Patents by Inventor Donald J. Townsend

Donald J. Townsend 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).

  • Patent number: 7416751
    Abstract: The present invention includes a method for producing a chewing gum with a modified release sweetener selected from the group of N-substituted derivatives of aspartame, particularly neotame, as well as the chewing gum so produced. The modified release neotame or other N-substituted derivative of aspartame sweetener is obtained by physically modifying the sweetener properties by coating and drying. Neotame or another N-substituted derivative of aspartame sweetener is coated by encapsulation, partially coated by agglomeration, entrapped by absorption or extrusion, or treated by multiple steps of encapsulation, agglomeration, absorption, or extrusion. The coated sweetener is then co-dried and particle sized to produce a release-modified high-intensity sweetener. When incorporated into the chewing gum, these particles are adapted to enhance the shelf stability of the sweetener and/or produce a modified release when the gum is chewed.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: August 26, 2008
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Robert J. Yatka, Donald J. Townsend, Sonya S. Johnson, Michael J. Greenberg, Daniel J. Sitler
  • Patent number: 7087254
    Abstract: A method is provided for the manufacture of chewing gum on a continuous basis. The method uses a continuous high efficiency mixer which is configured for the total manufacture of a wide variety of chewing gum products and includes at least one ingredient feed opening that is enlarged.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: August 8, 2006
    Assignee: Wm. Wrigley Jr. Company
    Inventors: John T. Wolfe, Joo H. Song, Christafor E. Sundstrom, David W. Record, Donald J. Townsend, Kevin B. Broderick, Philip G. Schnell
  • Patent number: 6949264
    Abstract: A method for producing a chewing gum with a controlled release active agent, as well as the chewing gum so produced, is obtained by physically modifying the release properties of the active agent, such as a nutraceutical or nutritional supplement, by coating and drying. The active agent is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated active agent is preferably then co-dried and particle sized to produce a release-modified active agent for use in chewing gum. The active agent may also be used in a coating on a chewing gum product, as part of a rolling compound applied to the chewing gum product, or as a part of the liquid in a liquid-center chewing gum product.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: September 27, 2005
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Gordon N. McGrew, David G. Barkalow, Sonya S. Johnson, David W. Record, Mansukh M. Patel, Jack D. Nimz, Steven E. Zibell, Robert J. Yatka, Michael J. Greenberg, Rebecca A. Aumann, Daniel J. Zyck, Daniel J. Sitler, Jeffrey S. Hook, James R. Maxwell, Michael A. Reed, Victor V. Gudas, Philip G. Schnell, Henry T. Tyrpin, Michael P. Russell, David L. Witkewitz, Joo H. Song, Donald J. Townsend, Donald A. Seielstad, Ronald L. Ream, Christine L. Corriveau, William J. Wokas, Thomas M. Tongue
  • Patent number: 6858237
    Abstract: A method is provided for the total manufacture of chewing gum on a continuous basis. The method uses a continuous high efficiency mixer which includes at least one conveyor element that is not located under a feed port.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: February 22, 2005
    Assignee: Wm. Wrigley Jr. Company
    Inventors: John T. Wolfe, Joo H. Song, Christafor E. Sundstrom, David W. Record, Donald J. Townsend, Kevin B. Broderick, Philip G. Schnell
  • Patent number: 6811797
    Abstract: A method is provided for the total manufacture of chewing gum on a continuous basis. The method uses a blade and pin extruder that includes one or more hollow pins located at a distance from the shaft of the extruder that is at least 2.7% of the diameter of the barrel.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: November 2, 2004
    Assignee: Wm. Wrigley Jr. Company
    Inventors: John T. Wolfe, Joo H. Song, Christafor E. Sundstrom, David W. Record, Donald J. Townsend, Kevin B. Broderick, Philip G. Schnell
  • Publication number: 20040096544
    Abstract: The present invention includes a method for producing a chewing gum with a modified release sweetener selected from the group of N-substituted derivatives of aspartame, particularly neotame, as well as the chewing gum so produced. The modified release neotame or other N-substituted derivative of aspartame sweetener is obtained by physically modifying the sweetener properties by coating and drying. Neotame or another N-substituted derivative of aspartame sweetener is coated by encapsulation, partially coated by agglomeration, entrapped by absorption or extrusion, or treated by multiple steps of encapsulation, agglomeration, absorption, or extrusion. The coated sweetener is then co-dried and particle sized to produce a release-modified high-intensity sweetener. When incorporated into the chewing gum, these particles are adapted to enhance the shelf stability of the sweetener and/or produce a modified release when the gum is chewed.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 20, 2004
    Applicant: Wm. Wrigley Jr. Comapny.
    Inventors: Robert J. Yatka, Donald J. Townsend, Sonya S. Johnson, Michael J. Greenberg, Daniel J. Sitler
  • Patent number: 6692778
    Abstract: The present invention includes a method for producing a chewing gum with a modified release sweetener selected from the group of N-substituted derivatives of aspartame, particularly neotame, as well as the chewing gum so produced. The modified release neotame or other N-substituted derivative of aspartame sweetener is obtained by physically modifying the sweetener properties by coating and drying. Neotame or another N-substituted derivative of aspartame sweetener is coated by encapsulation, partially coated by agglomeration, entrapped by absorption or extrusion, or treated by multiple steps of encapsulation, agglomeration, absorption, or extrusion. The coated sweetener is then co-dried and particle sized to produce a release-modified high-intensity sweetener. When incorporated into the chewing gum, these particles are adapted to enhance the shelf stability of the sweetener and/or produce a modified release when the gum is chewed.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: February 17, 2004
    Assignee: WM. Wrigley Jr. Company
    Inventors: Robert J. Yatka, Donald J. Townsend, Sonya S. Johnson, Michael J. Greenberg, Daniel J. Sitler
  • Patent number: 6627234
    Abstract: A method for producing a chewing gum with an improved release of active agent, as well as the chewing gum so produced, is obtained by adding an active agent to a chewing gum coating. The active agent is added to the coating in a coating solution or premixed with a flavor or solvent. The coating solution may contain sweetener or other transdermal enhancing agents to obtain increased transmucosal absorption. An active agent may also be used in the gum core.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: September 30, 2003
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Sonya S. Johnson, David W. Record, Michael J. Greenberg, Michael A. Reed, Victor V. Gudas, Philip G. Schnell, Donald A. Seielstad, Henry T. Tyrpin, Michael P. Russell, David L. Witkewitz, Joo H. Song, Donald J. Townsend, Robert J. Yatka, Ronald L. Ream, Christine L. Corriveau, William J. Wokas
  • Patent number: 6586023
    Abstract: A method for producing a coated chewing gum with a controlled release of an active agent, as well as the chewing gum so produced, is obtained by physically modifying an active agent's properties by coating and drying. An active agent is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated active agent is then co-dried and particle sized to produce a release-modified active agent. When incorporated into a chewing gum coating, these particles release into the mouth but mask bitter and other off-tastes in the mouth, and are readily ingested.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: July 1, 2003
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Donald J. Townsend, David W. Record, Henry T. Tyrpin, Michael P. Russell, Philip G. Schnell, Ronald L. Ream, Christine L. Corriveau
  • Patent number: 6440472
    Abstract: A method is provided for the total manufacture of chewing gum on a continuous basis without requiring the separate manufacture of chewing gum base. The method uses a continuous high efficiency mixer which is configured for the total manufacture of a wide variety of chewing gum products and includes at least one large feed port that is not adjacent a conveyor element. By integrating the manufacture of chewing gum into a single operation, the method of the invention can save time and labor, and improve product consistency.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: August 27, 2002
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Christafor E. Sundstrom, David W. Record, Donald J. Townsend, Kevin B. Broderick, Philip G. Schnell
  • Patent number: 6428827
    Abstract: The present invention provides methods and compositions for improving the flavor duration in chewing gum. In a preferred form, the present invention provides matrix compositions comprising a hydroxypropylcellulose cross-linked with a multi-functional carboxylate to yield a matrix having a lower water solubility than the original cellulosic material. This matrix may be ground up, have a flavor incorporated therein and used in gum compositions in which it facilitates a prolonged release of the flavoring.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: August 6, 2002
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Donald J. Townsend, James R. Maxwell
  • Publication number: 20020064576
    Abstract: The present invention provides methods and compositions for improving the flavor duration in chewing gum. In a preferred form, the present invention provides matrix compositions comprising a hydroxypropylcellulose cross-linked with a multi-functional carboxylate to yield a matrix having a lower water solubility than the original cellulosic material. This matrix may be ground up, have a flavor incorporated therein and used in gum compositions in which it facilitates a prolonged release of the flavoring.
    Type: Application
    Filed: March 31, 2000
    Publication date: May 30, 2002
    Inventors: JOO H. SONG, DONALD J. TOWNSEND, JAMES R. MAXWELL
  • Publication number: 20020051836
    Abstract: The present invention includes a method for producing a chewing gum with a modified release sweetener selected from the group of N-substituted derivatives of aspartame, particularly neotame, as well as the chewing gum so produced. The modified release neotame or other N-substituted derivative of aspartame sweetener is obtained by physically modifying the sweetener properties by coating and drying. Neotame or another N-substituted derivative of aspartame sweetener is coated by encapsulation, partially coated by agglomeration, entrapped by absorption or extrusion, or treated by multiple steps of encapsulation, agglomeration, absorption, or extrusion. The coated sweetener is then co-dried and particle sized to produce a release-modified high-intensity sweetener. When incorporated into the chewing gum, these particles are adapted to enhance the shelf stability of the sweetener and/or produce a modified release when the gum is chewed.
    Type: Application
    Filed: December 5, 2000
    Publication date: May 2, 2002
    Inventors: Robert J. Yatka, Donald J. Townsend, Sonya S. Johnson, Michael J. Greenberg, Daniel J. Sitler
  • Patent number: 6086925
    Abstract: A process for continuously producing a chewing gum base comprises the steps of continuously adding a hard elastomer, a filler and lubricating agents into a continuous mixer, subjecting the elastomer, filler and lubricating agents to a dispersive mixing operation followed by a distributive mixing operation and continuously discharging the resulting chewing gum base from the mixer while the adding and mixing steps are in progress. The lubricating agents are introduced into the continuous mixer at a plurality of spatially separated feed inlets. Preferably part of the lubricating agents are introduced into the mixer with the hard elastomer and the filler prior to the dispersive mixing zone, and a portion of the lubricating agents are introduced into the mixer downstream of the dispersive mixing zone but prior to the distributive mixing zone. The lubricating agents may include elastomer solvents, soft elastomers, plastic polymers and softening agents such as fats, oils and waxes.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: July 11, 2000
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Donald J. Townsend
  • Patent number: 6030647
    Abstract: A method of producing chewing gum with a controlled flavor release comprises the steps of continuously adding chewing gum ingredients to a continuous mixer, the chewing gum ingredients comprising one or more flavoring agents, the continuous mixer comprising a plurality of spatially separated feed inlets through which the chewing gum ingredients are added to the mixer, and the one or more flavoring agents being added to the mixer simultaneously at two or more feed inlets; subjecting the chewing gum ingredients to a continuous mixing operation within the mixer, thereby forming a chewing gum composition; and continuously discharging the chewing gum composition from the mixer while chewing gum ingredients continue to be introduced and mixed within the mixer. The locations at which the flavor components are added controls the flavor characteristics of the chewing gum composition.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: February 29, 2000
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Christafor E. Sundstrom, David W. Record, Donald J. Townsend, Kevin B. Broderick, Philip G. Schnell
  • Patent number: 6004589
    Abstract: A process for continuously producing a chewing gum base having the steps of continuously adding a hard elastomer, a filler and lubricating agents into a continuous mixer, subjecting the elastomer, filler and lubricating agents to a dispersive mixing operation followed by a distributive mixing operation and continuously discharging the resulting chewing gum base from the mixer while the adding and mixing steps are in progress. The filler is introduced into the continuous mixer at a plurality of spatially separated feed inlets. Preferably part of the filler is introduced into the mixer prior to the dispersive mixing zone, and a portion of the filler is introduced into the mixer downstream of the dispersive mixing zone but prior to the distributive mixing zone.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: December 21, 1999
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Donald J. Townsend
  • Patent number: 5976581
    Abstract: A method of continuously producing a chewing gum composition comprises the steps of continuously adding fresh chewing gum ingredients into a continuous mixer; subjecting the fresh chewing gum ingredients to a continuous mixing operating within the mixer, thereby forming a chewing gum composition; continuously discharging the chewing gum composition from the continuous mixer while fresh chewing gum ingredients continue to be introduced and mixed within the mixer; and adding a portion of a previously produced chewing gum composition to the mixer and mixing the portion of previously produced chewing gum with the fresh chewing gum ingredients being continuously added to the mixer and mixed to form the chewing gum composition.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: November 2, 1999
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Christafor E. Sundstrom, David W. Record, Donald J. Townsend, Kevin B. Broderick, Philip G. Schnell
  • Patent number: 5908645
    Abstract: A method of making chewing gum includes the steps of a) preparing a gum base concentrate having a composition useful for preparing a variety of finished gum bases and chewing gums, and b) combining the gum base concentrate with remaining gum base ingredients, and other chewing gum ingredients, in a single efficient continuous mixer.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: June 1, 1999
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Donald J. Townsend, Joo H. Song, Kevin B. Broderick, Henry T. Tyrpin
  • Patent number: 5800847
    Abstract: A method is provided for the total manufacture of chewing gum on a continuous basis without requiring the separate manufacture of chewing gum base. The method uses a continuous high efficiency mixer which is configure for the total manufacture of a wide variety of chewing gum products. By intergrating the manufacture of chewing gum into a single operation, the method of the invention can save time and labor, and improve product consistency.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: September 1, 1998
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Christafor E. Sundstrom, David W. Record, Donald J. Townsend, Kevin B. Broderick, Philip G. Schnell
  • Patent number: 5773053
    Abstract: A process for continuously producing a chewing gum base comprises the steps of continuously adding a hard elastomer, a filler and lubricating agents comprising a softening agent into a continuous mixer, subjecting the elastomer, filler and lubricating agents to a dispersive mixing operation and continuously discharging the resulting chewing gum base from the mixer while the adding and mixing steps are in progress. The softening agent is introduced into the continuous mixer at a plurality of spatially separated feed inlets. The softening agent is selected from the group consisting of fats, oils, waxes, emulsifiers and mixtures thereof.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: June 30, 1998
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Joo H. Song, Donald J. Townsend