Patents by Inventor Wyatt Price Hargett, Jr.

Wyatt Price Hargett, Jr. 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: 8852533
    Abstract: A controlled release and self-resealing vessel assembly for high pressure microwave assisted chemistry is disclosed. The vessel assembly includes a microwave-transparent, heat expandable reaction vessel having at least two cylindrical portions axially adjacent one another, with one of the portions having a diameter larger than the diameter of the other portion. A transition portion is between the two cylindrical portions, the vessel mouth is in the larger-diameter portion, and a cylindrical retaining sleeve surrounds the vessel.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: October 7, 2014
    Assignee: CEM Corporation
    Inventor: Wyatt Price Hargett, Jr.
  • Patent number: 8795608
    Abstract: A controlled release and self-resealing vessel assembly for high pressure, microwave assisted chemistry is disclosed. The vessel assembly includes a cylindrical reaction vessel formed of a material that is substantially transparent to microwave radiation. The vessel has angular walls, one closed end for retaining reactants in the lower portions of the vessel, and one open end that defines a mouth for the vessel. The mouth of the cylinder vessel has a lip that is beveled inwardly from the open end. A microwave-transparent solid floating plug closes the mouth of the reaction vessel; with the plug have a frustum portion for engaging the beveled lip when the plug is placed in the mouth of the vessel. A lid exerts a defined axial force against the plug for sealing the plug in the open end of the cylinder with the frustum engaging the lip.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: August 5, 2014
    Assignee: CEM Corporation
    Inventor: Wyatt Price Hargett, Jr.
  • Publication number: 20130302220
    Abstract: A controlled release and self-resealing vessel assembly for high pressure microwave assisted chemistry is disclosed. The vessel assembly includes a microwave-transparent, heat expandable reaction vessel having at least two cylindrical portions axially adjacent one another, with one of the portions having a diameter larger than the diameter of the other portion. A transition portion is between the two cylindrical portions, the vessel mouth is in the larger-diameter portion, and a cylindrical retaining sleeve surrounds the vessel.
    Type: Application
    Filed: June 11, 2013
    Publication date: November 14, 2013
    Inventor: Wyatt Price Hargett, Jr.
  • Patent number: 8480981
    Abstract: A controlled release and self-resealing pressure-maintaining lid for reaction vessels in microwave assisted chemistry is disclosed. The lid includes a rigid perimeter, a rigid center load-bearing portion, and a flexible portion connecting the rigid perimeter to the center load-bearing portion so that the center portion can move when said flexing portion flexes. The lid can be used in conjunction with a vessel assembly. The vessel assembly can include a microwave-transparent, heat expandable reaction vessel having at least two cylindrical portions axially adjacent one another with one of the portions having a diameter larger than the diameter of the other portion, a transition portion between the two cylindrical portions, a vessel mouth in the larger-diameter portion, and a cylindrical retaining sleeve around the vessel.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: July 9, 2013
    Assignee: CEM Corporation
    Inventor: Wyatt Price Hargett, Jr.
  • Publication number: 20110300036
    Abstract: A controlled release and self-resealing vessel assembly for high pressure, microwave assisted chemistry is disclosed. The vessel assembly includes a cylindrical reaction vessel formed of a material that is substantially transparent to microwave radiation. The vessel has angular walls, one closed end for retaining reactants in the lower portions of the vessel, and one open end that defines a mouth for the vessel. The mouth of the cylinder vessel has a lip that is beveled inwardly from the open end. A microwave-transparent solid floating plug closes the mouth of the reaction vessel; with the plug have a frustum portion for engaging the beveled lip when the plug is placed in the mouth of the vessel. A lid exerts a defined axial force against the plug for sealing the plug in the open end of the cylinder with the frustum engaging the lip.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 8, 2011
    Applicant: CEM CORPORATION
    Inventor: Wyatt Price Hargett, JR.
  • Publication number: 20110293491
    Abstract: A controlled release and self-resealing pressure-maintaining lid for reaction vessels in microwave assisted chemistry is disclosed. The lid includes a rigid perimeter, a rigid center load-bearing portion, and a flexible portion connecting the rigid perimeter to the center load-bearing portion so that the center portion can move when said flexing portion flexes. The lid can be used in conjunction with a vessel assembly. The vessel assembly can include a microwave-transparent, heat expandable reaction vessel having at least two cylindrical portions axially adjacent one another with one of the portions having a diameter larger than the diameter of the other portion, a transition portion between the two cylindrical portions, a vessel mouth in the larger-diameter portion, and a cylindrical retaining sleeve around the vessel.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Applicant: CEM CORPORATION
    Inventor: Wyatt Price Hargett, JR.
  • Patent number: 7812291
    Abstract: An instrument and associated method are disclosed for preparing samples for column chromatography.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: October 12, 2010
    Assignee: CEM Corporation
    Inventors: Michael John Collins, Sr., Wyatt Price Hargett, Jr., James Edward Thomas, Michael John Collins, Jr., E. Keller Barnhardt
  • Publication number: 20100044368
    Abstract: The invention is a method and associated instrument for microwave assisted chemistry. The invention includes the steps of directing a continuous flow of fluid through a microwave cavity while applying microwave radiation to the cavity and to the continuous flow of materials therein, monitoring the pressure of the fluid in the cavity; and cooling the fluid in the cavity when the pressure exceeds a predetermined setpoint pressure.
    Type: Application
    Filed: September 14, 2009
    Publication date: February 25, 2010
    Inventors: Michael John Collins, Michael John Collins, JR., Wyatt Price Hargett, JR., Edward Earl King, Gary Wilbert Busse
  • Patent number: 7348526
    Abstract: An instrument and associated method are disclosed for preparing samples for column chromatography.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: March 25, 2008
    Assignee: CEM Corporation
    Inventors: Michael John Collins, Sr., Wyatt Price Hargett, Jr., James Edward Thomas, Michael John Collins, Jr., E. Keller Barnhardt
  • Patent number: 7214913
    Abstract: A controlled-flow microwave instrument for chemical synthesis using heterogeneous or highly viscous starting materials includes a microwave source for generating electromagnetic radiation in the microwave frequencies, a microwave cavity in wave communication with the source for exposing compositions placed therein to microwave radiation, a microwave-transparent pressure resistant reaction vessel in the cavity, a source reservoir for starting materials and related compositions, a pump in communication with the source reservoir for pumping heterogeneous or highly viscous materials from the source reservoir to the reaction vessel, and a pressure-resistant valve between the pump and the reaction vessel for isolating the reaction vessel from the pump and the source reservoir during application of microwave energy to compositions in the vessel and from any resulting high pressures generated therein.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: May 8, 2007
    Assignee: CEM, Corporation
    Inventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
  • Patent number: 7208709
    Abstract: A pressure-measuring vessel system for microwave assisted chemical processes is disclosed. The vessel system includes a pressure resistant vessel that is otherwise transparent to microwave radiation, a pressure-resistant closure for the mouth of the vessel, with portions of the closure including a pressure resistant synthetic membrane, a pressure transducer external to the vessel, and a tube extending from the transducer, through the membrane and into the vessel for permitting the pressure inside the vessel to be applied against the transducer while the closure and membrane otherwise maintain the pressure resistant characteristics of the vessel.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: April 24, 2007
    Assignee: CEM Corporation
    Inventors: William Edward Jennings, Wyatt Price Hargett, Jr., James Edward Thomas
  • Patent number: 7109452
    Abstract: A controlled-flow microwave instrument for chemical synthesis that includes heterogeneous or highly viscous materials includes a fluid reservoir for supplying or receiving fluids, a fluid pump in fluid communication with the reservoir for pumping fluids to or from the reservoir, a microwave transparent reaction vessel in fluid communication with the pump for supplying or receiving fluids to or from the pump and the reservoir, a pressure sensor in fluid communication with the reservoir and the vessel for measuring the pressure of fluids in the instrument at the sensor, and a processor in signal communication with the pressure sensor and the pump for controlling the pump and the flow of fluids in the instrument based at least in part on the pressure measured at the sensor.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: September 19, 2006
    Assignee: CEM Corporation
    Inventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
  • Patent number: 7041947
    Abstract: A controlled-flow microwave instrument for chemical synthesis that includes heterogeneous or highly viscous materials. Includes a fluid reservoir for supplying or receiving fluids, a fluid pump in fluid communication with the reservoir for pumping fluids to or from the reservoir, a microwave transparent reaction vessel in fluid communication with the pump for supplying or receiving fluids to or from the pump and the reservoir, a pressure sensor in fluid communication with the reservoir and the vessel for measuring the pressure of fluids in the instrument at the sensor, and a processor in signal communication with the pressure sensor and the pump for controlling the pump and the flow of fluids in the instrument based at least in part on the pressure measured at the sensor.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: May 9, 2006
    Assignee: CEM Corporation
    Inventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
  • Patent number: 6989519
    Abstract: A controlled-flow microwave instrument for chemical synthesis using heterogeneous or highly viscous starting materials includes a microwave source for generating electromagnetic radiation in the microwave frequencies, a microwave cavity in wave communication with the source for exposing compositions placed therein to microwave radiation, a microwave-transparent pressure resistant reaction vessel in the cavity, a source reservoir for starting materials and related compositions, a pump in communication with the source reservoir for pumping heterogeneous or highly viscous materials from the source reservoir to the reaction vessel, and a pressure-resistant valve between the pump and the reaction vessel for isolating the reaction vessel from the pump and the source reservoir during application of microwave energy to compositions in the vessel and from any resulting high pressures generated therein.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: January 24, 2006
    Assignee: CEM Corporation
    Inventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
  • Patent number: 6966226
    Abstract: A pressure-measuring vessel system for microwave assisted chemical processes is disclosed. The vessel system includes a pressure resistant vessel that is otherwise transparent to microwave radiation, a pressure-resistant closure for the mouth of the vessel, with portions of the closure including a pressure resistant synthetic membrane, a pressure transducer external to the vessel, and a tube extending from the transducer, through the membrane and into the vessel for permitting the pressure inside the vessel to be applied against the transducer while the closure and membrane otherwise maintain the pressure resistant characteristics of the vessel.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: November 22, 2005
    Assignee: CEM Corporation
    Inventors: William Edward Jennings, Wyatt Price Hargett, Jr., James Edward Thomas
  • Patent number: 6926939
    Abstract: A self sealing vessel assembly for high pressure microwave assisted chemistry is disclosed. The vessel assembly includes a polymeric cylinder and a circular polymeric cap for the cylinder, the cylinder being closed at one end and open at the other end to receive the cap. The open end of the cylinder has a lip that is beveled inwardly from the open end, and the circular polymeric cap has a beveled lower edge that engages the beveled lip when the cap is place upon the polymericcylinder. For high pressure applications, a choke cylinder depends from the beveled lower edge of the cap, and has an outer diameter substantially the same as the inner diameter of the polymeric cylinder so that the choke provides a self sealing mechanism for the cylinder as pressure from a chemical reaction increases within the cylinder. A composite sleeve surrounds the polymeric cylinder, and includes at least one wound fabric layer in which the winding is selected from the group consisting of filaments and yarns.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: August 9, 2005
    Assignee: CEM Corporation
    Inventors: Wyatt Price Hargett, Jr., Edward Earl King
  • Patent number: 6927371
    Abstract: The vessel assembly includes a polymeric cylinder and a circular polymeric cap for the cylinder, the cylinder being closed at one end and open at the other end to receive the cap. The open end of the cylinder has a lip that is beveled inwardly from the open end, and the circular polymeric cap has a beveled lower edge that engages the beveled lip when the cap is place upon the polymeric cylinder. For high pressure applications, a choke cylinder depends from the beveled lower edge of the cap, and has an outer diameter substantially the same as the inner diameter of the polymeric cylinder so that the choke provides a self sealing mechanism for the cylinder as pressure from a chemical reaction increases within the cylinder. A composite sleeve surrounds the polymeric cylinder, and includes at least one wound fabric layer in which the winding can be a filament or a yarn.
    Type: Grant
    Filed: September 23, 2000
    Date of Patent: August 9, 2005
    Assignee: CEM, Inc.
    Inventors: Wyatt Price Hargett, Jr., Edward Earl King
  • Patent number: 6886408
    Abstract: A pressure-measuring vessel system for microwave assisted chemical processes is disclosed. The vessel system includes a pressure resistant vessel that is otherwise transparent to microwave radiation, a pressure-resistant closure for the mouth of the vessel, with portions of the closure including a pressure resistant synthetic membrane, a pressure transducer external to the vessel, and a tube extending from the transducer, through the membrane and into the vessel for permitting the pressure inside the vessel to be applied against the transducer while the closure and membrane otherwise maintain the pressure resistant characteristics of the vessel.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: May 3, 2005
    Assignee: CEM Corporation
    Inventors: William Edward Jennings, Wyatt Price Hargett, Jr., James Edward Thomas
  • Patent number: 6867400
    Abstract: The invention is a method and associated instrument for microwave assisted chemistry. The invention includes the steps of directing a continuous flow of fluid through a microwave cavity while applying microwave radiation to the cavity and to the continuous flow of materials therein, monitoring the pressure of the fluid in the cavity; and cooling the fluid in the cavity when the pressure exceeds a predetermined setpoint pressure.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: March 15, 2005
    Assignee: CEM Corporation
    Inventors: Michael John Collins, Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Gary Wilbert Busse
  • Patent number: 6863871
    Abstract: A dynamic sealing structure for pressure vessels used in microwave assisted chemistry is disclosed. The structure includes a cylindrical vessel liner and a removable liner cap, each formed of a microwave transparent material. The liner has a circular mouth with a lip formed of respective first and second beveled edges, with the first beveled edge forming an interior edge of the circular mouth and the second beveled edge forming an exterior edge of the circular mouth. The cap includes respective interior and exterior faces, with a sleeve depending from the interior face and having a circumference that engages the interior surface of the vessel liner for being urged under pressure against the interior surface of the vessel liner. The interior face of the cap comprising a circular channel outward of the sleeve and having a circumference that engages the lip of the vessel liner, and with the channel comprising two beveled edges that respectively engage both beveled edges of the lip of the liner.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 8, 2005
    Assignee: CEM Corporation
    Inventor: Wyatt Price Hargett, Jr.