Patents by Inventor Lee Chapman

Lee 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).

  • Patent number: 11947279
    Abstract: 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: Grant
    Filed: March 23, 2022
    Date of Patent: April 2, 2024
    Assignee: Lexmark International, Inc.
    Inventors: Alexander Lloyd Chapman, Clare Cabahug Maxino, Neilson Gutay Navarrete, Michael Todd Phillips, Scott Daniel Reeves, Daniel Lee Thomas
  • Patent number: 11947282
    Abstract: 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: Grant
    Filed: March 23, 2022
    Date of Patent: April 2, 2024
    Assignee: Lexmark International, Inc.
    Inventors: Alexander Lloyd Chapman, Clare Cabahug Maxino, Neilson Gutay Navarrete, Michael Todd Phillips, Scott Daniel Reeves, Daniel Lee Thomas
  • Patent number: 11904542
    Abstract: A platen assembly for use with an extrusion-based 3D printer includes a grid assembly comprising at least a 4×2 framework of interlocked perpendicular x direction beams and y direction beams, providing a substantially planar upper surface and a bottom surface. The platen assembly includes a platen comprising a thin metal sheet supported on the upper surface of the grid assembly and secured to the grid assembly such that the top surface provides a substantially flat build surface. The x direction beams, the y direction beams and the platen are constructed of substantially a same thermal expansion properties, and wherein the build surface of the platen has a build surface area of at least 400 square inches and maintains its flatness to within a flatness tolerance of 0.020 inches over a temperature range of at least 20 C-300 C.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: February 20, 2024
    Assignee: Stratasys, Inc.
    Inventors: Jeff Lee Chapman, Robert Skubic, Bryan Migliori, Benjamin L Braton, Patrick W. Anderson, Josh Durand, Colin Schiel
  • Publication number: 20230047325
    Abstract: The invention relates to mesodermal killer (MK) cells and their use in therapy, especially for the treatment of cancer.
    Type: Application
    Filed: January 13, 2020
    Publication date: February 16, 2023
    Inventors: Lee Chapman, Sabena Sultan
  • Patent number: 11485079
    Abstract: A z-lift and leveling assembly for leveling a platen in a heated chamber of a 3D printer includes first, second, third, and fourth z-actuators in a rectangular configuration. Each z-actuator includes a linear drive configured to supply motion in the z-direction and a mounting bracket secured to the linear drive and configured to move with the linear drive in the z-direction. The assembly includes a set of four pin couplings each associated with one of the first, second, third and fourth z-actuators. Each pin coupling includes a pivot block secured to the mounting bracket with a first pivot pin forming a first pin joint between the mounting bracket and the pivot block, where the pivot block is configured to move relative to the mounting bracket about a first pivot axis of the first pivot pin. The pivot block is secured to the platen or an arm of the platen with a second pivot pin forming a second pin joint such that the pivot block and the platen move relative to each other about a second pivot axis.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: November 1, 2022
    Assignee: Stratasys, Inc.
    Inventors: Josh Durand, Jeff Lee Chapman
  • Publication number: 20220193996
    Abstract: A z-lift and leveling assembly for leveling a platen in a heated chamber of a 3D printer includes first, second, third, and fourth z-actuators in a rectangular configuration. Each z-actuator includes a linear drive configured to supply motion in the z-direction and a mounting bracket secured to the linear drive and configured to move with the linear drive in the z-direction. The assembly includes a set of four pin couplings each associated with one of the first, second, third and fourth z-actuators. Each pin coupling includes a pivot block secured to the mounting bracket with a first pivot pin forming a first pin joint between the mounting bracket and the pivot block, where the pivot block is configured to move relative to the mounting bracket about a first pivot axis of the first pivot pin. The pivot block is secured to the platen or an arm of the platen with a second pivot pin forming a second pin joint such that the pivot block and the platen move relative to each other about a second pivot axis.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 23, 2022
    Inventors: Josh Durand, Jeff Lee Chapman
  • Publication number: 20220001613
    Abstract: A platen assembly for use with an extrusion-based 3D printer includes a grid assembly comprising at least a 4×2 framework of interlocked perpendicular x direction beams and y direction beams, providing a substantially planar upper surface and a bottom surface. The platen assembly includes a platen comprising a thin metal sheet supported on the upper surface of the grid assembly and secured to the grid assembly such that the top surface provides a substantially flat build surface. The x direction beams, the y direction beams and the platen are constructed of substantially a same thermal expansion properties, and wherein the build surface of the platen has a build surface area of at least 400 square inches and maintains its flatness to within a flatness tolerance of 0.020 inches over a temperature range of at least 20 C-300 C.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 6, 2022
    Inventors: Jeff Lee Chapman, Robert Skubic, Bryan Migliori, Benjamin L. Braton, Patrick W. Anderson, Josh Durand, Colin Schiel
  • Publication number: 20210287453
    Abstract: Controllable three-dimensional (3D) virtual dioramas in a rendered 3D environment such as a virtual reality or augmented reality environment including one or more rendered objects. 3D diorama is associated with a spatial computing content item such as a downloadable application executable by a computing device. 3D diorama assets may include visual and/or audio content and are presented with rendered 3D environment objects in a composite view, which is presented to a user through a display of computing device. 3D diorama is rotatable in composite view, and at least one 3D diorama asset at least partially occludes, or is at least partially occluded by, at least one rendered 3D environment object. 3D diorama may depict or provide a preview of a spatial computing user experience generated by the downloadable application.
    Type: Application
    Filed: March 15, 2021
    Publication date: September 16, 2021
    Applicant: MAGIC LEAP, INC.
    Inventors: Brennan Lee CHAPMAN, Michel Ian MARRACHE, Richard SILLIKER, Carlos ROQUE
  • Patent number: 8235413
    Abstract: An airbag assembly for use within a vehicle includes an airbag, an inflator configured to provide gas to the airbag, and a housing configured to retain the inflator and the airbag in position. The housing includes first and second portions configured to be separably coupled together. The second housing portion includes a second snap mechanism for engaging with a first snap mechanism located on the first housing portion. The engaged housing portions surround and retain the inflator and the airbag in position.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: August 7, 2012
    Assignee: TK Holdings Inc.
    Inventor: Stephen Lee Chapman
  • Publication number: 20110018238
    Abstract: An airbag assembly for use within a vehicle includes an airbag, an inflator configured to provide gas to the airbag, and a housing configured to retain the inflator and the airbag in position. The housing includes first and second portions configured to be separably coupled together. The second housing portion includes a second snap mechanism for engaging with a first snap mechanism located on the first housing portion. The engaged housing portions surround and retain the inflator and the airbag in position.
    Type: Application
    Filed: April 16, 2010
    Publication date: January 27, 2011
    Inventor: Stephen Lee Chapman
  • Patent number: 7409768
    Abstract: Can opener includes frame; rotating, toothed wheel cutting blade; and counterpoised drive wheel. A first, perforating relationship can provide the lid of a can with perforations about its outer boundary for draining liquids; and a second, lid boundary-releasing relationship, which is less than the first distance, can provide for the lid of the can being cut to completely sever it from the remainder of the can.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: August 12, 2008
    Inventor: Samuel Lee Chapman
  • Patent number: 7089115
    Abstract: In one aspect, the present invention relates to a method of determining the sky-view factor at a location. The method comprises the steps of receiving data from at least one global positioning satellite at the location, and comparing the data so obtained with a mathematical function. The function is derived from corresponding data obtained from reference locations at which the sky view factor is known, whereby to arrive at an approximation of the sky view factor at said location. In another aspect, the invention relates to a method for predicting the variation in temperatures over time at locations along a survey route, particularly a road network. The method comprises the steps of establishing a database for the survey route containing location specific geographical parameters, obtaining actual and forecast meteorological data and separately predicting the temperature at each location using energy balance equations.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: August 8, 2006
    Assignee: Entice Technology Limited
    Inventors: Lee Chapman, John Edward Thornes
  • Patent number: 7014218
    Abstract: A permanently attachable hose coupling for a pressurized conduit end having a generally tubular nipple and a generally cylindrical shell permanently attached to the nipple and generally surrounding the conduit end. The nipple has a longitudinal axis, first and second ends, a series of circumferential grooves located between the first and the second ends, a longitudinal through bore, and an insert portion adjacent the plurality of grooves for insertion in the conduit. Each of the series of circumferential grooves fixedly receive at least one of an inside surface, an end surface and an outside surface of the generally cylindrical shell and each of the grooves has a generally flat base portion parallel to the longitudinal axis, a first substantially vertically oriented sidewall adjacent the generally flat base portion and a second substantially vertically oriented sidewall.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: March 21, 2006
    Assignee: Parker-Hannifin
    Inventors: William C. Fisher, Charles Lee Chapman, Kenneth Paul Girod, Kenneth L. Huebner, Gregory Kreczko, Maxim Levine, Thomas B. Lininger, Joshua D. Shircliff, Sung Taek We
  • Publication number: 20050010365
    Abstract: In one aspect, the present invention relates to a method of determining the sky-view factor at a location. The method comprises the steps of receiving data from at least one global positioning satellite at the location, and comparing the data so obtained with a mathematical function. The function is derived from corresponding data obtained from reference locations at which the sky view factor is known, whereby to arrive at an approximation of the sky view factor at said location. In another aspect, the invention relates to a method for predicting the variation in temperatures over time at locations along a survey route, particularly a road network. The method comprises the steps of establishing a database for the survey route containing location specific geographical parameters, obtaining actual and forecast meteorological data and separately predicting the temperature at each location using energy balance equations.
    Type: Application
    Filed: August 31, 2002
    Publication date: January 13, 2005
    Inventors: Lee Chapman, John Thornes
  • Publication number: 20040251683
    Abstract: A permanently attachable hose coupling for a pressurized conduit end having a generally tubular nipple and a generally cylindrical shell permanently attached to the nipple and generally surrounding the conduit end. The nipple has a longitudinal axis, first and second ends, a series of circumferential grooves located between the first and the second ends, a longitudinal through bore, and an insert portion adjacent the plurality of grooves for insertion in the conduit. Each of the series of circumferential grooves fixedly receive at least one of an inside surface, an end surface and an outside surface of the generally cylindrical shell and each of the grooves has a generally flat base portion parallel to the longitudinal axis, a first substantially vertically oriented sidewall adjacent the generally flat base portion and a second substantially vertically oriented sidewall.
    Type: Application
    Filed: April 13, 2004
    Publication date: December 16, 2004
    Inventors: William C. Fisher, Charles Lee Chapman, Kenneth Paul Girod, Kenneth L. Huebner, Gregory Kreczko, Maxim Levine, Thomas B. Lininger, Joshua D. Shircliff, Sung Taek We
  • Patent number: 6080460
    Abstract: A mat comprising shorter and longer lengths of tread portions cut from recycled tires and strung on cable is specially devised for protecting small-scale ground level ecosystems from destruction by crawler track propelled heavy equipment. To prevent earth and vegetation from being ripped up when the mat is removed after being pressed into the ground by equipment operated atop it, stiffened permanent airways, rectangular in plan view, are systematically distributed throughout the main central portion of the `hoe-chucking` mat, called such by virtue of boom-mounting excavators called `hoes`, which are forbidden (by regulations) entry to certain environmentally sensitive areas unless accompanied by mats to crawl on. The same mat can be swung through the air to knock branches off trees, but cannot be used as a blasting mat, though the service duty conditions endured in the company of hoes are comparably severe.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: June 27, 2000
    Assignee: L. Lee Chapman
    Inventor: L. Lee Chapman
  • Patent number: D738614
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: September 15, 2015
    Inventor: Sue Lee Chapman
  • Patent number: D738615
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: September 15, 2015
    Inventor: Sue Lee Chapman