Patents by Inventor Kenneth R. Smith
Kenneth R. Smith 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: 7360785Abstract: A pivotal handle for a food service table is disclosed. The handle includes two elongated, parallel curved bar members. Each member has an outwardly extending arm and an outwardly extending leg. The legs have means for pivotably attaching the handle to the underside of the table. In its operative position, the handle is pivoted upwardly so that the arms are located above the top of the table. Locking means such as a quick release pin is inserted into an opening formed in the leg which locks the handle in place. When the table is ready to be used as a dining table or to be stored, the pin is removed so that the handle may now be rotated downwardly and stored under the table. A spring clip may be attached to the underside of the table which secures the handle in place when the handle is in the stored position.Type: GrantFiled: May 17, 2004Date of Patent: April 22, 2008Assignee: Sico IncorporatedInventor: Kenneth R. Smith
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Patent number: 7330023Abstract: A probe station includes a fully guarded chuck assembly and connector mechanism for increasing sensitivity to low-level currents while reducing settling times. The chuck assembly includes a wafer-supporting first chuck element surrounded by a second chuck element having a lower component, skirting component and upper component each with a surface portion extending opposite the first element for guarding thereof. The connector mechanism is so connected to the second chuck element as to enable, during low-level current measurements, the potential on each component to follow that on the first chuck element as measured relative to an outer shielding enclosure surrounding each element. Leakage current from the first chuck element is thus reduced to virtually zero, hence enabling increased current sensitivity, and the reduced capacitance thus provided by the second chuck element decreases charging periods, hence reducing settling times.Type: GrantFiled: April 21, 2005Date of Patent: February 12, 2008Assignee: Cascade Microtech, Inc.Inventors: Randy J. Schwindt, Warren K. Harwood, Paul A. Tervo, Kenneth R. Smith, Richard H. Warner
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Patent number: 7148711Abstract: A membrane probing assembly includes a probe card with conductors supported thereon, wherein the conductors include at least a signal conductor located between a pair of spaced apart guard conductors. A membrane assembly includes a membrane with contacts thereon, and supporting at least a signal conductor located between a pair of spaced apart guard conductors. The guard conductors of the probe card are electrically interconnected proximate the interconnection between the probe card and the membrane assembly. The guard conductors of the membrane assembly are electrically interconnected proximate the interconnection between the probe card and the membrane assembly.Type: GrantFiled: June 3, 2005Date of Patent: December 12, 2006Assignee: Cascade Microtech, Inc.Inventors: Paul A. Tervo, Kenneth R. Smith, Clarence E. Cowan, Mike P. Dauphinais, Martin J. Koxxy
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Patent number: 7109731Abstract: A membrane probing assembly includes a support element having an incompressible forward support tiltably coupled to a rearward base and a membrane assembly, formed of polyimide layers, with its central region interconnected to the support by an elastomeric layer. Flexible traces form data/signal lines to contacts on the central region. Each contact comprises a rigid beam and a bump located in off-centered location on the beam, which bump includes a contacting portion. After initial touchdown of these contacting portions, further over-travel of the pads causes each beam to independently tilt locally so that different portions of each beam move different distances relative to the support thus driving each contact into lateral scrubbing movement across the pad thereby clearing away oxide buildup. The elastomeric member backed by the incompressible support ensures sufficient scrub pressure and reliable tilt recovery of each contact without mechanical straining of the beam.Type: GrantFiled: June 17, 2005Date of Patent: September 19, 2006Assignee: Cascade Microtech, Inc.Inventors: K. Reed Gleason, Kenneth R. Smith, Mike Bayne
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Patent number: 6980012Abstract: A probe station includes a fully guarded chuck assembly and connector mechanism for increasing sensitivity to low-level currents while reducing settling times. The chuck assembly includes a wafer-supporting first chuck element surrounded by a second chuck element having a lower component, skirting component and upper component each with a surface portion extending opposite the first element for guarding thereof. The connector mechanism is so connected to the second chuck element as to enable, during low-level current measurements, the potential on each component to follow that on the first chuck element as measured relative to an outer shielding enclosure surrounding each element. Leakage current from the first chuck element is thus reduced to virtually zero, hence enabling increased current sensitivity, and the reduced capacitance thus provided by the second chuck element decreases charging periods, hence reducing settling times.Type: GrantFiled: October 2, 2003Date of Patent: December 27, 2005Assignee: Cascase Microtech, Inc.Inventors: Randy J. Schwindt, Warren K. Harwood, Paul A. Tervo, Kenneth R. Smith, Richard H. Warner
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Patent number: 6930498Abstract: A membrane probing assembly includes a probe card with conductors supported thereon, wherein the conductors include at least a signal conductor located between a pair of spaced apart guard conductors. A membrane assembly includes a membrane with contacts thereon, and supporting at least a signal conductor located between a pair of spaced apart guard conductors. The guard conductors of the probe card are electrically interconnected proximate the interconnection between the probe card and the membrane assembly. The guard conductors of the membrane assembly are electrically interconnected proximate the interconnection between the probe card and the membrane assembly.Type: GrantFiled: July 29, 2004Date of Patent: August 16, 2005Assignee: Cascade Microtech, Inc.Inventors: Paul A. Tervo, Kenneth R. Smith, Clarence E. Cowan, Mike P. Dauphinais, Martin J. Koxxy
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Patent number: 6927585Abstract: A membrane probing assembly includes a support element having an incompressible forward support tiltably coupled to a rearward base and a membrane assembly, formed of polyimide layers, with its central region interconnected to the support by an elastomeric layer. Flexible traces form data/signal lines to contacts on the central region. Each contact comprises a rigid beam and a bump located in off-centered location on the beam, which bump includes a contacting portion. After initial touchdown of these contacting portions, further over-travel of the pads causes each beam to independently tilt locally so that different portions of each beam move different distances relative to the support thus driving each contact into lateral scrubbing movement across the pad thereby clearing away oxide buildup. The elastomeric member backed by the incompressible support ensures sufficient scrub pressure and reliable tilt recovery of each contact without mechanical straining of the beam.Type: GrantFiled: May 20, 2002Date of Patent: August 9, 2005Assignee: Cascade Microtech, Inc.Inventors: K. Reed Gleason, Kenneth R. Smith, Mike Bayne
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Patent number: 6859162Abstract: In an underground object locating system in which a modulated RF signal is applied to the underground object and an emitted signal is detected by a receiver, ambiguity in the direction of current flow in the underground object is resolved by modulating the RF signal with a modulation signal such that the modulated signal, f(t) has an average value of zero and is not equal to ?f(t+K) where K is any practical value. In specific embodiments, the modulation can be amplitude modulation where the modulating signal is lower in frequency than the RF signal and is related thereto by a rational number, such as one-half (½).Type: GrantFiled: February 15, 2002Date of Patent: February 22, 2005Assignee: Geometrics, Inc.Inventor: Kenneth R. Smith
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Patent number: 6838890Abstract: A membrane probing assembly includes a probe card with conductors supported thereon, wherein the conductors include at least a signal conductor located between a pair of spaced apart guard conductors. A membrane assembly includes a membrane with contacts thereon, and supporting at least a signal conductor located between a pair of spaced apart guard conductors. The guard conductors of the probe card are electrically interconnected proximate the interconnection between the probe card and the membrane assembly. The guard conductors of the membrane assembly are electrically interconnected proximate the interconnection between the probe card and the membrane assembly.Type: GrantFiled: November 29, 2000Date of Patent: January 4, 2005Assignee: Cascade Microtech, Inc.Inventors: Paul A. Tervo, Kenneth R. Smith, Clarence E. Cowan, Mike P. Dauphinais, Martin J. Koxxy
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Publication number: 20040262868Abstract: A pivotal handle for a food service table is disclosed. The handle includes two elongated, parallel curved bar members. Each member has an outwardly extending arm and an outwardly extending leg. The legs have means for pivotably attaching the handle to the underside of the table. In its operative position, the handle is pivoted upwardly so that the arms are located above the top of the table. Locking means such as a quick release pin is inserted into an opening formed in the leg which locks the handle in place. When the table is ready to be used as a dining table or to be stored, the pin is removed so that the handle may now be rotated downwardly and stored under the table. A spring clip may be attached to the underside of the table which secures the handle in place when the handle is in the stored position.Type: ApplicationFiled: May 17, 2004Publication date: December 30, 2004Inventor: Kenneth R. Smith
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Patent number: 6802525Abstract: A pivotal handle for a food service table is disclosed. The handle includes two elongated, parallel curved bar members. Each member has an outwardly extending arm and an outwardly extending leg. The legs have means for pivotably attaching the handle to the underside of the table. In its operative position, the handle is pivoted upwardly so that the arms are located above the top of the table. Locking means such as a quick release pin is inserted into an opening formed in the leg which locks the handle in place. When the table is ready to be used as a dining table or to be stored, the pin is removed so that the handle may now be rotated downwardly and stored under the table. A spring clip may be attached to the underside of the table which secures the handle in place when the handle is in the stored position.Type: GrantFiled: September 13, 2001Date of Patent: October 12, 2004Assignee: Sico IncorporatedInventor: Kenneth R. Smith
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Patent number: 6720782Abstract: A probe station includes a fully guarded chuck assembly and connector mechanism for increasing sensitivity to low-level currents while reducing settling times. The chuck assembly includes a wafer-supporting first chuck element surrounded by a second chuck element having a lower component, skirting component and upper component each with a surface portion extending opposite the first element for guarding thereof. The connector mechanism is so connected to the second chuck element as to enable, during low-level current measurements, the potential on each component to follow that on the first chuck element as measured relative to an outer shielding enclosure surrounding each element. Leakage current from the first chuck element is thus reduced to virtually zero, hence enabling increased current sensitivity, and the reduced capacitance thus provided by the second chuck element decreases charging periods, hence reducing settling times.Type: GrantFiled: October 17, 2002Date of Patent: April 13, 2004Assignee: Cascade Microtech, Inc.Inventors: Randy J. Schwindt, Warren K. Harwood, Paul A. Tervo, Kenneth R. Smith, Richard H. Warner
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Publication number: 20040061514Abstract: A probe station includes a fully guarded chuck assembly and connector mechanism for increasing sensitivity to low-level currents while reducing settling times. The chuck assembly includes a wafer-supporting first chuck element surrounded by a second chuck element having a lower component, skirting component and upper component each with a surface portion extending opposite the first element for guarding thereof. The connector mechanism is so connected to the second chuck element as to enable, during low-level current measurements, the potential on each component to follow that on the first chuck element as measured relative to an outer shielding enclosure surrounding each element. Leakage current from the first chuck element is thus reduced to virtually zero, hence enabling increased current sensitivity, and the reduced capacitance thus provided by the second chuck element decreases charging periods, hence reducing settling times.Type: ApplicationFiled: October 2, 2003Publication date: April 1, 2004Inventors: Randy J. Schwindt, Warren K. Harwood, Paul A. Tervo, Kenneth R. Smith, Richard H. Warner
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Publication number: 20030156042Abstract: In an underground object locating system in which a modulated RF signal is applied to the underground object and an emitted signal is detected by a receiver, ambiguity in the direction of current flow in the underground object is resolved by modulating the RF signal with a modulation signal such that the modulated signal, f(t) has an average value of zero and is not equal to −f(t+K) where K is any practical value. In specific embodiments, the modulation can be amplitude modulation where the modulating signal is lower in frequency than the RF signal and is related thereto by a rational number, such as one-half (½).Type: ApplicationFiled: February 15, 2002Publication date: August 21, 2003Applicant: GEOMETRICS, INC.Inventor: Kenneth R. Smith
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Publication number: 20030132767Abstract: A membrane probing assembly includes a probe card with conductors supported thereon, wherein the conductors include at least a signal conductor located between a pair of spaced apart guard conductors. A membrane assembly includes a membrane with contacts thereon, and supporting at least a signal conductor located between a pair of spaced apart guard conductors. The guard conductors of the probe card are electrically interconnected proximate the interconnection between the probe card and the membrane assembly. The guard conductors of the membrane assembly are electrically interconnected proximate the interconnection between the probe card and the membrane assembly.Type: ApplicationFiled: November 29, 2000Publication date: July 17, 2003Inventors: Paul A. Tervo, Kenneth R. Smith, Clarence E. Cowan, Mike P. Dauphinais, Martin J. Koxxy
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Publication number: 20030057979Abstract: A probe station includes a fully guarded chuck assembly and connector mechanism for increasing sensitivity to low-level currents while reducing settling times. The chuck assembly includes a wafer-supporting first chuck element surrounded by a second chuck element having a lower component, skirting component and upper component each with a surface portion extending opposite the first element for guarding thereof. The connector mechanism is so connected to the second chuck element as to enable, during low-level current measurements, the potential on each component to follow that on the first chuck element as measured relative to an outer shielding enclosure surrounding each element. Leakage current from the first chuck element is thus reduced to virtually zero, hence enabling increased current sensitivity, and the reduced capacitance thus provided by the second chuck element decreases charging periods, hence reducing settling times.Type: ApplicationFiled: October 17, 2002Publication date: March 27, 2003Inventors: Randy J. Schwindt, Warren K. Harwood, Paul A. Tervo, Kenneth R. Smith, Richard H. Warner
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Publication number: 20030047914Abstract: A pivotal handle for a food service table is disclosed. The handle includes two elongated, parallel curved bar members. Each member has an outwardly extending arm and an outwardly extending leg. The legs have means for pivotably attaching the handle to the underside of the table. In its operative position, the handle is pivoted upwardly so that the arms are located above the top of the table. Locking means such as a quick release pin is inserted into an opening formed in the leg which locks the handle in place. When the table is ready to be used as a dining table or to be stored, the pin is removed so that the handle may now be rotated downwardly and stored under the table. A spring clip may be attached to the underside of the table which secures the handle in place when the handle is in the stored position.Type: ApplicationFiled: September 13, 2001Publication date: March 13, 2003Inventor: Kenneth R. Smith
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Patent number: 6492822Abstract: A probe station includes a fully guarded chuck assembly and connector mechanism for increasing sensitivity to low-level currents while reducing settling times. The chuck assembly includes a wafer-supporting first chuck element surrounded by a second chuck element having a lower component, skirting component and upper component each with a surface portion extending opposite the first element for guarding thereof. The connector mechanism is so connected to the second chuck element as to enable, during low-level current measurements, the potential on each component to follow that on the first chuck element as measured relative to an outer shielding enclosure surrounding each element. Leakage current from the first chuck element is thus reduced to virtually zero, hence enabling increased current sensitivity, and the reduced capacitance thus provided by the second chuck element decreases charging periods, hence reducing settling times.Type: GrantFiled: October 30, 2001Date of Patent: December 10, 2002Assignee: Cascade Microtech, Inc.Inventors: Randy J. Schwindt, Warren K. Harwood, Paul A. Tervo, Kenneth R. Smith, Richard H. Warner
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Publication number: 20020135388Abstract: A membrane probing assembly includes a support element having an incompressible forward support tiltably coupled to a rearward base and a membrane assembly, formed of polyimide layers, with its central region interconnected to the support by an elastomeric layer. Flexible traces form data/signal lines to contacts on the central region. Each contact comprises a rigid beam and a bump located in off-centered location on the beam, which bump includes a contacting portion. After initial touchdown of these contacting portions, further over-travel of the pads causes each beam to independently tilt locally so that different portions of each beam move different distances relative to the support thus driving each contact into lateral scrubbing movement across the pad thereby clearing away oxide buildup. The elastomeric member backed by the incompressible support ensures sufficient scrub pressure and reliable tilt recovery of each contact without mechanical straining of the beam.Type: ApplicationFiled: May 20, 2002Publication date: September 26, 2002Inventors: K. Reed Gleason, Kenneth R. Smith, Mike Bayne
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Patent number: 6437584Abstract: A membrane probing assembly includes a support element having an incompressible forward support tiltably coupled to a rewarward base and a membrane assembly, formed of polyimide layers, with its central region interconnected to the support by an elastomeric layer. Flexible traces form data/signal lines to contacts on the central region. Each contact comprises a rigid beam and a bump located in off-centered location on the beam, which bump includes a contacting portion. After initial touchdown of these contacting portions, further over-travel of the pads causes each beam to independently tilt locally so that different portions of each beam move different distances relative to the support thus driving each contact into lateral scrubbing movement across the pad thereby clearing away oxide buildup. The elastomeric member backed by the incompressible support ensures sufficient scrub pressure and reliable tilt recovery of each contact without mechanical straining of the beam.Type: GrantFiled: October 10, 2000Date of Patent: August 20, 2002Assignee: Cascade Microtech, Inc.Inventors: K. Reed Gleason, Kenneth R. Smith, Mike Bayne