Patents by Inventor Timothy Ascheman

Timothy Ascheman 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).

  • Patent number: 10488318
    Abstract: A target-analyte permeation testing instrument (10) characterized by a sensor feed line (300nBout and 3005) conditioning system.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 26, 2019
    Assignee: MOCON, INC.
    Inventor: Timothy A. Ascheman
  • Patent number: 9958373
    Abstract: A protocol adaptive, computer controlled target-analyte permeation testing instrument, capable of self-adaptive adjustments to measurement interval, rezero frequency and independent zero go-no-go.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: May 1, 2018
    Assignee: MOCON, INC.
    Inventors: Timothy A Ascheman, Stephen D. Tuomela
  • Publication number: 20170030820
    Abstract: A protocol adaptive, computer controlled target-analyte permeation testing instrument, capable of self-adaptive adjustments to measurement interval, rezero frequency and independent zero go-no-go.
    Type: Application
    Filed: February 24, 2015
    Publication date: February 2, 2017
    Inventors: Timothy A ASCHEMAN, Stephen D. TUOMELA
  • Publication number: 20160299049
    Abstract: A target-analyte permeation testing instrument (10) characterized by a sensor feed line (300nBout and 3005) conditioning system.
    Type: Application
    Filed: February 24, 2015
    Publication date: October 13, 2016
    Applicant: MOCON, INC.
    Inventor: Timothy A. Ascheman
  • Patent number: 9274060
    Abstract: Measuring oxygen concentration and monitoring changes in oxygen concentration within an enclosed space by applying a transmembrane photoluminescent oxygen probe to the external surface of the membrane forming the enclosed space, wherein the transmembrane photoluminescent oxygen probe has an oxygen impermeable support layer carrying a spot of an oxygen-sensitive photoluminescent dye and a layer of a pressure-sensitive adhesive on a first major surface of the support layer.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: March 1, 2016
    Assignee: MOCON, INC.
    Inventor: Timothy A. Ascheman
  • Patent number: 9121827
    Abstract: A method of contemporaneously monitoring changes in analyte concentration in a plurality of samples using a single monitoring device, wherein monitoring can be commenced and continued on independent timelines for each sample.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 1, 2015
    Assignee: Mocon, Inc.
    Inventors: Daniel W. Mayer, Timothy A. Ascheman
  • Publication number: 20130005047
    Abstract: A method of calibrating a luminescence lifetime sensing instrument 20 and of interrogating a target-analyte long-decay luminescence probe 120 includes measuring and reporting luminescence lifetime of the probe 120 employing excitation radiation filtered to remove emission radiation, or a starting time tstart delayed by a predetermined decay delay time, or delayed by a predetermined growth delay time, or an ending time comprising the time at which luminescence intensity has decayed or risen a predetermined percentage.
    Type: Application
    Filed: March 10, 2011
    Publication date: January 3, 2013
    Applicant: MOCON, INC.
    Inventors: Daniel W. Mayer, Michael D. Howe, Timothy A. Ascheman, John Eastman
  • Publication number: 20130005046
    Abstract: A method of contemporaneously monitoring changes in analyte concentration in a plurality of samples using a single monitoring device, wherein monitoring can be commenced and continued on independent timelines for each sample.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Inventors: Daniel W. Mayer, Timothy A. Ascheman
  • Patent number: 8323978
    Abstract: A calibration device and method of using the device to calibrate an analytical instrument capable of reading a photoluminescent oxygen probe. The device includes at least (a) a first mass of an oxygen sensitive photoluminescent dye retained within a hermetically sealed space so as to isolate the dye from environmental oxygen, and in fluid communication with an activated metal-air battery whereby any oxygen permeating into the hermetically sealed space is quickly consumed by the battery, and (b) a second mass of an oxygen sensitive photoluminescent dye in fluid communication with an environmental concentration of oxygen.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: December 4, 2012
    Assignee: Mocon, Inc.
    Inventors: Timothy A. Ascheman, Daniel W. Mayer
  • Patent number: 8241911
    Abstract: A calibration card and method of using the card to calibrate an analytical instrument capable of reading a photoluminescent oxygen probe. The card includes at least (a) a first mass of an oxygen sensitive photoluminescent dye retained within a hermetically sealed space so as to isolate the dye from environmental oxygen, and in fluid communication with an activated metal-air battery whereby any oxygen permeating into the hermetically sealed space is quickly consumed by the battery, and (b) a second mass of an oxygen sensitive photoluminescent dye in fluid communication with the environment whereby the second mass of photoluminescent dye is exposed to an environmental concentration of oxygen.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: August 14, 2012
    Assignee: Mocon, Inc.
    Inventors: Timothy A. Ascheman, Daniel W. Mayer, Stephen D. Tuomela
  • Publication number: 20110223678
    Abstract: A calibration device and method of using the device to calibrate an analytical instrument capable of reading a photoluminescent oxygen probe. The device includes at least (a) a first mass of an oxygen sensitive photoluminescent dye retained within a hermetically sealed space so as to isolate the dye from environmental oxygen, and in fluid communication with an activated metal-air battery whereby any oxygen permeating into the hermetically sealed space is quickly consumed by the battery, and (b) a second mass of an oxygen sensitive photoluminescent dye in fluid communication with an environmental concentration of oxygen.
    Type: Application
    Filed: May 20, 2011
    Publication date: September 15, 2011
    Inventors: Timothy A. Ascheman, Daniel W. Mayer
  • Publication number: 20110154881
    Abstract: A calibration card and method of using the card to calibrate an analytical instrument capable of reading a photoluminescent oxygen probe. The card includes at least (a) a first mass of an oxygen sensitive photoluminescent dye retained within a hermetically sealed space so as to isolate the dye from environmental oxygen, and in fluid communication with an activated metal-air battery whereby any oxygen permeating into the hermetically sealed space is quickly consumed by the battery, and (b) a second mass of an oxygen sensitive photoluminescent dye in fluid communication with the environment whereby the second mass of photoluminescent dye is exposed to an environmental concentration of oxygen.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 30, 2011
    Inventors: Timothy A. Ascheman, Daniel W. Mayer, Stephen D. Tuomela
  • Patent number: 7654131
    Abstract: An instrument for accurately measuring mass flow rate of a fluid pumped from a hermetically sealed container, through attainment of a steady state mass flow rate, having a check valve positioned between a vacuum pump and a mass flow rate sensor.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: February 2, 2010
    Assignee: Mocon, Inc.
    Inventor: Timothy A. Ascheman
  • Patent number: 7624623
    Abstract: An instrument for detecting leaks in a hermetically sealed package. The instrument includes (i) a hollow needle, (ii) a mass flow rate sensor in sealed fluid communication with the lumen defined by the hollow needle, and (iii) a vacuum pump. The vacuum pump is in fluid communication with the lumen defined by the needle for evacuating gas from the hermetically sealed package, and in fluid communication with the mass flow rate sensor for directing mass flow from the evacuated package into operable contact with the mass flow rate sensor so as to permit sensing of any continuing mass flow from the evacuated package. The instrument may further include an oxygen sensor in sealed fluid communication with the lumen defined by the hollow needle for analyzing the oxygen concentration of the gas within the hermetically sealed package.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: December 1, 2009
    Assignee: Mocon, Inc.
    Inventors: Daniel W. Mayer, Timothy A. Ascheman
  • Patent number: 7578170
    Abstract: An instrument for detecting leaks in a hermetically sealed package. The instrument includes (i) a hollow needle, (ii) a mass flow rate sensor in sealed fluid communication with the lumen defined by the hollow needle, and (iii) a vacuum pump. The vacuum pump is in fluid communication with the lumen defined by the needle for evacuating gas from the hermetically sealed package, and in fluid communication with the mass flow rate sensor for directing mass flow from the evacuated package into operable contact with the mass flow rate sensor so as to permit sensing of any continuing mass flow from the evacuated package. The instrument may further include an oxygen sensor, also in sealed fluid communication with the lumen defined by the hollow needle for analyzing the oxygen concentration of the gas within the hermetically sealed package.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: August 25, 2009
    Assignee: Mocon, Inc.
    Inventors: Daniel W. Mayer, Timothy A. Ascheman
  • Publication number: 20070289390
    Abstract: An instrument for accurately measuring mass flow rate of a fluid pumped from a hermetically sealed container, through attainment of a steady state mass flow rate, having a check valve positioned between a vacuum pump and a mass flow rate sensor.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 20, 2007
    Inventor: Timothy A. Ascheman
  • Publication number: 20070266773
    Abstract: An instrument for detecting leaks in a hermetically sealed package. The instrument includes (i) a hollow needle, (ii) a mass flow rate sensor in sealed fluid communication with the lumen defined by the hollow needle, and (iii) a vacuum pump. The vacuum pump is in fluid communication with the lumen defined by the needle for evacuating gas from the hermetically sealed package, and in fluid communication with the mass flow rate sensor for directing mass flow from the evacuated package into operable contact with the mass flow rate sensor so as to permit sensing of any continuing mass flow from the evacuated package. The instrument may further include an oxygen sensor in sealed fluid communication with the lumen defined by the hollow needle for analyzing the oxygen concentration of the gas within the hermetically sealed package.
    Type: Application
    Filed: December 13, 2005
    Publication date: November 22, 2007
    Applicant: MOCON, INC
    Inventors: Daniel Mayer, Timothy Ascheman
  • Patent number: 7252014
    Abstract: An instrument and method for measuring the volume of a hermetically sealed, variable volume, pressure conforming container. The instrument includes a needle, a vacuum pump, a mass flow rate sensor and an integrator. The needle has a lumen operable for sealingly perforating a container and thereby placing the lumen of the needle in fluid communication with a retention chamber defined by the container. The vacuum pump evacuates the gaseous content from the retention chamber through the lumen defined by the needle and past a mass flow rate sensor for sensing mass flow rates pulled through the lumen and transmitting corresponding mass flow rate signals over time to the integrator. The integrator is programmed to integrate the received mass flow rate signals over time through achievement of an evacuated retention chamber to generate a total mass value, and calculate a volume from the total mass value employing the Ideal Gas Law.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: August 7, 2007
    Assignee: Mocon, Inc.
    Inventors: Daniel W. Mayer, Timothy A. Ascheman
  • Publication number: 20050092068
    Abstract: Provided are an apparatus and a method for measuring gas transmission rates and nanoleaks of deformable and brittle materials. The apparatus includes a test chamber having an upper and lower diffusion cells that when closed form a chamber wall seal, a gas inlet and a gas outlet in fluid communication with the lower diffusion cell, the upper diffusion cell being fluidly connected to a high-vacuum mass spectrometer. The method of measuring gas transmission rates and nanoleaks includes placing a sealed package containing the test gas in the lower diffusion cell, closing the upper and lower diffusion cells, flushing the lower diffusion cell with a source of a second gas other than the test gas, closing off the source of the second gas; and measuring the leak rate of the sealed package.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 5, 2005
    Inventors: Timothy Ascheman, Daniel Mayer
  • Patent number: 6354138
    Abstract: A method for validating permeation measurements through closed containers including closure members, by making a first measurement of permeation through a container of a first size, and making a second measurement of permeation through a container of a second size, both with the same closure members, and subtracting the permeation measurement contributions respectively made by the closure members.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: March 12, 2002
    Assignee: Mocon, Inc.
    Inventors: Timothy A. Ascheman, Michelle Stevens