Patents by Inventor Jill E. G. Wood

Jill E. G. Wood 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).

  • Hardness test indenters
    Patent number: 4434651
    Abstract: A hardness test indenter having a retangular base and four operative plane aces, a first pair of said faces meeting each other in a straight ridge with an included angle in the range from about 60.degree. to about 150.degree.; and a second pair of said faces making substantially equal angles with said straight ridge and so disposed in relation to one another and to said ridge that the first pair of faces have edges substantially symmetrically disposed in relation to said straight ridge; and said second pair of faces having between them an included angle in the range from about 60.degree. to about 150.degree.; the said straight ridge having a length not more than about 0.5 millimeter and not less than about 0.05 millimeter.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: March 6, 1984
    Assignee: The Secretary of State for Industry in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Jill E. G. Wood