Patents by Inventor David A. Brunson

David A. Brunson 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: 10150241
    Abstract: A generally hollow preform for making a stretch blow-molded container may include a threaded finish portion; a neck portion depending from the finish portion; a transition portion depending from the neck portion; a main portion depending from the transition portion; and a closed, generally rounded tip portion depending from the main portion. The preform may include stretch ratios with respect to the container including an axial stretch ratio of about 3.0 to 3.5, a hoop stretch ratio of about 5.0 to 5.5, and a total stretch ratio of about 15 to 19.25. In some embodiments, high stretch ratios may be achieved with less material, yielding substantial cost savings.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: December 11, 2018
    Assignee: DR PEPPER/SEVEN UP, INC.
    Inventors: Brandon W. Knight, Patrick T. George, David A. Brunson
  • Publication number: 20180071968
    Abstract: A generally hollow preform for making a stretch blow-molded container may include a threaded finish portion; a neck portion depending from the finish portion; a transition portion depending from the neck portion; a main portion depending from the transition portion; and a closed, generally rounded tip portion depending from the main portion. The preform may include stretch ratios with respect to the container including an axial stretch ratio of about 3.0 to 3.5, a hoop stretch ratio of about 5.0 to 5.5, and a total stretch ratio of about 15 to 19.25. In some embodiments, high stretch ratios may be achieved with less material, yielding substantial cost savings.
    Type: Application
    Filed: November 20, 2017
    Publication date: March 15, 2018
    Inventors: Brandon W. Knight, Patrick T. George, David A. Brunson
  • Patent number: 9821505
    Abstract: A generally hollow preform for making a stretch blow-molded container may include a threaded finish portion; a neck portion depending from the finish portion; a transition portion depending from the neck portion; a main portion depending from the transition portion; and a closed, generally rounded tip portion depending from the main portion. The preform may include stretch ratios with respect to the container including an axial stretch ratio of about 3.0 to 3.5, a hoop stretch ratio of about 5.0 to 5.5, and a total stretch ratio of about 15 to 19.25. In some embodiments, high stretch ratios may be achieved with less material, yielding substantial cost savings.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: November 21, 2017
    Assignee: DR PEPPER/SEVEN UP, INC.
    Inventors: Brandon W. Knight, Patrick T. George, David A. Brunson
  • Publication number: 20160250795
    Abstract: A generally hollow preform for making a stretch blow-molded container may include a threaded finish portion; a neck portion depending from the finish portion; a transition portion depending from the neck portion; a main portion depending from the transition portion; and a closed, generally rounded tip portion depending from the main portion. The preform may include stretch ratios with respect to the container including an axial stretch ratio of about 3.0 to 3.5, a hoop stretch ratio of about 5.0 to 5.5, and a total stretch ratio of about 15 to 19.25. In some embodiments, high stretch ratios may be achieved with less material, yielding substantial cost savings.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 1, 2016
    Inventors: Brandon W. Knight, Patrick T. George, David A. Brunson
  • Patent number: 9352492
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having upper and lower die sets and a plurality of upper and lower mold half blocks each attached to a respective die set. Each of the upper mold half blocks has a corresponding lower mold half block with which it cooperatively defines one or more cavities for forming the exterior shape of the body of one or more of the parisons. The individual, independent attachment of the mold half blocks to the die sets allows easy individual replacement of faulty or worn mold blocks. Further, such an independent attachment configuration also permits the mold half blocks of each die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the mold half blocks.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: May 31, 2016
    Assignee: R&D Tool & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson, Brian R. Lefebure, James R. Baldwin
  • Publication number: 20150343670
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having upper and lower die sets and a plurality of upper and lower mold half blocks each attached to a respective die set. Each of the upper mold half blocks has a corresponding lower mold half block with which it cooperatively defines one or more cavities for forming the exterior shape of the body of one or more of the parisons. The individual, independent attachment of the mold half blocks to the die sets allows easy individual replacement of faulty or worn mold blocks. Further, such an independent attachment configuration also permits the mold half blocks of each die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the mold half blocks.
    Type: Application
    Filed: August 7, 2015
    Publication date: December 3, 2015
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson, Brian R. Lefebure, James R. Baldwin
  • Patent number: 9132581
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having upper and lower die sets and a plurality of upper and lower mold half blocks each attached to a respective die set. Each of the upper mold half blocks has a corresponding lower mold half block with which it cooperatively defines one or more cavities for forming the exterior shape of the body of one or more of the parisons. The individual, independent attachment of the mold half blocks to the die sets allows easy individual replacement of faulty or worn mold blocks. Further, such an independent attachment configuration also permits the mold half blocks of each die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the mold half blocks.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: September 15, 2015
    Assignee: R&D Tools & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson, Brian R. Lefebure, James R. Baldwin
  • Patent number: 8877117
    Abstract: An injection blow molding (IBM) system and method for consistently maintaining the surface temperature of the parison molds within a desired range. Implementation of this system/method can result in more consistent production of higher quality parisons and molded articles. Additionally, this system/method reduces the discretion required by the IBM operator and shifts the burden of consistently making high-quality parisons and molded articles onto the designer of the IBM tooling.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: November 4, 2014
    Assignee: R&D Tool & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Publication number: 20140042673
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having upper and lower die sets and a plurality of upper and lower mold half blocks each attached to a respective die set. Each of the upper mold half blocks has a corresponding lower mold half block with which it cooperatively defines one or more cavities for forming the exterior shape of the body of one or more of the parisons. The individual, independent attachment of the mold half blocks to the die sets allows easy individual replacement of faulty or worn mold blocks. Further, such an independent attachment configuration also permits the mold half blocks of each die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the mold half blocks.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 13, 2014
    Applicant: R&D Tool & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson, Brian R. Lefebure, James R. Baldwin
  • Patent number: 8562334
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets, two body mold halves, and two neck mold halves. Each of the neck mold halves is attached directly to one of the die sets. The neck mold halves are configured to cooperatively form the exterior shape of the necks of one or more parisons. This type of neck mold attachment configuration can allow for better temperature control of the neck portion of the parison being molded therein. Further, such a neck mold configuration can reduce the cost of fabricating, installing, and/or replacing the neck molds.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: October 22, 2013
    Assignee: R&D Tool & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Patent number: 8523556
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets and a plurality of first and second body mold halves each attached to a respective die set. Each of the first body mold halves has a corresponding second body mold half with which it cooperatively defines a cavity for forming the exterior shape of the body of one of the parisons. The individual, independent attachment of the body mold halves to the die sets allows easy individual replacement of faulty or worn molds. Further, such an attachment configuration also permits the body mold halves connected to a common die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the body mold halves.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: September 3, 2013
    Assignee: R&D Tool & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Patent number: 8512028
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets and two mold half assemblies. Each of the mold assemblies is attached to one of the die sets. The mold half assemblies are configured to cooperatively form the exterior shape of the necks of a plurality of parisons. Heat transfer channels formed in both the die sets and the mold half assemblies are fluidly connected with each other, such that a heat transfer fluid can be routed to the mold half assemblies via the die sets.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: August 20, 2013
    Assignee: R&D Tool & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Patent number: 8512625
    Abstract: An injection blow molding (IBM) system and method for controlling the surface temperature of the parison molds by passing heat transfer fluid through a plurality of fluidly-coupled heat transfer channels. The heat transfer channels can be formed primarily in die sets to which the parison molds are attached. The placement and distribution of the heat transfer channels relative to the parison-forming surfaces helps control the temperatures of the bodies and necks of the parisons being formed, instead of relying on various adjustments by an IBM operator. This system/method reduces the discretion required by the IBM operator and shifts the burden of consistently making high-quality parisons and molded articles onto the designer of the IBM tooling.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: August 20, 2013
    Assignee: R&D Tool & Engineering Co.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Publication number: 20120128812
    Abstract: An injection blow molding (IBM) system and method for controlling the surface temperature of the parison molds by passing heat transfer fluid through a plurality of fluidly-coupled heat transfer channels. The heat transfer channels can be formed primarily in die sets to which the parison molds are attached. The placement and distribution of the heat transfer channels relative to the parison-forming surfaces helps control the temperatures of the bodies and necks of the parisons being formed, instead of relying on various adjustments by an IBM operator. This system/method reduces the discretion required by the IBM operator and shifts the burden of consistently making high-quality parisons and molded articles onto the designer of the IBM tooling.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 24, 2012
    Applicant: R&D TOOL & ENGINEERING CO.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Publication number: 20120126463
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets and a plurality of first and second body mold halves each attached to a respective die set. Each of the first body mold halves has a corresponding second body mold half with which it cooperatively defines a cavity for forming the exterior shape of the body of one of the parisons. The individual, independent attachment of the body mold halves to the die sets allows easy individual replacement of faulty or worn molds. Further, such an attachment configuration also permits the body mold halves connected to a common die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the body mold halves.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 24, 2012
    Applicant: R&D TOOL & ENGINEERING CO.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Publication number: 20120126464
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets, two body mold halves, and two neck mold halves. Each of the neck mold halves is attached directly to one of the die sets. The neck mold halves are configured to cooperatively form the exterior shape of the necks of one or more parisons. This type of neck mold attachment configuration can allow for better temperature control of the neck portion of the parison being molded therein. Further, such a neck mold configuration can reduce the cost of fabricating, installing, and/or replacing the neck molds.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 24, 2012
    Applicant: R&D TOOL & ENGINEERING CO.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Publication number: 20120126465
    Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets and two mold half assemblies. Each of the mold assemblies is attached to one of the die sets. The mold half assemblies are configured to cooperatively form the exterior shape of the necks of a plurality of parisons. Heat transfer channels formed in both the die sets and the mold half assemblies are fluidly connected with each other, such that a heat transfer fluid can be routed to the mold half assemblies via the die sets.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 24, 2012
    Applicant: R&D TOOL & ENGINEERING CO.
    Inventors: Randal L. Fields, Bruce A. Wardlow, David A. Brunson
  • Patent number: D663214
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: July 10, 2012
    Assignee: Dr Pepper/Seven Up, Inc.
    Inventors: Patrick T. George, Paul E. Skelton, David A. Brunson, John Anthony Naoum Jirgi
  • Patent number: D668958
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: October 16, 2012
    Inventors: Patrick T. George, Paul E. Skelton, David A. Brunson, John Anthony Naoum Jirgi
  • Patent number: D754002
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 19, 2016
    Assignee: DR PEPPER/SEVEN UP, INC.
    Inventors: Brandon Knight, Patrick George, Paul E. Skelton, David A. Brunson, John Anthony Naoum Jirgi