Patents by Inventor David Peter Gerrard
David Peter Gerrard 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: 11536369Abstract: A gasket having concentric or spiral serrations around the aperture on each side of the gasket, and wherein a facing is secured to such serrations, wherein each facing comprises a first layer which is in contact with a respective set of such serrations and a second layer which is in contact with the first layer. The first layer could be of a polyaryletherketone or polyimide, and the second layer could be of graphite or vermiculite. The serrations are designed to avoid damage to the first layer. An intact first layer can supply a property to the facing which may be absent in the second layer; for example, good dielectric properties.Type: GrantFiled: August 12, 2016Date of Patent: December 27, 2022Assignee: Flexitallic Investments, Inc.Inventors: Stephen Peter Bond, Stuart John Shaw, David Peter Gerrard
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Patent number: 10497849Abstract: A thermoelectric composite includes a plurality of particles comprising a crosslinked polymer having a heat deflection temperature greater than or equal to 200° F. and a segregated network comprising a first filler material which is disposed between the particles to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the thermoelectric composite. The first filler material includes a carbon material, a metal, a metal disposed on a carbon material, or a combination thereof. A process for preparing a thermoelectric article includes combining a first filler material and a plurality of particles comprising a polymer to form a composition and molding the composition to form a thermoelectric article, wherein the thermoelectric article is configured to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the article.Type: GrantFiled: January 31, 2017Date of Patent: December 3, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Sayantan Roy, David Peter Gerrard, Oleksandr V. Kuznetsov
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Publication number: 20180245693Abstract: A gasket having concentric or spiral serrations around the aperture on each side of the gasket, and wherein a facing is secured to such serrations, wherein each facing comprises a first layer which is in contact with a respective set of such serrations and a second layer which is in contact with the first layer. The first layer could be of a polyaryletherketone or polyimide, and the second layer could be of graphite or vermiculite. The serrations are designed to avoid damage to the first layer.Type: ApplicationFiled: August 12, 2016Publication date: August 30, 2018Inventors: Stephen Peter Bond, Stuart John Shaw, David Peter Gerrard
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Patent number: 9707642Abstract: Disclosed herein is a solder composition comprising a metal or a metal alloy; and an electrically conductive high temperature polymeric composition; where the electrically conductive high temperature polymeric composition is dispersed homogeneously in the metal; and where the electrically conductive high temperature polymeric composition has a higher glass transition temperature or a melting point than the flow temperature of the metal or metal alloy. Disclosed herein too is a method comprising mixing an electrically conductive high temperature polymeric composition with a metal or a metal alloy to form the solder composition; where the electrically conductive high temperature polymeric composition is dispersed homogeneously in the metal; and where the electrically conductive high temperature polymeric composition has a higher glass transition temperature or a melting point than the flow temperature of the metal or metal alloy.Type: GrantFiled: November 5, 2013Date of Patent: July 18, 2017Assignee: BAKER HUGHES INCORPORATEDInventors: David Peter Gerrard, Sayantan Roy
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Publication number: 20170141283Abstract: A thermoelectric composite includes a plurality of particles comprising a crosslinked polymer having a heat deflection temperature greater than or equal to 200° F. and a segregated network comprising a first filler material which is disposed between the particles to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the thermoelectric composite. The first filler material includes a carbon material, a metal, a metal disposed on a carbon material, or a combination thereof. A process for preparing a thermoelectric article includes combining a first filler material and a plurality of particles comprising a polymer to form a composition and molding the composition to form a thermoelectric article, wherein the thermoelectric article is configured to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the article.Type: ApplicationFiled: January 31, 2017Publication date: May 18, 2017Applicant: Baker Hughes IncorporatedInventors: Sayantan Roy, David Peter Gerrard, Oleksandr V. Kuznetsov
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Patent number: 9595654Abstract: A thermoelectric composite includes a plurality of particles comprising a crosslinked polymer having a heat deflection temperature greater than or equal to 200° F. and a segregated network comprising a first filler material which is disposed between the particles to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the thermoelectric composite. The first filler material includes a carbon material, a metal, a metal disposed on a carbon material, or a combination thereof. A process for preparing a thermoelectric article includes combining a first filler material and a plurality of particles comprising a polymer to form a composition and molding the composition to form a thermoelectric article, wherein the thermoelectric article is configured to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the article.Type: GrantFiled: May 21, 2013Date of Patent: March 14, 2017Assignee: BAKER HUGHES INCORPORATEDInventors: Sayantan Roy, David Peter Gerrard, Oleksandr V. Kuznetsov
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Patent number: 9206665Abstract: Disclosed herein is a seal element comprising a seal coating. The seal element comprises a substrate, and a seal coating disposed on a surface of the substrate, wherein the seal coating comprises a layer of a nanoparticle material.Type: GrantFiled: July 28, 2008Date of Patent: December 8, 2015Assignee: Baker Hughes IncorporatedInventor: David Peter Gerrard
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Patent number: 9120898Abstract: A method of preparing a cured thermoplastic material includes curing a thermoplastic polymer having a thermal decomposition temperature greater than or equal to about 200° C., at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. A method of making a shape memory material also includes curing a thermoplastic polymer to prepare a cured thermoplastic material.Type: GrantFiled: July 8, 2011Date of Patent: September 1, 2015Assignee: Baker Hughes IncorporatedInventors: Jiaxiang Ren, David Peter Gerrard, James Edward Goodson, Ping Duan, Lillian Guo
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Publication number: 20140345661Abstract: A thermoelectric composite includes a plurality of particles comprising a crosslinked polymer having a heat deflection temperature greater than or equal to 200° F. and a segregated network comprising a first filler material which is disposed between the particles to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the thermoelectric composite. The first filler material includes a carbon material, a metal, a metal disposed on a carbon material, or a combination thereof. A process for preparing a thermoelectric article includes combining a first filler material and a plurality of particles comprising a polymer to form a composition and molding the composition to form a thermoelectric article, wherein the thermoelectric article is configured to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the article.Type: ApplicationFiled: May 21, 2013Publication date: November 27, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: Sayantan Roy, David Peter Gerrard, Oleksandr V. Kuznetsov
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Publication number: 20140158255Abstract: Disclosed herein is a solder composition comprising a metal or a metal alloy; and an electrically conductive high temperature polymeric composition; where the electrically conductive high temperature polymeric composition is dispersed homogeneously in the metal; and where the electrically conductive high temperature polymeric composition has a higher glass transition temperature or a melting point than the flow temperature of the metal or metal alloy. Disclosed herein too is a method comprising mixing an electrically conductive high temperature polymeric composition with a metal or a metal alloy to form the solder composition; where the electrically conductive high temperature polymeric composition is dispersed homogeneously in the metal; and where the electrically conductive high temperature polymeric composition has a higher glass transition temperature or a melting point than the flow temperature of the metal or metal alloy.Type: ApplicationFiled: November 5, 2013Publication date: June 12, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: David Peter Gerrard, Sayantan Roy
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Patent number: 8736267Abstract: A method and apparatus for measuring a parameter of an object is disclosed. The object is placed within a vessel configured to contain the object via an opening in the vessel. A cover is placed over the opening. A securing device is used to secure the cover to the vessel. A measurement device is used to measure the parameter of the object at a raised pressure. The parameter can be a nuclear magnetic resonance parameter of the object. A fluid in the vessel can be heated to raise the pressure within the sealed vessel. In various embodiments, the securing device can be a second cover or a clamp, for example. The measured parameter can be used in determining a suitability of the object for use in downhole environments.Type: GrantFiled: June 27, 2011Date of Patent: May 27, 2014Assignee: Baker Hughes IncorporatedInventors: David Peter Gerrard, Omar H. Balcazar
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Publication number: 20130075097Abstract: A borehole tool heat transfer altering system includes, a borehole tool, and a thermoelectric material in operable communication with the borehole tool configured to alter heat transfer between the borehole tool and an environment surrounding the borehole tool.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Applicant: BAKER HUGHES INCORPORATEDInventor: David Peter Gerrard
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Publication number: 20130012635Abstract: A thermoplastic material comprises the cure product of a thermoplastic polymer having a thermal decomposition temperature greater than or equal to about 200° C., the thermoplastic polymer being cured at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. An article is formed from the thermoplastic material.Type: ApplicationFiled: July 8, 2011Publication date: January 10, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Jiaxiang Ren, David Peter Gerrard, James Edward Goodson, Lillian Guo, Ping Duan
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Publication number: 20130009339Abstract: A method of preparing a cured thermoplastic material includes curing a thermoplastic polymer having a thermal decomposition temperature greater than or equal to about 200° C., at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. A method of making a shape memory material also includes curing a thermoplastic polymer to prepare a cured thermoplastic material.Type: ApplicationFiled: July 8, 2011Publication date: January 10, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Jiaxiang Ren, David Peter Gerrard, James Edward Goodson, Ping Duan, Lillian Guo
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Publication number: 20120326718Abstract: A method and apparatus for measuring a parameter of an object is disclosed. The object is placed within a vessel configured to contain the object via an opening in the vessel. A cover is placed over the opening. A securing device is used to secure the cover to the vessel. A measurement device is used to measure the parameter of the object at a raised pressure. The parameter can be a nuclear magnetic resonance parameter of the object. A fluid in the vessel can be heated to raise the pressure within the sealed vessel. In various embodiments, the securing device can be a second cover or a clamp, for example. The measured parameter can be used in determining a suitability of the object for use in downhole environments.Type: ApplicationFiled: June 27, 2011Publication date: December 27, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: David Peter Gerrard, Omar H. Balcazar
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Publication number: 20120090857Abstract: A swell controlling arrangement includes a swellable member configured to swell upon exposure to a swell inducing fluid, and an acidic material that is configured to form an acidic environment. The swell controlling arrangement is configured to preferentially expose the swellable member to the acidic environment when the swellable member and the acidic material are exposed to the swell inducing fluid.Type: ApplicationFiled: October 15, 2010Publication date: April 19, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: John C. Welch, David Peter Gerrard
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Publication number: 20110247669Abstract: A power-generating device includes a thermoelectric material contoured to conform to at least a portion of a tubular and at least two conductors in operable communication with the thermoelectric material.Type: ApplicationFiled: April 8, 2010Publication date: October 13, 2011Applicant: Baker Hughes IncorporatedInventor: David Peter Gerrard
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Publication number: 20100019456Abstract: Disclosed herein is a seal element comprising a seal coating. The seal element comprises a substrate, and a seal coating disposed on a surface of the substrate, wherein the seal coating comprises a layer of a nanoparticle material.Type: ApplicationFiled: July 28, 2008Publication date: January 28, 2010Applicant: BAKER HUGHES INCORPORATEDInventor: David Peter Gerrard