Patents by Inventor Keith Shoemaker
Keith Shoemaker 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: 9250200Abstract: A Compton tomography system comprises an x-ray source configured to produce a planar x-ray beam. The beam irradiates a slice of an object to be imaged, producing Compton-scattered x-rays. The Compton-scattered x-rays are imaged by an x-ray camera. Translation of the object with respect to the source and camera or vice versa allows three-dimensional object imaging.Type: GrantFiled: August 15, 2012Date of Patent: February 2, 2016Assignee: Physical Optics CorporationInventors: Victor Grubsky, Volodymyr Romanoov, Keith Shoemaker, Edward Matthew Patton, Tomasz Jannson
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Patent number: 9090034Abstract: An improved chair back is formed of a molded construction uses multiple mold shots of mold materials to develop different performance characteristics in selected areas of the chair back. The chair back has the appearance of a unitary molded panel, but is formed from multiple mold shots which preferably are performed at multiple stations on a mold tool. By providing multiple mold shots and selected materials to form different areas of the chair back, different performance characteristics are generated including the provision of a peripheral frame providing structural rigidity to the chair back, a lumbar support panel which provides localized support to the lumbar region of the chair occupant, and a thin sheet-like support panel extending between the frame and enclosing the interior region defined between the peripheral frame to provide a more flexible and pliant surface providing more comfortable contact with the occupant's back.Type: GrantFiled: April 26, 2011Date of Patent: July 28, 2015Assignee: Haworth, Inc.Inventors: Tim Fookes, Keith Shoemaker, Pete Beyer, Mark Sherman
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Patent number: 8705694Abstract: The present invention provides systems and methods for x-ray imaging. In some embodiments, an aperture, or a plurality thereof, are configured to have image transfer functions lacking a zero within a usable spatial frequency range. In further embodiments, the image transfer function is determined according to the shape of the aperture and the usable spatial frequency range is determined according to a usable signal to noise ratio.Type: GrantFiled: November 23, 2009Date of Patent: April 22, 2014Assignee: Physical Optics CorporationInventors: Victor Grubsky, Tomasz Jannson, Edward Matthew Patton, Volodymyr Romanoov, Gennady Medvedkin, Paul Shnitser, Keith Shoemaker
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Publication number: 20130181372Abstract: An improved chair back is formed of a molded construction uses multiple mold shots of mold materials to develop different performance characteristics in selected areas of the chair back. The chair back has the appearance of a unitary molded panel, but is formed from multiple mold shots which preferably are performed at multiple stations on a mold tool. By providing multiple mold shots and selected materials to form different areas of the chair back, different performance characteristics are generated including the provision of a peripheral frame providing structural rigidity to the chair back, a lumbar support panel which provides localized support to the lumbar region of the chair occupant, and a thin sheet-like support panel extending between the frame and enclosing the interior region defined between the peripheral frame to provide a more flexible and pliant surface providing more comfortable contact with the occupant's back.Type: ApplicationFiled: April 26, 2011Publication date: July 18, 2013Applicant: HAWORTH, INC.Inventors: Tim Fookes, Keith Shoemaker, Pete Beyer, Mark Sherman
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Patent number: 8235468Abstract: An office chair is provided with includes a chair arm assembly on each opposite side thereof for supporting the arms of a user. The arm assemblies each include a latching assembly to permit adjustment of the height of an arm cap thereof while maintaining the arm cap at a selected elevation. The latch assembly is engageable with an inner liner provided within a support post. Further, the armrest assembly has a plurality of interconnected and relatively movable plates which permit adjustment of the angular orientation of the arm cap along with adjustment of the arm cap in the front-to-back direction and the side-to-side direction.Type: GrantFiled: December 30, 2008Date of Patent: August 7, 2012Assignee: Haworth, Inc.Inventors: Tim Fookes, Tracy Cook, Keith Shoemaker, Brian Gessler, Rick Roels, Joanna Atman
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Publication number: 20120068512Abstract: An office chair is provided with includes a chair arm assembly on each opposite side thereof for supporting the arms of a user. The arm assemblies each include a latching assembly to permit adjustment of the height of an arm cap thereof while maintaining the arm cap at a selected elevation. The latch assembly is engageable with an inner liner provided within a support post. Further, the armrest assembly has a plurality of interconnected and relatively movable plates which permit adjustment of the angular orientation of the arm cap along with adjustment of the arm cap in the front-to-back direction and the side-to-side direction.Type: ApplicationFiled: December 30, 2008Publication date: March 22, 2012Inventors: Tim Fookes, Tracy Cook, Keith Shoemaker, Brian Gessler, Rick Roels, Joanna Atman
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Publication number: 20110122994Abstract: The present invention provides systems and methods for x-ray imaging. In some embodiments, an aperture, or a plurality thereof, are configured to have image transfer functions lacking a zero within a usable spatial frequency range. In further embodiments, the image transfer function is determined according to the shape of the aperture and the usable spatial frequency range is deter mined according to a usable signal to noise ratio.Type: ApplicationFiled: November 23, 2009Publication date: May 26, 2011Inventors: Victor Grubsky, Tomasz Jannson, Edward Matthew Patton, Volodymyr Romanoov, Gennady Medvedkin, Paul Shnitser, Keith Shoemaker
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Patent number: 7815259Abstract: An office chair is provided with includes a chair arm assembly on each opposite side thereof for supporting the arms of a user. The arm assemblies each include a latching assembly to permit adjustment of the height of an arm cap thereof while maintaining the arm cap at a selected elevation. The latch assembly is engageable with an inner liner provided within a support post. Further, the armrest assembly has a plurality of interconnected and relatively movable plates which permit adjustment of the angular orientation of the arm cap along with adjustment of the arm cap in the front-to-back direction and the side-to-side direction.Type: GrantFiled: April 2, 2009Date of Patent: October 19, 2010Assignee: Haworth, Inc.Inventors: Tim Fookes, Tracy Cook, Keith Shoemaker, Brian Gessler, Rick Roels
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Publication number: 20090189428Abstract: An office chair is provided with includes a chair arm assembly on each opposite side thereof for supporting the arms of a user. The arm assemblies each include a latching assembly to permit adjustment of the height of an arm cap thereof while maintaining the arm cap at a selected elevation. The latch assembly is engageable with an inner liner provided within a support post. Further, the armrest assembly has a plurality of interconnected and relatively movable plates which permit adjustment of the angular orientation of the arm cap along with adjustment of the arm cap in the front-to-back direction and the side-to-side direction.Type: ApplicationFiled: April 2, 2009Publication date: July 30, 2009Inventors: Tim Fookes, Tracy Cook, Keith Shoemaker, Brian Gessler, Rick Roels
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Patent number: 7533939Abstract: An office chair is provided with includes a chair arm assembly on each opposite side thereof for supporting the arms of a user. The arm assemblies each include a latching assembly to permit adjustment of the height of an arm cap thereof while maintaining the arm cap at a selected elevation. The latch assembly is engageable with an inner liner provided within a support post. Further, the armrest assembly has a plurality of interconnected and relatively movable plates which permit adjustment of the angular orientation of the arm cap along with adjustment of the arm cap in the front-to-back direction and the side-to-side direction.Type: GrantFiled: November 10, 2006Date of Patent: May 19, 2009Assignee: Haworth, Inc.Inventors: Tim Fookes, Tracy Cook, Keith Shoemaker, Brian Gessler, Rick Roels
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Publication number: 20070057560Abstract: An office chair is provided with includes a chair arm assembly on each opposite side thereof for supporting the arms of a user. The arm assemblies each include a latching assembly to permit adjustment of the height of an arm cap thereof while maintaining the arm cap at a selected elevation. The latch assembly is engageable with an inner liner provided within a support post. Further, the armrest assembly has a plurality of interconnected and relatively movable plates which permit adjustment of the angular orientation of the arm cap along with adjustment of the arm cap in the front-to-back direction and the side-to-side direction.Type: ApplicationFiled: November 10, 2006Publication date: March 15, 2007Inventors: Tim Fookes, Tracy Cook, Keith Shoemaker, Brian Gessler, Rick Roels