Patents by Inventor Leonard Stephens
Leonard Stephens 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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Publication number: 20240093897Abstract: An interface module configured to control a motor in an HVAC system is provided. The interface module includes a processor coupled in communication with a memory. The processor is configured to wirelessly receive configuration data from a wireless device, store the wirelessly received configuration data in the memory, determine a first operating parameter at which to operate the motor based on the configuration data and at least one signal received from a first device, and control the motor in accordance with the first operating parameter.Type: ApplicationFiled: September 16, 2022Publication date: March 21, 2024Inventors: Ryan Keith Stephens, Bryan James Stout, Jeffrey Leonard Underwood, Christopher Allen Mohalley
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Patent number: 10380096Abstract: Various embodiments herein each include at least one of systems, methods, and software for data migration, such as when migrating a database from one form to a next and as may be performed at a time of software system version migration. One example embodiment, in the form of a method, includes loading a database migration script that includes a prior class from a software system prior to an upgrade of the software system and a new class from the software system after the upgrade to the software system. The method proceeds by then calling methods of the prior class to copy database data from database tables impacted by the database migration script to a memory device and executing the database migration script. The method then calls methods of the new class to copy the database data from the memory device back to the database.Type: GrantFiled: November 30, 2016Date of Patent: August 13, 2019Assignee: NCR CorporationInventors: Gregor Leonard Stephen, Stuart Birse
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Publication number: 20180150497Abstract: Various embodiments herein each include at least one of systems, methods, and software for data migration, such as when migrating a database from one form to a next and as may be performed at a time of software system version migration. One example embodiment, in the form of a method, includes loading a database migration script that includes a prior class from a software system prior to an upgrade of the software system and a new class from the software system after the upgrade to the software system. The method proceeds by then calling methods of the prior class to copy database data from database tables impacted by the database migration script to a memory device and executing the database migration script. The method then calls methods of the new class to copy the database data from the memory device back to the database.Type: ApplicationFiled: November 30, 2016Publication date: May 31, 2018Inventors: Gregor Leonard Stephen, Stuart Birse
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Patent number: 9765084Abstract: A process for the production of a refined dianhydrosugar-containing product is disclosed. The process includes controlled continuous crystallization of the dianhydrosugar-containing product to produce a solution saturated with the dianhydrosugar. The saturated solution is mechanically separated, for example by centrifugation, and the crystalline product is washed. The only solvent used is water. The dianhydrosugar-containing product is upgraded to at least 99.8% purity and recovery is 95% or greater. Recrystallization of the dianhydrosugar of 99.8% purity results in an ultra pure product containing at least 99.99% dianhydrosugar.Type: GrantFiled: April 9, 2009Date of Patent: September 19, 2017Assignee: Iowa Corn Promotion BoardInventors: Charles Guthrie Moyers, James Kermit Withrow, John Leonard Stephens
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Publication number: 20090259056Abstract: A process for the production of a refined dianhydrosugar-containing product is disclosed. The process includes controlled continuous crystallization of the dianhydrosugar-containing product to produce a solution saturated with the dianhydrosugar. The saturated solution is mechanically separated, for example by centrifugation, and the crystalline product is washed. The only solvent used is water. The dianhydrosugar-containing product is upgraded to at least 99.8% purity and recovery is 95% or greater. Recrystallization of the dianhydrosugar of 99.8% purity results in an ultra pure product containing at least 99.99% dianhydrosugar.Type: ApplicationFiled: April 9, 2009Publication date: October 15, 2009Applicant: IOWA CORN PROMOTION BOARDInventors: Charles Guthrie Moyers, James Kermit Withrow, John Leonard Stephens
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Publication number: 20040097326Abstract: A variable ratio transmission having an input (14) and an output (21) and being of the epicyclic type involving a sun element (17, 16)), a ring element (21) and a planet carrier element (22) in each of at least first (11) and second (12) unequal co-axial epicyclic assemblies, a second rotating element (22) of the first assembly (11) and a second rotating element (22) of the second assembly (12) being constrained to rotate at a common angular velocity, and control means (25) for progessively changing the gear ratio applied to a load connected to the first rotating element (21) of the first assembly (11), characterised in that the first rotating elements (21) are unequal pairs of the same mechanical elements of the respective assemblies (11, 12) and in conjunction with respective second rotating elements (22) each represents different respective fixed gear ratios relative to the input (14) and the output (21) of the transmission, the second rotating elements (22) are unequal pairs of the same mechanical elementType: ApplicationFiled: September 16, 2003Publication date: May 20, 2004Inventor: Malcom Leonard Stephen Dean
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Patent number: 5921775Abstract: An endodontic system of shaping instruments, irrigation cannulas, filling instruments and materials designed to safely create specific tapers of root canal preparations and to clean, dry, seal, and restore them. The shaping instruments are a series of reamers, files, and handpiece burs, made of stainless steel, nickel-titanium, or other alloys, which impart several different specifically-tapered apertures in root canals. The instruments have one or more safety features to eliminate perforating curved roots, including shorter flute length as the angle of taper increases and variable sharpness along the length of the flute portion, as well as variable flute pitch along the length of the flute portion to maximize cutting efficiency and resistance to breakage, and a rounded tip to eliminate ledging. The hand instruments have a handle designed to optimize use of the instruments in apically directed, rotary cutting motions.Type: GrantFiled: May 24, 1996Date of Patent: July 13, 1999Inventor: Leonard Stephen Buchanan
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Patent number: 5897316Abstract: An endodontic system of shaping instruments, irrigation cannulas, filling instruments and materials designed to safely create specific tapers of root canal preparations and to clean, dry, seal, and restore them. The shaping instruments are a series of reamers, files, and handpiece burs, made of stainless steel, nickel-titanium, or other alloys, which impart several different specifically-tapered apertures in root canals. The instruments have one or more safety features to eliminate perforating curved roots, including shorter flute length as the angle of taper increases and variable sharpness along the length of the flute portion, as well as variable flute pitch along the length of the flute portion to maximize cutting efficiency and resistance to breakage, and a rounded tip to eliminate ledging. The hand instruments have a handle designed to optimize use of the instruments in apically directed, rotary cutting motions.Type: GrantFiled: April 28, 1994Date of Patent: April 27, 1999Inventor: Leonard Stephen Buchanan
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Patent number: 5842861Abstract: An endodontic system of shaping instruments, irrigation cannulas, filling instruments and materials designed to safely create specific tapers of root canal preparations and to clean, dry, seal, and restore them. The shaping instruments are a series of reamers, files, and handpiece burs, made of stainless steel, nickel-titanium, or other alloys, which impart several different specifically-tapered apertures in root canals. The instruments have one or more safety features to eliminate perforating curved roots, including shorter flute length as the angle of taper increases and variable sharpness along the length of the flute portion, as well as variable flute pitch along the length of the flute portion to maximize cutting efficiency and resistance to breakage, and a rounded tip to eliminate ledging. The hand instruments have a handle designed to optimize use of the instruments in apically directed, rotary cutting motions.Type: GrantFiled: May 24, 1996Date of Patent: December 1, 1998Inventor: Leonard Stephen Buchanan
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Patent number: 5836764Abstract: An endodontic system of shaping instruments, irrigation cannulas, filling instruments and materials designed to safely create specific tapers of root canal preparations and to clean, dry, seal, and restore them. The shaping instruments are a series of reamers, files, and handpiece burs, made of stainless steel, nickel-titanium, or other alloys, which impart several different specifically-tapered apertures in root canals. The instruments have one or more safety features to eliminate perforating curved roots, including shorter flute length as the angle of taper increases and variable sharpness along the length of the flute portion, as well as variable flute pitch along the length of the flute portion to maximize cutting efficiency and resistance to breakage, and a rounded tip to eliminate ledging. The hand instruments have a handle designed to optimize use of the instruments in apically directed, rotary cutting motions.Type: GrantFiled: May 24, 1996Date of Patent: November 17, 1998Inventor: Leonard Stephen Buchanan
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Patent number: 5752825Abstract: An endodontic system of shaping instruments, irrigation cannulas, filling instruments and materials designed to safely create specific tapers of root canal preparations and to clean, dry, seal, and restore them. The shaping instruments are a series of reamers, files, and handpiece burs, made of stainless steel, nickel-titanium, or other alloys, which impart several different specifically-tapered apertures in root canals. The instruments have one or more safety features to eliminate perforating curved roots, including shorter flute length as the angle of taper increases and variable sharpness along the length of the flute portion, as well as variable flute pitch along the length of the flute portion to maximize cutting efficiency and resistance to breakage, and a rounded tip to eliminate ledging. The hand instruments have a handle designed to optimize use of the instruments in apically directed, rotary cutting motions.Type: GrantFiled: May 24, 1996Date of Patent: May 19, 1998Inventor: Leonard Stephen Buchanan
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Patent number: 4478601Abstract: A fuel block containing concentrated combustibles is provided in a stackable, clean package which is readily ignited, and after an initial ignition burn, is consumed from the inside out with minimal smoke release. In the preferred form of the invention, ends and sides of the block have parallel faces, but the base is concave to permit an air entry passageway when the block is so positioned and burned on any generally flat surface. The top or opposite face is congruently convex to the bottom face permitting stacking of individual blocks both in storage and use. When stacked in combustion use, interior air passages or flues both horizontal and vertical, through the exterior faces of the individual block align to provide a "coking" action, as is also the case when burning of an individual block alone.The block is formed principally from coal mine particulates, coke particulates, etc.Type: GrantFiled: January 6, 1983Date of Patent: October 23, 1984Inventor: Leonard Stephens
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Patent number: RE39174Abstract: An endodontic system of shaping instruments, irrigation cannulas, filling instruments and materials designed to safely create specific tapers of root canal preparations and to clean, dry, seal, and restore them. The shaping instruments are a series of reamers, files, and handpiece burs, made of stainless steel, nickel-titanium, or other alloys, which impart several different specifically-tapered apertures in root canals. The instruments have one or more safety features to eliminate perforating curved roots, including shorter flute length as the angle of taper increases and variable sharpness along the length of the flute portion, as well as variable flute pitch along the length of the flute portion to maximize cutting efficiency and resistance to breakage, and a rounded tip to eliminate ledging. The hand instruments have a handle designed to optimize use of the instruments in apically directed, notary cutting motions.Type: GrantFiled: April 26, 2001Date of Patent: July 11, 2006Inventor: Leonard Stephen Buchanan