Patents by Inventor David Rushforth

David Rushforth 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: 20150114412
    Abstract: The invention relates to smoking articles (10) comprising a rod of smokeable material (11) and a filter (12) attached to one end of the rod, said filter comprising at least two sections and being wrapped in a porous plug wrap, wherein a first tipping wrapper (14) overlies the join between the rod of smokeable material and the filter, and at least one additional tipping wrapper (15) is provided around the filter, spaced from and separate to the first tipping wrapper such that a portion of the porous plug wrap is exposed between the first and at least one additional tipping wrapper, and wherein the tipping wrappers are normally less porous than the plug wrap. However if the tipping wrappers are more porous than the plug wraps, the split tipping will still retain its functionality.
    Type: Application
    Filed: April 24, 2013
    Publication date: April 30, 2015
    Applicant: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
    Inventors: David John Dittrich, Mike Bevan, David Rushforth, David Lewis
  • Publication number: 20140026912
    Abstract: A fleece for a smokeless tobacco pouch is disclosed. The fleece is formed with apertures.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 30, 2014
    Applicant: British American Tobacco (Investments) Limited
    Inventors: David RUSHFORTH, Eva SOMMARSTROM, Paul WORMALD
  • Publication number: 20130269715
    Abstract: A preformed mouldable oral tobacco product is disclosed which does not exhibit any brittleness and has a three-point bending strength of less than 4N, and method of manufacturing the same. Also disclosed is a preformed mouldable oral tobacco product which exhibits a friability value of less than 0.5%.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 17, 2013
    Applicants: Fiedler & Lundgren AB, British American Tobacco (Investments) Limited
    Inventors: David Rushforth, Eva Sommarstrom, Hans Tomas Essén
  • Publication number: 20130137561
    Abstract: The present invention relates to a method of producing a filter element for inclusion in a smoking article, the method comprising applying an additive to filter material, the additive being solid at room temperature and the method involving heating the additive so that it melts.
    Type: Application
    Filed: May 11, 2011
    Publication date: May 30, 2013
    Applicant: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
    Inventors: John Sampson, David Rushforth
  • Publication number: 20130047999
    Abstract: A filter (2) for a smoking article (1) is provided by the present invention, the filter comprising a vehicle containing a liquid capable of enhancing the disintegration and/or dispersibility of the smoking article. A method of enhancing the disintegration and/or degradation of a smoking article is also provided, wherein the smoking article comprises a vehicle containing a liquid capable of enhancing the disintegration and/or degradation of the smoking article.
    Type: Application
    Filed: December 21, 2010
    Publication date: February 28, 2013
    Applicant: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
    Inventor: David Rushforth
  • Publication number: 20130025611
    Abstract: The present invention relates to the inclusion of additives in a filter element comprising a non-woven sheet material or paper as the filter material to increase the selective removal of semi-volatile compounds and to improve the taste characteristics of the smoke drawn through the filter element. The increased selective removal of semi-volatile compounds from the smoke being drawn through the filter element is provided by polyethylene glycol. TEC and/or triacetin are additives which have been found to improve the taste characteristics of smoke drawn through the filter element.
    Type: Application
    Filed: December 21, 2010
    Publication date: January 31, 2013
    Applicant: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
    Inventors: David Rushforth, John Sampson
  • Patent number: D729974
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: May 19, 2015
    Assignee: British American Tobacco (Investments) Limited
    Inventors: Eva Sommarstrom, David Rushforth
  • Patent number: D732732
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: June 23, 2015
    Assignee: British American Tobacco (Investments) Limited
    Inventors: David Rushforth, Eva Sommarstrom, Paul Wormald