Patents by Inventor Robert P. Johnson

Robert P. Johnson 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: 11074225
    Abstract: The disclosure herein describes synchronizing cached index copies at a first site with indexes of a log-structured merge (LSM) tree file system on an object storage platform at a second site. An indication that the LSM tree file system has been compacted based on a compaction process is received. A cached metadata catalog of the included parent catalog version at the first site is accessed. A set of cached index copies is identified at the first site based on the metadata of the cached metadata catalog. The compaction process is applied to the identified set of cached index copies and a compacted set of cached index copies is generated at the first site, whereby the compacted set of cached index copies is synchronized with a respective set of indexes of the plurality of sorted data tables of the LSM tree file system at the second site.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 27, 2021
    Assignee: VMware, Inc.
    Inventors: Wenguang Wang, Richard P. Spillane, Junlong Gao, Robert T. Johnson, Christos Karamanolis, Maxime Austruy
  • Patent number: 11061881
    Abstract: A buffer tree structure includes, at each internal node, a buffer having a compacted portion and an uncompacted portion. Insertion of data elements to the buffer tree can occur units called packets. A packet is initially stored in the uncompacted portion of a receiving node's buffer. When a compaction trigger condition exists, packet compaction is performed including a data element compaction operation. A buffer-emptying (flush) operation pushes the compacted packets to children nodes.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 13, 2021
    Assignee: VMWARE, INC.
    Inventors: Robert T Johnson, Abhishek Gupta, Jorge Guerra Delgado, Ittai Abraham, Richard P Spillane, Srinath Premachandran, Sandeep Rangaswamy, Kapil Chowksey
  • Publication number: 20200235382
    Abstract: Alkaline electrochemical cells are provided, wherein dissolved zinc oxide or zinc hydroxide is included at least in the free electrolyte solution, and/or solid zinc oxide or zinc hydroxide is included in the anode, so as to slow formation of a zinc oxide passivation layer on a zinc electrode. Methods for preparing such cells are also provided.
    Type: Application
    Filed: November 5, 2019
    Publication date: July 23, 2020
    Inventors: Robert P. Johnson, Robert E. Ray, JR., Weiwei Huang, Zhufang Liu, Steven J. Limmer
  • Patent number: 10578411
    Abstract: An explosive device, such as a munition or a part of a munition, has an explosive material surrounded by a casing that has one or more voids within the casing. The one or more voids define sizes and shapes of the fragments that the casing breaks into when the explosive material is detonated. The casing may be made using an additive manufacturing process, with the one or more voids fully between an inner surface of the casing and an outer surface of the casing. The voids may substantially define the size and shape of fragments making up a majority of the volume of the casing, such as 75% or more of the volume of the casing. The voids may change direction within the casing, for example branching and intersecting to define a plurality of rectangular (parallelepiped) or other shaped fragments.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 3, 2020
    Assignee: Raytheon Company
    Inventors: Gaston P. Jennett, Dmitry V. Knyazev, Robert P. Johnson, Morgan J. Bakarich, Michael A. Schurr
  • Patent number: 9995562
    Abstract: A liner includes a plurality of individual projectile cells and a web of joining material holding the plurality of projectile cells in a monolithic and continuous structure. The liner is cylindrical and formed of an additive manufacturing process.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: June 12, 2018
    Assignee: Raytheon Company
    Inventors: Gaston P. Jennett, Kim L. Christianson, Dmitry V. Knyazev, Henri Y. Kim, Robert P. Johnson
  • Publication number: 20170175234
    Abstract: A heavy metal part and method of manufacturing includes a dense alloy or a metallic composite consisting of a plurality of dense metal particles formed of a first metal and a melted metal matrix that is a continuous phase of the first metal and a second metal having a lesser density than the first metal. The metal particles are a discrete phase within the continuous phase and the heavy metal part is formed by an additive manufacturing process of a powder feedstock comprising the metal particles coated with the second metal.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Gaston P. Jennett, Robert P. Johnson, Dmitry V. Knyazev, Richard G. Ames
  • Publication number: 20170167833
    Abstract: A liner includes a plurality of individual projectile cells and a web of joining material holding the plurality of projectile cells in a monolithic and continuous structure. The liner is cylindrical and formed of an additive manufacturing process.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 15, 2017
    Inventors: Gaston P. Jennett, Kim L. Christianson, Dmitry V. Knyazev, Henri Y. Kim, Robert P. Johnson
  • Patent number: 9506192
    Abstract: A doctor blade cartridge for use in a doctor blade holder is disclosed. The doctor blade cartridge is for receiving a doctor blade, and includes at least one blade supporting member, wherein the blade supporting member is sufficiently stiff to support the doctor blade and includes load indication means for providing a signal indicative of at least one of blade supporting member strain and blade supporting member deflection.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: November 29, 2016
    Assignee: Kadant, Inc.
    Inventors: Robert P. Johnson, Allen Brauns
  • Publication number: 20160178336
    Abstract: An explosive device, such as a munition or a part of a munition, has an explosive material surrounded by a casing that has one or more voids within the casing. The one or more voids define sizes and shapes of the fragments that the casing breaks into when the explosive material is detonated. The casing may be made using an additive manufacturing process, with the one or more voids fully between an inner surface of the casing and an outer surface of the casing. The voids may substantially define the size and shape of fragments making up a majority of the volume of the casing, such as 75% or more of the volume of the casing. The voids may change direction within the casing, for example branching and intersecting to define a plurality of rectangular (parallelepiped) or other shaped fragments.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Gaston P. Jennett, Dmitry V. Knyazev, Robert P. Johnson, Morgan J. Bakarich, Michael A. Schurr
  • Publication number: 20150075928
    Abstract: A self-compensating tube assembly is disclosed for use in a doctor blade holder. The self-compensating tube assembly includes a tube including a membrane that encloses a liquid with a substantially invariable bulk modulus of elasticity, density and viscosity; and chatter responsive for providing any of monitoring means of blade chatter through pressure, damping of blade chatter, and minimizing blade chatter.
    Type: Application
    Filed: April 28, 2014
    Publication date: March 19, 2015
    Applicant: Kadant Inc.
    Inventors: Robert P. Johnson, David Leeman, Allen Brauns
  • Publication number: 20150075742
    Abstract: A doctor blade cartridge for use in a doctor blade holder is disclosed. The doctor blade cartridge is for receiving a doctor blade, and includes at least one blade supporting member, wherein the blade supporting member is sufficiently stiff to support the doctor blade and includes load indication means for providing a signal indicative of at least one of blade supporting member strain and blade supporting member deflection.
    Type: Application
    Filed: April 28, 2014
    Publication date: March 19, 2015
    Applicant: Kadant Inc.
    Inventors: Robert P. Johnson, Allen Brauns
  • Patent number: 8695578
    Abstract: Some embodiments relate to a system and method for delivering a projectile toward a target. The system includes a launcher and a propulsion system positioned within the launcher. The propulsion system includes a gas generator that produces enough gas within a certain period of time to direct the projectile from the launcher toward the target. The system for delivering a projectile may further include a targeting system that collects data regarding the location of the target. In addition, the launcher may include a venting system that exhausts a particular amount of gas from the launcher in order to direct the projectile from the launcher at a desired velocity based on data received from the targeting system.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 15, 2014
    Assignee: Raytheon Company
    Inventors: Thomas A. Olden, Robert P. Johnson
  • Patent number: 8550005
    Abstract: Embodiments of a non-lethal delivery canister, a bomber/perpetrator threat-mitigation system, and methods of mitigating bomber and perpetrator threats are generally described herein. In some embodiments, the non-lethal delivery canister may include a shell, a plastic-fabric liner within the shell to hold the shell together, and an entrapment device within the liner. The shell may be configured to break away and disintegrate after launch and prior to target impact to help ensure non-lethality. In some embodiments, the delivery canister may include an exhaust-gas generator (EGG) to generate a high-pressure gas, and an exhaust-gas director within the liner to direct the high-pressure gas generated by the EGG into the liner cause the entrapment device to expel.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: October 8, 2013
    Assignee: Raytheon Company
    Inventors: Thomas A. Olden, Oscar Kenneth Ohanian, Damian C. Athey, Robert P. Johnson
  • Patent number: 8337667
    Abstract: A doctoring system is disclosed for cleaning a moving surface in a papermaking machine, and the doctoring system includes a doctor blade and fluid assist system. The doctor blade is coupled to a doctor blade holder, and the doctor blade holder is coupled to a doctor-back. The fluid assist system is for providing a fluid under positive pressure that is higher than atmospheric pressure. The fluid is directed in a direction generally opposite a direction of movement of the moving surface such that fluid of high momentum is provided to impinge on water resident within the moving surface and adjacent a leading edge of the doctor blade during movement of the moving surface.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: December 25, 2012
    Assignee: Kadant, Inc.
    Inventors: Robert P. Johnson, David Leeman, Allen J. Brauns
  • Patent number: 8337666
    Abstract: A doctoring system is disclosed for a papermaking machine wherein the doctoring system includes a doctor blade and a fluid assist means. The doctor blade is coupled to a doctor blade holder, and is for cleaning a moving surface. The doctor blade holder is coupled to a doctor-back. The fluid assist means is for providing a fluid under positive pressure that is higher than atmospheric pressure and is directed in a direction generally along a direction of movement of the moving surface such that a negative pressure that is lower than atmospheric pressure develops in a negative pressure zone adjacent the moving surface and a following surface of the doctor blade during movement of the moving surface.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: December 25, 2012
    Assignee: Kadant, Inc.
    Inventors: Robert P. Johnson, David Leeman, Allen J. Brauns
  • Publication number: 20120298088
    Abstract: Some embodiments relate to a system and method for delivering a projectile toward a target. The system includes a launcher and a propulsion system positioned within the launcher. The propulsion system includes a gas generator that produces enough gas within a certain period of time to direct the projectile from the launcher toward the target. The system for delivering a projectile may further include a targeting system that collects data regarding the location of the target. In addition, the launcher may include a venting system that exhausts a particular amount of gas from the launcher in order to direct the projectile from the launcher at a desired velocity based on data received from the targeting system.
    Type: Application
    Filed: December 22, 2011
    Publication date: November 29, 2012
    Applicant: Raytheon Company
    Inventors: Thomas A. Olden, Robert P. Johnson
  • Patent number: 8318350
    Abstract: An alkaline electrochemical cell is provided which efficiently utilizes active materials within the cell to achieve enhanced cost efficiency. The electrochemical cell includes a container defining a sealed volume and an anode and cathode disposed in the sealed volume of the container. The cathode includes manganese dioxide and the anode includes zinc. A ratio of zinc weight to anode volume is less than 1.8. An alkaline electrolyte is disposed in the container in contact with the anode and cathode, and water is disposed within the container. A weight ratio of water to manganese dioxide is greater than 0.28, and a weight ratio of water to zinc is greater than 0.65.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 27, 2012
    Assignee: Eveready Battery Company, Inc.
    Inventor: Robert P. Johnson
  • Patent number: 8210346
    Abstract: A munitions container includes an inner container and an outer container formed of a fibrous material. A form is positioned within the inner container and receives munitions. The outer container is placed on a rigid baseplate.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: July 3, 2012
    Assignees: Raytheon Company, Warwick Mills, Inc.
    Inventors: Robert P. Johnson, Charles A. Howland, Jay A. Stern
  • Patent number: 8186276
    Abstract: Embodiments of entrapment systems and apparatuses are generally described herein. Other embodiments may be described and claimed. In one embodiment, an entrapment apparatus is provided. This entrapment apparatus comprises a casing and a piece of multilayered fabric packed into the casing. The piece of multilayered fabric, when deployed, is configured to wrap around a person having an explosive device and configured to contain packed metal projectiles from an explosion of the explosive device.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: May 29, 2012
    Assignees: Raytheon Company, Warwick Mills, Inc.
    Inventors: Thomas A. Olden, Robert P. Johnson, Charles A. Howland
  • Publication number: 20120129044
    Abstract: An alkaline electrochemical cell is provided which efficiently utilizes active materials within the cell to achieve enhanced cost efficiency. The electrochemical cell includes a container defining a sealed volume and an anode and cathode disposed in the sealed volume of the container. The cathode includes manganese dioxide and the anode includes zinc. A ratio of zinc weight to anode volume is less than 1.8. An alkaline electrolyte is disposed in the container in contact with the anode and cathode, and water is disposed within the container. A weight ratio of water to manganese dioxide is greater than 0.28, and a weight ratio of water to zinc is greater than 0.65.
    Type: Application
    Filed: January 30, 2012
    Publication date: May 24, 2012
    Applicant: EVEREADY BATTERY COMPANY, INC.
    Inventor: Robert P. Johnson