Patents Assigned to Rudolph Research Analytical
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Patent number: 10101353Abstract: A liquid sample loader for an analytical instrument includes a sample holder with a sample well for holding a liquid sample and a sample passageway extending upwardly at an inclined angle from a bottom portion of the well, a pump positioned upstream from the sample holder and an upstream passageway coupled between the sample and the pump. A controller controls the pump to push the sample in the sample well downstream through the sample passageway toward the measuring instrument.Type: GrantFiled: June 30, 2016Date of Patent: October 16, 2018Assignee: Rudolph Research Analytical CorporationInventor: Jeff Wagner
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Patent number: 9677995Abstract: A sample cell filling device for filling a sample cell to be used remotely from a polarimeter is provided. The filling device includes a liquid-sealed housing, light source and a diffuser viewing screen. The housing has a recess for receiving the sample cell, the sample cell having first and second optical windows at the respective ends. A light source transmits light from one optical window to the other optical window. A diffuser viewing screen receives light exiting from the sample cell such that light from the viewing screen can be observed by a user to determine the quality of the sample fill.Type: GrantFiled: January 13, 2015Date of Patent: June 13, 2017Assignee: RUDOLPH RESEARCH ANALYTICAL CORPORATIONInventors: Richard C. Spanier, Jeff Wagner
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Patent number: 8922773Abstract: A system and method for polarimetry are disclosed in which a polarimeter may include a light source for transmitting a light beam through a sample within a container; a wavelength selector configured to specify a target wavelength at which the polarization rotation of the light beam emerging from the sample will be evaluated; a polarization rotator configured to be selectively moved into and out of a path of the light beam from the light source; and a detector for obtaining a first measurement of the light beam polarization rotation with the polarization rotator outside the path of the light beam, and a second measurement of the light beam polarization rotation with the polarization rotator within the path of the light beam, with both measurements occurring at the wavelength resulting from the configuration of the wavelength selector.Type: GrantFiled: December 29, 2011Date of Patent: December 30, 2014Assignee: Rudolph Research Analytical Inc.Inventor: Jeff A. Wagner
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Patent number: 8730462Abstract: A critical-angle refractometer which utilizes an in image of light reflected from an optical interface with a vessel containing a sample under test to determine an optical property of the sample, sample properties are evaluated to prevent improper testing of the sample. This evaluation includes establishing reflectance information associating the amount of reflection with locations in the image; and utilizing a plurality of properties of the reflectance information to determine if the vessel contains a proper sample under test.Type: GrantFiled: July 8, 2013Date of Patent: May 20, 2014Assignee: Rudolph Research AnalyticalInventor: Jeff Wagner
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Patent number: 8605271Abstract: A critical-angle refractometer which utilizes an in image of light reflected from an optical interface with a vessel containing a sample under test to determine an optical property of the sample, sample properties are evaluated to prevent improper testing of the sample. This evaluation includes establishing reflectance information associating the amount of reflection with locations in the image; and utilizing a plurality of properties of the reflectance information to determine if the vessel contains a proper sample under test.Type: GrantFiled: March 25, 2011Date of Patent: December 10, 2013Assignee: Rudolph Research Analytical Inc.Inventor: Jeff A. Wagner
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Publication number: 20130169964Abstract: A system and method for polarimetry are disclosed in which a polarimeter may include a light source for transmitting a light beam through a sample within a container; a wavelength selector configured to specify a target wavelength at which the polarization rotation of the light beam emerging from the sample will be evaluated; a polarization rotator configured to be selectively moved into and out of a path of the light beam from the light source; and a detector for obtaining a first measurement of the light beam polarization rotation with the polarization rotator outside the path of the light beam, and a second measurement of the light beam polarization rotation with the polarization rotator within the path of the light beam, with both measurements occurring at the wavelength resulting from the configuration of the wavelength selector.Type: ApplicationFiled: December 29, 2011Publication date: July 4, 2013Applicant: RUDOLPH RESEARCH ANALYTICALInventor: Jeff A. Wagner
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Patent number: 8333106Abstract: An oscillatory measurement system is disclosed that includes a visual recorder for detecting irregularities such as bubbles in a fluid to be measured. Techniques are provided for scanning the recorder across the oscillatory tube.Type: GrantFiled: March 21, 2011Date of Patent: December 18, 2012Assignee: Rudolph Research AnalyticalInventor: Jeff A. Wagner
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Publication number: 20120242981Abstract: A critical-angle refractometer which utilizes an in image of light reflected from an optical interface with a vessel containing a sample under test to determine an optical property of the sample, sample properties are evaluated to prevent improper testing of the sample. This evaluation includes establishing reflectance information associating the amount of reflection with locations in the image; and utilizing a plurality of properties of the reflectance information to determine if the vessel contains a proper sample under test.Type: ApplicationFiled: March 25, 2011Publication date: September 27, 2012Applicant: Rudolph Research AnalyticalInventor: Jeff A. Wagner
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Publication number: 20110167909Abstract: An oscillatory measurement system is disclosed that includes a visual recorder for detecting irregularities such as bubbles in a fluid to be measured. Techniques are provided for scanning the recorder across the oscillatory tube.Type: ApplicationFiled: March 21, 2011Publication date: July 14, 2011Applicant: Rudolph Research AnalyticalInventor: Jeff Wagner
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Publication number: 20110149282Abstract: A polarimeter and polarimetry method are disclosed of the type in which light polarization rotating properties of a sample are measured by interposing the sample in the path of a light beam having base plane polarization in a plane of known orientation; along the beam path, compensating or nulling the rotation introduced by the sample, and determining the optical rotational properties of the sample based on the amount of compensation introduced to the light beam. In accordance with one aspect of the present invention, the light beam is subjected to plural compensations along its path the compensations being of at least two different types. Preferably, one of the types of compensation is mechanical, introduced through a device in which polarization rotation is adjusted mechanically, and the second type of compensation is provided through a device in which polarization rotation is controlled electrically.Type: ApplicationFiled: December 18, 2009Publication date: June 23, 2011Applicant: Rudolph Research AnalyticalInventor: Jeff Wagner
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Patent number: 7908903Abstract: An oscillatory measurement system is disclosed that includes a visual recorder for detecting irregularities such as bubbles in a fluid to be measured. Techniques are provided for scanning the recorder across the oscillatory tube.Type: GrantFiled: April 8, 2008Date of Patent: March 22, 2011Assignee: Rudolph Research AnalyticalInventor: Jeff Wagner
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Patent number: 7735353Abstract: A method and apparatus for imparting oscillatory motion on a test sample is disclosed in which oscillators, preferably in tubular form, are surrounded by housings. An actuator causes deforming of the housings, and the deforming movement is linked to the oscillators.Type: GrantFiled: June 20, 2006Date of Patent: June 15, 2010Assignee: Rudolph Research AnalyticalInventor: Jeff Wagner
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Patent number: 7437909Abstract: An oscillatory measurement system is disclosed that includes a visual recorder for detecting irregularities such as bubbles in a fluid to be measured. Techniques are provided for scanning the recorder across the oscillatory tube.Type: GrantFiled: June 20, 2006Date of Patent: October 21, 2008Assignee: Rudolph Research AnalyticalInventor: Jeff Wagner
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Publication number: 20080216569Abstract: An oscillatory measurement system is disclosed that includes a visual recorder for detecting irregularities such as bubbles in a fluid to be measured. Techniques are provided for scanning the recorder across the oscillatory tube.Type: ApplicationFiled: April 8, 2008Publication date: September 11, 2008Applicant: RUDOLPH RESEARCH ANALYTICALInventor: Jeff Wagner
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Patent number: 6717665Abstract: A sample cell in a polarimeter comprises a thermally conductive body enclosing a substantially cylindrical internal volume with an insulating outer cover which leaves one face exposed for complementarily contacting a temperature controlled base plate so as to keep the sample cell at a predetermined temperature, and a means for positioning the sample cell at a predetermined position such that a measuring light beam longitudinally passes through the sample cell. The water jacket system required for the conventional cylindrical sample cells is eliminated. A cell holder for holding a cylindrical sample cell in a polarimeter comprises a heat transfer element having a concave cylindrical heat transfer surface for complementarily contacting an external cylindrical surface of the cylindrical sample cell so as to keep the sample cell at a predetermined temperature.Type: GrantFiled: March 13, 2002Date of Patent: April 6, 2004Assignee: Rudolph Research AnalyticalInventors: Jeff A. Wagner, Thomas G. Bancroft