Patents by Inventor Peter JESSON

Peter JESSON 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).

  • Investment casting pattern
    Patent number: 10758967
    Abstract: An investment casting pattern including: a consumable body formed of: a first body portion; and a second body portion; and a fastener arranged to form an interface between the first body portion and the second body portion, and to locate the first body portion relative to the second body portion, wherein the fastener is formed of a different material than the first body portion and the second body portion.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: September 1, 2020
    Assignees: ROLLS-ROYCE plc, ROLLS-ROYCE DEUTSCHLAND LTD & CO
    Inventors: David Stefan Isles, Mareike Wiebalck, Peter Jesson, Mark Mullan, Christopher A Hall
  • INVESTMENT CASTING PATTERN
    Publication number: 20190388961
    Abstract: An investment casting pattern including: a consumable body formed of: a first body portion; and a second body portion; and a fastener arranged to form an interface between the first body portion and the second body portion, and to locate the first body portion relative to the second body portion, wherein the fastener is formed of a different material than the first body portion and the second body portion.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 26, 2019
    Applicants: ROLLS-ROYCE plc, Rolls-Royce Deutschland Ltd & Co KG
    Inventors: David Stefan ISLES, Mareike WIEBALCK, Peter JESSON, Mark MULLAN, Christopher A HALL
  • Selected phosphorus complexes of zerovalent iron
    Patent number: 3997579
    Abstract: Selected novel phosphorus complexes of zerovalent iron containing phosphite ester ligands and, optionally diphosphine ligands, e.g., pentakis(trimethyl phosphite iron) and bis[ethylenebis(diphenylphosphine)] (trimethyl phosphite) iron, are disclosed. The compounds are prepared by various methods, by cocondensation of the vapors of iron and the ligand compound on a cold surface, e.g.,Fe + 5L .fwdarw. FeL.sub.5,by displacement reaction of the ligand with bis(cyclooctadiene)iron, by "wet-reduction" methods (preferred), e.g.,FeBr.sub.2 + 5L Na.sub.x Hg.sub.y .fwdarw. FeL.sub.5 + 2NaBr,and, where two diphosphines are desired, by displacement of ethylenes, e.g.,Fe(ethylene)(diphosphine).sub.2 + L .fwdarw. FeL(diphosphine).sub.2 + ethylene.The new compounds are useful as catalysts for the hydrocyanation of ethylene.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: December 14, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James Peter Jesson, Chadwick Alma Tolman