Patents Assigned to Cooper Industries, LLC
  • Patent number: 8801975
    Abstract: An electrical device having therein a dielectric fluid composition, wherein the dielectric fluid composition includes at least one refined, bleached and deodorized vegetable oil and at least one antioxidant, wherein the dielectric fluid composition has a pour point of less than about ?20° C. as measured according to either of ASTM D97 or ASTM D5950.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: August 12, 2014
    Assignee: Cooper Industries, LLC
    Inventors: Kevin J. Rapp, Charles Patrick McShane, Gary A. Gauger, Arthur W. Lemm
  • Patent number: 8617434
    Abstract: A dielectric fluid comprising hydrocarbon liquid admixed with an ester-based compound, wherein the ester-based compound is present in an effective amount to impart breakdown inhibiting properties to a paper insulation material when the dielectric fluid is in contact with the paper material.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 31, 2013
    Assignee: Cooper Industries, LLC
    Inventors: Kevin J. Rapp, Jerry L. Corkran, Gary A. Gauger, Charles P. McShane
  • Patent number: 7592545
    Abstract: A fitting for connecting conduit. The fitting includes a plurality of electrical conductors running through the fitting and a sealing compound that has been expanded within the fitting to separate the electrical conductors from each other and sides of the fitting. In a further embodiment, the fitting includes a plurality of conductors running through the fitting and a sealing compound that has been expanded within the fitting to separate the conductors from each other and sides of the fitting. The fitting includes a first plug that is secured within a first opening in the fitting such that the first plug is inserted into the first opening after the sealing compound is added to the fitting through the first opening.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: September 22, 2009
    Assignee: Cooper Industries, LLC
    Inventors: Paul S. Babiarz, William Bradley Delans