Patents by Inventor Thomas L. Tattersall

Thomas L. Tattersall 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).

  • Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane
    Patent number: 7531496
    Abstract: Disclosed are binary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) or nonafluoromethoxybutane. The present invention further includes ternary or quaternary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane and 1,1,1,2,3,4,4,5,5,5-decafluoropentane or nonafluoromethoxybutane, and additionally trans-1,2-dichloroethylene, n-propyl bromide, acetone, methanol, ethanol or isopropanol.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 12, 2009
    Assignee: El and Micro Care Corp
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer, Thomas L. Tattersall
  • Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane
    Patent number: 6951835
    Abstract: Disclosed are binary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) or nonafluoromethoxybutane. The present invention further includes ternary or quaternary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane and 1,1,1,2,3,4,4,5,5,5-decafluoropentane or nonafluoromethoxybutane, and additionally trans-1,2-dichloroethylene, n-propyl bromide, acetone, methanol, ethanol or isopropanol.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: October 4, 2005
    Assignees: E.I. du Pont de Nemours and Company, Micro Care Corporation
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer, Thomas L. Tattersall
  • Non-flammable, high-solvency compositions comprising trans-1,2-dichloroethylene, solvent, and inerting agent
    Patent number: 6852684
    Abstract: Disclosed are non-flammable, high-solvency compositions having utility as cleaning agents in the electronics and refrigeration industries, and as a medium for mold release agents. The compositions are non-flammable by Flame Extension Test ASTM D-3065 and Flash Point-Tag Closed Cup Test ASTM D-56-82, and have a Kauri Butanol value of at least about 40 by ASTM 1133-94. The compositions comprise the components: a.) trans-1,2-dichloroethylene; and b.) solvent selected from: i.) oxygen-containing solvents selected from alcohols, ketones, esters, siloxanes, and ethers; and ii.) hydrocarbon solvents represented by CtH2t+2 or CtH2t, wherein t is from 4 to 8; and c.) an inerting agent selected from: i.) hydrofluorocarbon inerting agents represented by the formula CxHyF(2x+2?y), wherein x is from 3 to 8, y is from 1 to 4, and the mole ratio of F/H in the hydrofluorocarbon inerting agent is greater than 1.6; ii.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: February 8, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Greg A. Westbrook, Thomas L. Tattersall, Mark C. Wolff
  • Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane
    Publication number: 20040171510
    Abstract: Disclosed are binary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) or nonafluoromethoxybutane. The present invention further includes ternary or quaternary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane and 1,1,1,2,3,4,4,5,5,5-decafluoropentane or nonafluoromethoxybutane, and additionally trans-1,2-dichloroethylene, n-propyl bromide, acetone, methanol, ethanol or isopropanol.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 2, 2004
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer, Thomas L. Tattersall