Patents by Inventor Jonathan M. Welles
Jonathan M. Welles 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: 8482736Abstract: A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the array of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.Type: GrantFiled: February 22, 2011Date of Patent: July 9, 2013Inventors: David Franzen, John Rada, Kevin Ediger, Greg Biggs, Jonathan M. Welles, Tanvir Demetriades-Shah
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Patent number: 8300218Abstract: Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.Type: GrantFiled: January 20, 2012Date of Patent: October 30, 2012Assignee: LI-COR, Inc.Inventors: Michael D. Furtaw, Robert D. Eckles, Georgiy G. Burba, Dayle K. McDermitt, Jonathan M. Welles
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Publication number: 20120204622Abstract: Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.Type: ApplicationFiled: January 20, 2012Publication date: August 16, 2012Applicant: Li-Cor, Inc.Inventors: Michael D. Furtaw, Robert D. Eckles, Georgiy G. Burba, Dayle K. McDermitt, Jonathan M. Welles
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Publication number: 20120187277Abstract: A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the may of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.Type: ApplicationFiled: February 23, 2012Publication date: July 26, 2012Applicant: LI-COR, Inc.Inventors: David Franzen, John Rada, Kevin Ediger, Greg Biggs, Jonathan M. Welles, Tanvir Demetriades-Shah
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Patent number: 8154714Abstract: Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.Type: GrantFiled: November 6, 2008Date of Patent: April 10, 2012Assignee: Li-Cor, Inc.Inventors: Michael D. Furtaw, Robert D. Eckles, Georgiy G. Burba, Dayle K. McDermitt, Jonathan M. Welles
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Publication number: 20120057160Abstract: Gas analyzer systems and methods for determining gas flux in a short intake tube configuration without using any Webb-Pearman-Leuning density correction. Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.Type: ApplicationFiled: August 31, 2010Publication date: March 8, 2012Applicant: LI-COR, Inc.Inventors: Georgiy G. Burba, Daniel J. Anderson, Michael D. Furtaw, Robert D. Eckles, Dayle K. McDermitt, Jonathan M. Welles
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Patent number: 8130379Abstract: Gas analyzer systems and methods for determining gas flux in a short intake tube configuration without using any Webb-Pearman-Leuning density correction. Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.Type: GrantFiled: August 31, 2010Date of Patent: March 6, 2012Assignee: Li-Cor, Inc.Inventors: Georgiy G. Burba, Daniel J. Anderson, Michael D. Furtaw, Robert D. Eckles, Dayle K. McDermitt, Jonathan M. Welles
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Publication number: 20110235043Abstract: A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the array of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.Type: ApplicationFiled: February 22, 2011Publication date: September 29, 2011Applicant: LI-COR, Inc.Inventors: David Franzen, John Rada, Kevin Ediger, Greg Biggs, Jonathan M. Welles, Tanvir Demetriades-Shah
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Patent number: 7929141Abstract: A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the array of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.Type: GrantFiled: January 10, 2008Date of Patent: April 19, 2011Assignee: Li-Cor, Inc.Inventors: David Franzen, John Rada, Kevin Ediger, Gregory L Biggs, Jonathan M. Welles, Tanvir Demetriades-Shah
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Patent number: 7911616Abstract: A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the array of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.Type: GrantFiled: February 13, 2006Date of Patent: March 22, 2011Assignee: LI-COR, Inc.Inventors: David Franzen, John Rada, Kevin Ediger, Greg Biggs, Jonathan M. Welles, Tanvir Demetriades-Shah
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Publication number: 20100110437Abstract: Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.Type: ApplicationFiled: November 6, 2008Publication date: May 6, 2010Applicant: LI-COR, Inc.Inventors: Michael D. Furtaw, Robert D. Eckles, Georgiy G. Burba, Dayle K. McDermitt, Jonathan M. Welles
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Publication number: 20080316491Abstract: A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the array of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.Type: ApplicationFiled: January 10, 2008Publication date: December 25, 2008Inventors: David Franzen, John Rada, Kevin Ediger, Greg Biggs, Jonathan M. Welles, Tanvir Demetriades-Shah
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Patent number: 7362439Abstract: A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the array of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.Type: GrantFiled: September 5, 2003Date of Patent: April 22, 2008Assignee: Li-Cor, Inc.Inventors: David Franzen, John Rada, Kevin Ediger, Greg Biggs, Jonathan M. Welles, Tanvir Demetriades-Shah
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Patent number: 5457320Abstract: To measure water vapor and carbon dioxide, a gas analyzer includes a light source, a reference flow cell, a sample flow cell, a detector and a source of gas. The light source, flow cells and detector are arranged so that the detector detects light transmitted from said light source through the flow cells. The flow cells have folded paths for the light. A reference signal is subtracted from a sample signal to obtain an independant variable. Carbon dioxide and air mixed with carbon dioxide are supplied as required. The carbon dioxide is supplied from a container through capillary tubes. Heat is applied to the tubes to control the flow rate. A signal representing gross concentration of the carbon dioxide as a dependant variable is obtained from said independent variable from an empirically determined polynomial.Type: GrantFiled: July 25, 1994Date of Patent: October 10, 1995Assignee: Li-Cor, Inc.Inventors: Robert D. Eckles, Dayle K. McDermitt, Jonathan M. Welles
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Patent number: 5340987Abstract: To measure water vapor and carbon dioxide, a gas analyzer includes a light source, a reference flow cell, a sample flow cell, a detector and a source of gas. The light source, flow cells and detector are arranged so that the detector detects light transmitted from said light source through the flow cells. The flow cells have folded paths for the light. A reference signal is subtracted from a sample signal to obtain an independant variable. Carbon dioxide and air mixed with carbon dioxide are supplied as required. The carbon dioxide is supplied from a container through capillary tubes. Heat is applied to the tubes to control the flow rate. A signal representing gross concentration of the carbon dioxide as a dependant variable is obtained from said independent variable from an empirically determined polynomial.Type: GrantFiled: February 27, 1992Date of Patent: August 23, 1994Assignee: Li-Cor, Inc.Inventors: Robert D. Eckles, Dayle K. McDermitt, Jonathan M. Welles
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Patent number: 5332901Abstract: To measure water vapor and carbon dioxide, a gas analyzer includes a light source, a reference flow cell, a sample flow cell, and a detector. The light source, flow cells and detector are arranged so that the detector detects light transmitted from said light source through said reference flow cell and through said sample flow cell and generates a reference signal representing the light transmitted through a reference gas in said reference flow cell and a sample signal representing the light transmitted through a sample gas in said sample flow cell. The reference signal is subtracted from the sample signal to obtain an independant variable. A signal representing gross concentration of the carbon dioxide as a dependant variable is obtained from said independent variable from a stored empirically determined third power polynomial. The polynomial includes terms having at least first, second and third powers of said independant variable.Type: GrantFiled: March 15, 1991Date of Patent: July 26, 1994Assignee: Li-Cor, Inc.Inventors: Robert D. Eckles, Dayle K. McDermitt, Jonathan M. Welles