Patents by Inventor Lloyd A. Chapman
Lloyd A. Chapman 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: 11947279Abstract: A system for sensing material within a container includes a container having a reservoir for storing material and an impact member configured to selectively impart an impulse force on the container to cause vibration of the container. A sensor is configured to sense the vibration of the container upon the impact member imparting the impulse force on the container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of the material in the container based on the sensed vibration of the container.Type: GrantFiled: March 23, 2022Date of Patent: April 2, 2024Assignee: Lexmark International, Inc.Inventors: Alexander Lloyd Chapman, Clare Cabahug Maxino, Neilson Gutay Navarrete, Michael Todd Phillips, Scott Daniel Reeves, Daniel Lee Thomas
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Patent number: 11947282Abstract: A system for an electrophotographic image forming device includes a toner container having a reservoir for storing toner and an impact member configured to selectively impart an impulse force on the toner container to cause vibration of the toner container. A sensor is configured to sense the vibration of the toner container upon the impact member imparting the impulse force on the toner container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of toner in the reservoir based on the sensed vibration of the toner container.Type: GrantFiled: March 23, 2022Date of Patent: April 2, 2024Assignee: Lexmark International, Inc.Inventors: Alexander Lloyd Chapman, Clare Cabahug Maxino, Neilson Gutay Navarrete, Michael Todd Phillips, Scott Daniel Reeves, Daniel Lee Thomas
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Publication number: 20230305432Abstract: A system for sensing material within a container includes a container having a reservoir for storing material and an impact member configured to selectively impart an impulse force on the container to cause vibration of the container. A sensor is configured to sense the vibration of the container upon the impact member imparting the impulse force on the container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of the material in the container based on the sensed vibration of the container.Type: ApplicationFiled: March 23, 2022Publication date: September 28, 2023Inventors: ALEXANDER LLOYD CHAPMAN, CLARE CABAHUG MAXINO, NEILSON GUTAY NAVARRETE, MICHAEL TODD PHILLIPS, SCOTT DANIEL REEVES, DANIEL LEE THOMAS
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Publication number: 20230305434Abstract: A system for an electrophotographic image forming device includes a toner container having a reservoir for storing toner and an impact member configured to selectively impart an impulse force on the toner container to cause vibration of the toner container. A sensor is configured to sense the vibration of the toner container upon the impact member imparting the impulse force on the toner container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of toner in the reservoir based on the sensed vibration of the toner container.Type: ApplicationFiled: March 23, 2022Publication date: September 28, 2023Inventors: ALEXANDER LLOYD CHAPMAN, CLARE CABAHUG MAXINO, NEILSON GUTAY NAVARRETE, MICHAEL TODD PHILLIPS, SCOTT DANIEL REEVES, DANIEL LEE THOMAS
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Patent number: 11522694Abstract: The present invention is a diverse acoustical object containing a range of particles that have acoustical wave impedances that are substantially different from the binder. The particles create a substantially different reflection as an acoustic wave is scattered by the particles. A negative reflection is created when the scattered wave is from a particle that has a wave impedance that is substantially less than the binder impedance. Practically, it may be necessary to encase this material in a thin material that will withstand the fabrication process (e.g., air or silicone elastomer could be encased in glass). If the wavelength is large compared to the encasing material thickness, then the reflection will be more dependent on the interior material. A mixture of materials that generate positive as well as negative reflections within the binder would add to the complexity of the PUF.Type: GrantFiled: February 24, 2021Date of Patent: December 6, 2022Assignee: Lexmark International, Inc.Inventors: Scott Richard Castle, Alexander Lloyd Chapman, Keith Bryan Hardin
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Publication number: 20210266159Abstract: The present invention is a diverse acoustical object containing a range of particles that have acoustical wave impedances that are substantially different from the binder. The particles create a substantially different reflection as an acoustic wave is scattered by the particles. A negative reflection is created when the scattered wave is from a particle that has a wave impedance that is substantially less than the binder impedance. Practically, it may be necessary to encase this material in a thin material that will withstand the fabrication process (e.g., air or silicone elastomer could be encased in glass). If the wavelength is large compared to the encasing material thickness, then the reflection will be more dependent on the interior material. A mixture of materials that generate positive as well as negative reflections within the binder would add to the complexity of the PUF.Type: ApplicationFiled: February 24, 2021Publication date: August 26, 2021Inventors: SCOTT RICHARD CASTLE, ALEXANDER LLOYD CHAPMAN, KEITH BRYAN HARDIN
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Publication number: 20060068112Abstract: A process for recycling boron nitride paint or powder is provided. Boron nitride paint or powder is removed in an acid wash to form a wash solution. A caustic is added to the wash solution to form a neutralized wash solution. The neutralized wash solution is filtered to collect a boron nitride cake. The boron nitride cake is then washed and formed into boron nitride paint or powder.Type: ApplicationFiled: September 29, 2004Publication date: March 30, 2006Inventors: Lloyd Chapman, Cressie Holcombe
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Publication number: 20050164143Abstract: A process for continuously manufacturing boron nitride utilizing a graphite capsule/vessel container for the reaction mixture and a pusher-type of high-temperature furnace. The process comprises the steps of: a) during the preheat step: pushing the graphite capsule/vessel through hot zones such that the reacting mixture is heated uniformly throughout its cross-sectional area and is held at or below 1000° C.: b) during the ultra-high-temperature heating step: pushing the graphite capsule/vessel through hot zones such that the reacting mixture is heated uniformly throughout its cross-sectional area and is held in the range of 1600 to 2200° C.Type: ApplicationFiled: January 14, 2004Publication date: July 28, 2005Inventors: Cressie Holcombe, Lloyd Chapman, Ronald Beatty
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Publication number: 20050164005Abstract: A carbon material is formed by heat-treating a carbonaceous material in a reaction mix of oxides of boron and boron nitride in a nitrogen atmosphere to temperatures of 1600 to 2000° C. The surface of the carbonaceous material is transformed into a carbon material that is resistant to oxidation to temperatures of 900° C., enabling machined components to be utilized for weeks at that temperature. The carbon material is also stable in inert or vacuum environments to temperatures in the range of 1500 to 2000° C., enabling its use as aluminum evaporative boats and the like.Type: ApplicationFiled: January 24, 2005Publication date: July 28, 2005Inventors: Cressie Holcombe, Lloyd Chapman
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Publication number: 20050153082Abstract: A graphite capsule/vessel for producing boron nitride. The vessel has a cross-sectional area that allows reaction contents to be uniformly heated in order to yield boron nitride in a uniform consistency of crystallinity and purity and allows the reaction gaseous products to readily evolve.Type: ApplicationFiled: January 14, 2004Publication date: July 14, 2005Inventors: Cressie Holcombe, Lloyd Chapman, Ronald Beatty
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Publication number: 20050019579Abstract: A carbon material is formed by heat-treating a carbonaceous material in a reaction mix of boron oxide or its precursors and ammonia-generating phases such as melamine or its like in a nitrogen atmosphere to temperatures of 1600 to 2000° C. The surface of the carbonaceous material is transformed into a carbon material that is resistant to oxidation to temperatures of 900° C., enabling machined components to be utilized for weeks at that temperature. The carbon material also is stable in inert or vacuum environments to temperatures in the range of 1500 to 2000° C., enabling its use as aluminum evaporative boats and the like.Type: ApplicationFiled: August 17, 2004Publication date: January 27, 2005Inventors: Lloyd Chapman, Cressie Holcombe
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Patent number: 6726018Abstract: A holder for displaying in a fan formation a deck of sample swatches wherein an edge of each swatch is clearly displayed for easy viewing.Type: GrantFiled: October 4, 2002Date of Patent: April 27, 2004Assignee: Chas. Chapman CompanyInventor: Eric Lloyd Chapman
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Publication number: 20040065580Abstract: A holder for displaying in a fan formation a deck of sample swatches wherein an edge of each swatch is clearly displayed for easy viewing.Type: ApplicationFiled: October 4, 2002Publication date: April 8, 2004Applicant: Chas. Chapman CompanyInventor: Eric Lloyd Chapman
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Patent number: 6624407Abstract: An encoder including a light source for emitting light, a photodetector for detecting at least part of the light emitted by the light source, and an encoder film including a plurality of alternating bars and windows and being located between the light source and the photodetector. The encoder includes a mask including a plurality of alternating bars and windows, the mask being located between the light source and the photodetector. The encoder further includes a spacer located between the mask and the encoder film, the encoder film contacting the spacer to maintain a predetermined spacing between the mask and the encoder film.Type: GrantFiled: July 3, 2001Date of Patent: September 23, 2003Assignee: Lexmark International, Inc.Inventors: Dariush Aboonasry, Christopher Alan Adkins, Alexander Lloyd Chapman, Darell Dean Cronch, David Michael Cseledy, Edmund Hulin James, III, Michael Anthony Marra, III, Barry Baxter Stout
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Patent number: 6600151Abstract: An optical encoder assembly for an optical encoder for determining rotation of a rotatable shaft. An encoder housing is non-engageable with the shaft. A receiver plate is attached to the encoder housing, has a first side and a substantially opposing second side, and has a through hole and a window both extending from the first side to the second side, wherein the through hole is engageable with the shaft. An encoder mask is attached to the first side of the receiver plate, has a shaft hole engageable with the shaft, and has a mask grating positioned over the window. A light emitter is aligned to face the first side of the receiver plate and is positioned over the mask grating. A light detector is attached to the second side of the receiver plate and is positioned over the window.Type: GrantFiled: September 19, 2001Date of Patent: July 29, 2003Assignee: Lexmark International, Inc.Inventors: Alexander Lloyd Chapman, Adam Jude Ahne, Michael Anthony Marra, III, Christopher Alan Adkins, Barry Baxter Stout, Patrick Laurence Kroger, David Michael Cseledy
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Publication number: 20030052261Abstract: An optical encoder assembly for an optical encoder for determining rotation of a rotatable shaft. An encoder housing is non-engageable with the shaft. A receiver plate is attached to the encoder housing, has a first side and a substantially opposing second side, and has a through hole and a window both extending from the first side to the second side, wherein the through hole is engageable with the shaft. An encoder mask is attached to the first side of the receiver plate, has a shaft hole engageable with the shaft, and has a mask grating positioned over the window. A light emitter is aligned to face the first side of the receiver plate and is positioned over the mask grating. A light detector is attached to the second side of the receiver plate and is positioned over the window.Type: ApplicationFiled: September 19, 2001Publication date: March 20, 2003Inventors: Alexander Lloyd Chapman, Adam Jude Ahne, Michael Anthony Marra, Christopher Alan Adkins, Barry Baxter Stout, Patrick Laurence Kroger, David Michael Cseledy
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Patent number: 5409622Abstract: A lubricant for the topical application to objects that will contact various forms of water, e.g., liquid, snow, ice, or mixtures thereof, to reduce friction and thereby increase speed, glide and maneuverability. The lubricant consists essentially of hexagonal boron nitride and a binder of single or mixed oxides or organics, the boron nitride content (after drying) being from about 36 wt. % to about 99 wt. %. Binders of particular interest are water-based colloidal aluminum oxide and colloidal silicon dioxide. This lubricant is suitable for topical applications in a thin layer to various sports objects, such as skis, snowboards, ice skates, snowmobiles, toboggans, sleds, boats, etc., where reduced friction, and thus higher speed, glide and maneuverability is desired. Although a solid stick form (by drying or pressure-less sintering) is preferred, the lubricant can be in the form of a paste or a powder.Type: GrantFiled: February 7, 1994Date of Patent: April 25, 1995Assignee: Orpac, Inc.Inventors: Lloyd A. Chapman, Cressie E. Holcombe, Jr.
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Patent number: 4420056Abstract: A postage scale, which may also serve as a letter opener, has a substantially flat elongate body with grip means at one end thereof for holding a letter or similar article in perpendicularly depending position. The grip means preferably consists of a wide-mouthed slot termination in a bore through a central portion of the body. A plurality of ribs or equivalent balancing means is used to determine the weight of the article.Type: GrantFiled: February 22, 1982Date of Patent: December 13, 1983Inventor: Lloyd Chapman