Sharon P Dunlap

US Patent:

7237558, Jul 3, 2007

Filed:

Sep 30, 2003

Appl. No.:

10/675802

Inventors:

Melissa Ann Clark - Mocksville NC, US
Evon Llewellyn Crooks - Mocksville NC, US
Paul Eugene Braxton - Greensboro NC, US
Chandra Kumar Banerjee - Clemmons NC, US
Sharon Pitts Dunlap - Walnut Cove NC, US
Timothy Brian Nestor - Advance NC, US

Assignee:

R. J. Reynolds Tobacco Company - Winston-Salem NC

International Classification:

A24D 3/04

US Classification:

131342, 131341, 131336

Abstract:

A filter element incorporating an adsorbent material is provided. The filter element may comprise a first section of filter material and a second section of filter material spaced apart to form a compartment therebetween. The compartment may be filled with one or more adsorbents or the compartment may be divided into two regions, wherein one compartment region is filled with an adsorbent and the other compartment region is either filled with an ion-exchange resin or remains empty. The section of filter material adjacent to the tobacco rod may include one or more channels therethrough for passaging smoke directly from the tobacco rod into the adsorbent-filled compartment. The mouth end section of filter material may contain a breakable capsule, wherein the breakable capsule is filled with a flavoring agent capable of altering the taste characteristics of mainstream smoke.

US Patent:

7503330, Mar 17, 2009

Filed:

Sep 30, 2003

Appl. No.:

10/675577

Inventors:

August Joseph Borschke - Winston-Salem NC, US
Dwayne William Beeson - Kernersville NC, US
Sharon Pitts Dunlap - Walnut Cove NC, US
Thomas Albert Perfetti - Winston-Salem NC, US

Assignee:

R.J. Reynolds Tobacco Company - Winston-Salem NC

International Classification:

A24D 1/00

US Classification:

131360, 131364, 131365, 131276

Abstract:

A smokable rod for a smoking article, such as a cigarette, possesses a co-axial or concentric construction. A longitudinally extending inner core of tobacco cut filler is positioned within a smokable rod. The outer material that circumscribes the inner core in an annular fashion is composed of a tobacco material treated with a burn suppressing agent, and the outer material acts as a substrate for an aerosol forming material. In use, one end of the smokable rod is lit, and the tobacco cut filler of the inner core burns to yield tobacco smoke. The outer material smolders, and hence thermal decomposition products of the outer tobacco material and volatilized aerosol forming material are produced. When the opposite end of the smokable rod is drawn upon, an aerosol composed of tobacco smoke, thermal decomposition products of tobacco, and volatilized aerosol forming material, is provided.

US Patent:

7753056, Jul 13, 2010

Filed:

Feb 24, 2009

Appl. No.:

12/391514

Inventors:

August Joseph Borschke - Winston-Salem NC, US
Dwayne William Beeson - Kernersville NC, US
Sharon Pitts Dunlap - Walnut Cove NC, US
Thomas Albert Perfetti - Winston-Salem NC, US

Assignee:

R. J. Reynolds Tobacco Company - Winston-Salem NC

International Classification:

A24D 1/00

US Classification:

131360, 131365

Abstract:

A smokable rod for a smoking article, such as a cigarette, possesses a co-axial or concentric construction. The outer material that circumscribes the inner core in an annular fashion is composed of a tobacco material treated with a burn suppressing agent, and the outer material acts as a substrate for an aerosol forming material. A preferred aerosol forming material is glycerin. An outer paper wrapper circumscribes the length of the smokable rod, and another paper wrapping material also can circumscribe the inner core material. In use, one end of the smokable rod is lit, and the tobacco cut filler of the inner core burns to yield tobacco smoke. The outer material smolders, and hence thermal decomposition products of the outer tobacco material and volatilized aerosol forming material are produced. Alternatively, a smokable rod can be provided by positioning the tobacco cut filler in the outer annular region, and by constructing the inner core portion using the tobacco material treated with aerosol forming material and a burn suppressing agent.

US Patent:

7900639, Mar 8, 2011

Filed:

Jan 17, 2007

Appl. No.:

11/623870

Inventors:

Thomas Albert Perfetti - Winston-Salem NC, US
Paul Andrew Brinkley - Winston-Salem NC, US
Sharon Pitts Dunlap - Walnut Cove NC, US
Charles Hugh Risner - High Point NC, US

Assignee:

R. J. Reynolds Tobacco Company - Winston-Salem NC

International Classification:

A24B 3/14
A24B 15/12
A24B 1/00

US Classification:

131353, 131360, 131370, 131372

Abstract:

A reconstituted tobacco material incorporates an exogenous tocopherol or derivative thereof, such as in the amount of at least about 0. 1 weight percent. A tobacco blend can be formed by combining reconstituted tobacco material incorporating such an additive with one or more additional tobacco materials, such as burley tobacco, Oriental tobacco, and flue-cured tobacco. A smoking article, such as a cigarette, contains such a reconstituted tobacco, as part of the smokable material, as part of tobacco paper wrapping material, or as part of a reconstituted tobacco-containing filter element. The invention also provides a method of forming reconstituted tobacco material wherein a tocopherol or derivative thereof is added to the tobacco material, either by adding the tocopherol to an aqueous extract or water insoluble pulp formed during the reconstituted tobacco process or by adding the tocopherol to the solid reconstituted tobacco sheet after the aqueous extract and pulp are recombined.

US Patent:

8066011, Nov 29, 2011

Filed:

Sep 30, 2003

Appl. No.:

10/675584

Inventors:

Melissa Ann Clark - Mocksville NC, US
Sharon Pitts Dunlap - Walnut Cove NC, US
Chandra Kumar Banerjee - Clemmons NC, US

Assignee:

R. J. Reynolds Tobacco Company - Winston-Salem NC

International Classification:

A24D 3/06

US Classification:

131337, 131331, 131334, 131341, 131342, 131344, 131345

Abstract:

A filter element incorporating an adsorbent material is provided. The filter element may comprise a first section of filter material and a second section of filter material spaced apart to form a compartment therebetween. The compartment may be filled with one or more adsorbents or the compartment may be divided into two regions, wherein one compartment region is filled with an adsorbent and the other compartment region is either filled with an ion-exchange resin or remains empty. The section of filter material adjacent to the tobacco rod may include one or more channels therethrough for passaging smoke directly from the tobacco rod into the adsorbent-filled compartment. The mouth end section of filter material may contain a breakable capsule, wherein the breakable capsule is filled with a flavoring agent capable of altering the taste characteristics of mainstream smoke.

US Patent:

20040255965, Dec 23, 2004

Filed:

Jun 17, 2003

Appl. No.:

10/463211

Inventors:

Thomas Perfetti - Winston-Salem NC, US
Curtis McGee - Germanton NC, US
James Best - Winston-Salem NC, US
Paul Brinkley - Winston-Salem NC, US
Sharon Dunlap - Walnut Cove NC, US
Charles Risner - High Point NC, US

Assignee:

R. J. Reynolds Tobacco Company

International Classification:

A24B015/00

US Classification:

131/353000, 131/352000

Abstract:

A reconstituted tobacco material incorporates an exogenous tocopherol or derivative thereof, such as in the amount of at least about 0.1 weight percent. A tobacco blend can be formed by combining reconstituted tobacco material incorporating such an additive with one or more additional tobacco materials, such as burley tobacco, Oriental tobacco, and flue-cured tobacco. A smoking article, such as a cigarette, contains such a reconstituted tobacco, as part of the smokable material, as part of tobacco paper wrapping material, or as part of a reconstituted tobacco-containing filter element. The invention also provides a method of forming reconstituted tobacco material wherein a tocopherol or derivative thereof is added to the tobacco material, either by adding the tocopherol to an aqueous extract or water insoluble pulp formed during the reconstituted tobacco process or by adding the tocopherol to the solid reconstituted tobacco sheet after the aqueous extract and pulp are recombined.

US Patent:

20080173320, Jul 24, 2008

Filed:

Jan 19, 2007

Appl. No.:

11/625000

Inventors:

Sharon Pitts Dunlap - Walnut Cove NC, US
Scott William Foor - Winston-Salem NC, US
Daniel Verdin Cantrell - Lewisville NC, US
Jerry Wayne Marshall - Stokesdale NC, US
Dwayne William Beeson - Kernersville NC, US
Susan Marlene Adams - Pine Hall NC, US
Alvaro Gonzalez-Parra - Clemmons NC, US
David Neil McClanahan - Winston-Salem NC, US
Timothy Brian Nestor - Advance NC, US

International Classification:

A24D 1/02

US Classification:

131365

Abstract:

A smoking article is provided including (a) a tobacco rod comprising a smokable filler material contained within a circumscribing outer wrapping material, wherein the smokable filler material comprises at least about 45% by weight flue-cured tobacco based on the total dry weight of the smokable filler material; (b) one or more inner wrapping strips positioned between the tobacco rod and the outer wrapping material and extending longitudinally along the tobacco rod and including a burley tobacco; and (c) a filter element connected to the tobacco rod, the filter element having an end proximal to the tobacco rod and an end distal from the tobacco rod, wherein the filter element includes at least one fibrous tow section of filter material, a general adsorbent, and an ion exchange resin.

US Patent:

20110271968, Nov 10, 2011

Filed:

May 7, 2010

Appl. No.:

12/775892

Inventors:

Carolyn Rierson Carpenter - Lewisville NC, US
Barbara A. Reasor - Winston-Salem NC, US
Kenneth Allen Beard - Lexington NC, US
Chris J. Grimes - High Point NC, US
Sharon Pitts Dunlap - Walnut Cove NC, US
Andrea Holland - Charlotte NC, US

International Classification:

A24B 15/30
A24D 1/04
A24D 3/10
A24D 3/16
A24D 3/06
A24D 3/12

US Classification:

131275, 131342, 131274, 131334, 131332

Abstract:

A filter element for a smoking article is provided, the filter element including a first segment of fibrous tow filter material; a second segment of fibrous tow filter material in spaced relation to the first segment; and a cavity positioned between the two segments of fibrous tow filter material, the cavity containing a plurality of breakable capsules having an outer shell and an internal payload comprising a flavorant, wherein one segment of fibrous tow filter material includes an adsorbent material dispersed therein and the other segment is substantially free of adsorbent material. A cigarette that includes such a filter element is also provided.