issue date Mar 19, 1929
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1674444
    • Patent number 1,674,444
    • Issue date Jun 19, 1928
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents