Patents by Inventor Emerson B. FitzGerald

Emerson B. FitzGerald 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).

  • Thermoplastic powder coating systems
    Patent number: 4211691
    Abstract: A thermoplastic powder coating composition is provided, comprising particles of polymeric material comprising a mixture of polymer (A) and polymer (B),polymer (A) and polymer (B) being selected from the group consisting of polymer of ethylenically unsaturated monomer, alkyd, polyester, and polyester urethane,one of either polymer (A) or polymer (B) containing an average of about 0.9-1.1 reactive groups per molecule and the other of polymer (A) or polymer (B) containing an average of 1-10 reactive groups per molecule,the reactive groups on polymer (A) being coreactive in a condensation reaction with the reactive groups on polymer (B), andpolymer (A) and polymer (B) are compatible.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: July 8, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Emerson B. FitzGerald, Walter C. Meyer
  • Thermoplastic powder coating systems
    Patent number: 4200566
    Abstract: A thermoplastic powder coating composition is provided, comprising particles of polymeric material comprising a mixture of polymer (A) and polymer (B),polymer (A) and polymer (B) being selected from the group consisting of polymer of an alkyd, polyester, and polyester urethane,one of either polymer (A) or polymer (B) containing an average of about 0.9-1.1 reactive groups per molecule and the other of polymer (A) or polymer (B) containing an average of 1-10 reactive groups per molecule,the reactive groups on polymer (A) being coreactive in a condensation reaction with the reactive groups on polymer (B), andpolymer (A) and polymer (B) are compatible.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: April 29, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Emerson B. FitzGerald, Walter C. Meyer
  • Yarn consisting of drawn sintered PTF fibers and woven, non-woven and knitted fabrics; filter bags; ropes; and fire-protective clothing formed therefrom
    Patent number: 4168298
    Abstract: A process for forming polytetrafluoroethylene yarn by(1) forming an oriented polytetrafluoroethylene film by drawing a sintered sheet from about 5 to 30 times its original length at an elevated temperature; and(2) passing the oriented film through fibrillating means such as a high turbulent air velocity jet to form a yarn of entangled irregular shaped non-uniform staple fibrils.The yarn and woven, non-woven and knitted fabrics prepared from this yarn also are part of the invention.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: September 18, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Emerson B. Fitzgerald
  • Process for making polytetrafluoroethylene yarn
    Patent number: 4064214
    Abstract: A process for forming polytetrafluoroethylene yarn by1. forming an oriented polytetrafluoroethylene film by drawing a sintered sheet from about 5 to 30 times its original length at an elevated temperature; and2. passing the oriented film through fibrillating means such as a high turbulent air velocity jet to form a yarn of entangled irregular shaped non-uniform staple fibrils.The yarn and woven, non-woven and knitted fabrics prepared from this yarn also are part of the invention.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: December 20, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Emerson B. FitzGerald