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).
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Patent number: 8852533Abstract: 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: GrantFiled: June 11, 2013Date of Patent: October 7, 2014Assignee: CEM CorporationInventor: Wyatt Price Hargett, Jr.
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Patent number: 8795608Abstract: 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: GrantFiled: August 8, 2011Date of Patent: August 5, 2014Assignee: CEM CorporationInventor: Wyatt Price Hargett, Jr.
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Publication number: 20130302220Abstract: 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: ApplicationFiled: June 11, 2013Publication date: November 14, 2013Inventor: Wyatt Price Hargett, Jr.
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Patent number: 8480981Abstract: 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: GrantFiled: August 8, 2011Date of Patent: July 9, 2013Assignee: CEM CorporationInventor: Wyatt Price Hargett, Jr.
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Publication number: 20110300036Abstract: 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: ApplicationFiled: August 8, 2011Publication date: December 8, 2011Applicant: CEM CORPORATIONInventor: Wyatt Price Hargett, JR.
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Publication number: 20110293491Abstract: 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: ApplicationFiled: August 8, 2011Publication date: December 1, 2011Applicant: CEM CORPORATIONInventor: Wyatt Price Hargett, JR.
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Patent number: 7812291Abstract: An instrument and associated method are disclosed for preparing samples for column chromatography.Type: GrantFiled: July 12, 2006Date of Patent: October 12, 2010Assignee: CEM CorporationInventors: Michael John Collins, Sr., Wyatt Price Hargett, Jr., James Edward Thomas, Michael John Collins, Jr., E. Keller Barnhardt
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Publication number: 20100044368Abstract: 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: ApplicationFiled: September 14, 2009Publication date: February 25, 2010Inventors: Michael John Collins, Michael John Collins, JR., Wyatt Price Hargett, JR., Edward Earl King, Gary Wilbert Busse
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Patent number: 7348526Abstract: An instrument and associated method are disclosed for preparing samples for column chromatography.Type: GrantFiled: August 20, 2004Date of Patent: March 25, 2008Assignee: CEM CorporationInventors: Michael John Collins, Sr., Wyatt Price Hargett, Jr., James Edward Thomas, Michael John Collins, Jr., E. Keller Barnhardt
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Patent number: 7214913Abstract: 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: GrantFiled: June 13, 2005Date of Patent: May 8, 2007Assignee: CEM, CorporationInventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
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Patent number: 7208709Abstract: 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: GrantFiled: May 12, 2005Date of Patent: April 24, 2007Assignee: CEM CorporationInventors: William Edward Jennings, Wyatt Price Hargett, Jr., James Edward Thomas
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Patent number: 7109452Abstract: 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: GrantFiled: September 16, 2005Date of Patent: September 19, 2006Assignee: CEM CorporationInventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
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Patent number: 7041947Abstract: 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: GrantFiled: April 9, 2004Date of Patent: May 9, 2006Assignee: CEM CorporationInventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
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Patent number: 6989519Abstract: 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: GrantFiled: September 2, 2003Date of Patent: January 24, 2006Assignee: CEM CorporationInventors: Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Joseph Joshua Lambert, James Edward Thomas
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Patent number: 6966226Abstract: 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: GrantFiled: June 8, 2004Date of Patent: November 22, 2005Assignee: CEM CorporationInventors: William Edward Jennings, Wyatt Price Hargett, Jr., James Edward Thomas
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Patent number: 6926939Abstract: 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: GrantFiled: August 9, 2002Date of Patent: August 9, 2005Assignee: CEM CorporationInventors: Wyatt Price Hargett, Jr., Edward Earl King
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Patent number: 6927371Abstract: 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: GrantFiled: September 23, 2000Date of Patent: August 9, 2005Assignee: CEM, Inc.Inventors: Wyatt Price Hargett, Jr., Edward Earl King
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Patent number: 6886408Abstract: 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: GrantFiled: January 31, 2001Date of Patent: May 3, 2005Assignee: CEM CorporationInventors: William Edward Jennings, Wyatt Price Hargett, Jr., James Edward Thomas
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Patent number: 6867400Abstract: 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: GrantFiled: July 31, 2002Date of Patent: March 15, 2005Assignee: CEM CorporationInventors: Michael John Collins, Michael John Collins, Jr., Wyatt Price Hargett, Jr., Edward Earl King, Gary Wilbert Busse
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Patent number: 6863871Abstract: 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: GrantFiled: May 16, 2001Date of Patent: March 8, 2005Assignee: CEM CorporationInventor: Wyatt Price Hargett, Jr.