Patents by Inventor Richard Burley

Richard Burley 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).

  • Publication number: 20120297650
    Abstract: The present invention relates to greetings cards. The present invention relates in particular to methods of addressing the apparent short-term nature of cards. Many card are simply placed in a trash basket after use. This represents a tremendous waste; further whilst it is sometimes desired to retain a card, the card is generally manufactured to a cost which means that one is less likely to want to retain such a card. The present invention seeks to provide a solution to the problems addressed above. The present invention seeks to provide a greetings card (14) which is both simple and convenient to retain. The card comprises an adhesive member (35,36,37) allowing it to be re-used and thereby provides an economical product in terms of cost and for the environment.
    Type: Application
    Filed: January 27, 2011
    Publication date: November 29, 2012
    Inventor: Richard Burley
  • Patent number: 5114535
    Abstract: A process for making cellulose acetate from wood pulp takes wet wood pulp and instead of converting it into dry pulp sheet which is the usual feedstock for acetate, dries and mechanically separates the pulp into a cellulose flock using a pin mill through which a hot drying gas is passed. Deactivation of the cellulose is avoided by control of the drying gas exit temperature to 80.degree. C. to 95.degree. C. and of the moisture content of the cellulose flock to 4 to 15% by weight. The flock produced may be acetylated directly without any need for reactivation treatments additional to the normal activation with acetic acid.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: May 19, 1992
    Assignee: Courtaulds PLC
    Inventors: Richard Burley, Patrick Roche
  • Patent number: 5036900
    Abstract: Cellulosic sheet material is processed in preparation for esterification for example acetylation to produce cellulose acetate, by treating the sheet material with water and then feeding the wetted material into a machine that simultaneously shreds and dries the material. The conditions in the machine are carefully controlled (outlet temperature not in excess of 110.degree. C. and moisture content 4-15% by weight) to ensure that the cellulosic material does not become deactivated towards esterification. The method enables low alpha content cellulosic material supplied in the form of high density sheet to be acetylated to produce high quality cellulose acetate flake.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: August 6, 1991
    Assignee: Courtaulds PLC
    Inventors: Richard Burley, Lucjan S. Slota