Patents by Inventor Margaret Ellis

Margaret Ellis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5962392
    Abstract: Thickened aqueous compositions comprising soluble peracids, particularly peracetic acid are provided. The compositions are thickened by the use of one or more aliphatic alcohol ethoxylates having the general formula: R.sup.1 R.sup.2 CH--(OCH.sub.2 CH.sub.2).sub.n --OH in which R.sup.1 and R.sup.2 are each either hydrogen or linear or branched alkyl such that R.sup.1 plus R.sup.2 has a total of from 7 to 22 carbon atoms, and n is selected in the range of 1 to 15, such that the number ratio of carbon atoms in R.sup.1 plus R.sup.2 :n is greater than or equal to 3:1; and a co-surfactant selected from the group consisting of anionic surfactants, amine oxides, amphoteric surfactants and quaternary ammonium compounds.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: October 5, 1999
    Assignee: Solvay Interox Limited
    Inventors: Christopher Revell, Enid Margaret Ellis
  • Patent number: 5689984
    Abstract: A security locking assembly comprises a face plate locatable upon a dead bolt lock having a turn knob and a C-shaped component. The face plate has first and second apertures extending through it above and below the turn knob. A planar member with a circular hole is affixed to the face plate and extends within the dead bolt lock opposite from the turn knob. The C-shaped component includes a first horizontal bar, a second horizontal bar and a vertical bar. Each horizontal bar has an inboard end and an outboard end. The vertical bar includes an upper end, a lower end and a center point. The first and second horizontal bars are pivotally coupled in a generally perpendicular orientation to the upper and lower ends of the vertical bar, respectively. The vertical bar is pivotally coupled to the planar member by a hinge pin coupled through the aligned central hole of the vertical bar and circular hole of the planar member.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: November 25, 1997
    Inventors: Sorin Diculescu, Margaret Ellis