Patents by Inventor David Clarke

David Clarke 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).

  • Multi-body self propelled device with magnetic yaw control
    Patent number: 9968864
    Abstract: A multi-body self-propelled device can include a drive body and a coupled head. The drive body can include a spherical housing and an internal drive system within the spherical housing to propel the multi-body self-propelled device. The drive body can further include a magnet support assembly comprising a rotating portion including a plurality of magnets and a stationary portion comprising one or more magnets. The drive body can further include a yaw motor to drive the rotating portion of the magnet support assembly. The coupled head can include (i) a corresponding rotating portion comprising a plurality of magnets in magnetic interaction, through the spherical housing, with the plurality of magnets of the magnet support assembly, and (ii) a corresponding stationary portion comprising one or more magnets in magnetic interaction with the one or more magnets of the magnet support assembly.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: May 15, 2018
    Assignee: SPHERO, INC.
    Inventors: David Clarke, Douglas Webster, Judd Nutting, Miles Keeney-Ritchie, Adam Short, Ross MacGregor
  • Systems and methods for authentication of printer supply items
    Patent number: 9959493
    Abstract: Methods for authenticating printer supply items using revocation lists are disclosed. Revocation lists are updated using DNSSEC to communicate between a printer and a DNS name server. A first domain name is created containing a request for a challenge to an authentication module and sent to the DNS name server. A second domain name is created containing a response to the challenge and sent to the DNS name server. The DNS name server indicates success or failure, which is used to authenticate the printer supply item. Other systems and methods are disclosed.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: May 1, 2018
    Assignee: Lexmark international Inc.
    Inventors: Christopher Alan Adkins, James Ronald Booth, Matthew David Clarke, Graydon Randall Dodson, Joshua Scott Potter
  • Pouches with Multi-Layer Walls for Improved Durability and Protection Medical Devices
    Publication number: 20180085180
    Abstract: A flexible, sterilizable pouch includes a first wall coupled to a second wall and a cavity defined between the first wall and the second wall. The cavity is configured to receive a medical device, and the pouch is configured to seal the medical device within the cavity. At least one of the first wall and the second wall of the pouch includes two layers. Each layer is coupled to the adjacent layer such that a breach in any one layer of the multi-layered wall will not breach the seal of the pouch. A pocket may be formed between the layers of the multi-layered wall and may include a gas under pressure to inflate the corresponding wall to an inflated state.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 29, 2018
    Inventors: Joshua Hillas, David Clarke
  • Dynamic guide for a paper folding machine
    Patent number: 9878871
    Abstract: A folding device is provided for folding a sheet comprises a jaw cylinder, a folding cylinder, a paper guide, and an actuator. The jaw cylinder has a jaw, and the folding cylinder has a hold down element and a folding blade. The folding blade is movable between an extended position and a retracted position. The folding blade is in the extended positron to transfer one or more sheets to the jaw cylinder during a fold off operation, and the folding blade is in the retracted position during a collect operation. The paper guide is positioned between the folding cylinder and the jaw cylinder. The paper guide includes a static guide element and a reciprocating guide element connected to the static guide element, the reciprocating guide element movable between a retracted position and an extended position.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: January 30, 2018
    Assignee: Goss International Americas, Inc.
    Inventors: David Clarke Pollock, John James Sposato, Jr., Gerald Roger Douillard
  • Systems and methods for authentication of printer supply items
    Patent number: 9876794
    Abstract: Systems and methods for authenticating printer supply items using revocation lists are disclosed. Revocation lists are updated using DNSSEC to communicate between a printer and a DNS name server. A domain name is created containing a printer supply item serial number, a message digest, and a message authentication code. The domain name is sent to the DNS name server, and the returned IP address is used to update a revocation list. Other systems and methods are disclosed.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 23, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Christopher Alan Adkins, James Ronald Booth, Matthew David Clarke, Graydon Randall Dodson, Ellis Matthew King, Adam Jude Ahne
  • SLIP CARD FOR LONG SEALED TRAYS AND METHOD
    Publication number: 20180008363
    Abstract: A delivery system package includes a tray, a delivery system, and a slip card between the tray and the delivery system. To remove the delivery system, a pull tab of the slip card is moved to raise the slip card including the delivery system from the tray. At the same time, this moves the slip card over a lid sealing flange of the tray, considered a non-sterile surface in accordance one embodiment. Accordingly, the slip card extends over the lid sealing flange preventing contact between the delivery system and the lid sealing flange. In addition, the slip card effectively forms a ramp for sterile removal of the delivery system from the tray.
    Type: Application
    Filed: October 25, 2016
    Publication date: January 11, 2018
    Inventors: John Gallagher, David Clarke, Raymond Ryan, Jeffery Barnell
  • Systems and methods for separating and recovering rare earths
    Patent number: 9850555
    Abstract: The present application is generally directed to separation and recovery of rare earths using biomass, liposomes, and/or other materials. In some embodiments, a composition comprising rare earths is exposed to biomass, where some of the rare earths are transferred to the biomass, e.g., via absorption. The composition may then be separated from the biomass. A solution may be exposed to the biomass thereby enriching the solution in one or more rare earths, relative to other rare earths in the biomass. The solution and the biomass may then be separated, and the rare earths recovered from the solution. In some cases, this process may be repeated with different solutions, which may result in different solutions enriched in various rare earths. Similar processes may be used to separate the rare earths from thorium and uranium. Liposomes may be used instead of and/or in addition to biomass.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: December 26, 2017
    Assignee: President and Fellows of Harvard College
    Inventors: William Daley Bonificio, David Clarke
  • DEVICE AND METHOD FOR SURFACE MOUNTING OF ELECTRICAL DEVICES
    Publication number: 20170336057
    Abstract: Inventive methods and apparatus for providing a surface mounted electrical device whereby at least one stem is employed which provides both an electrical connection to a power source as well as the means for mounting. One example of such an electrical device is a ceiling surface-mount luminaire that gives the appearance of a recessed luminaire without requiring the material and cost of a recessed housing. The disclosed invention reduces product cost and increases speed and ease of installation.
    Type: Application
    Filed: November 3, 2015
    Publication date: November 23, 2017
    Inventor: BRIAN DAVID CLARKE
  • Assay device and methods
    Patent number: 9816924
    Abstract: The present invention relates to the use of amphipathic polymers to enhance lateral flow and reagent mixing on assay devices. More specifically, the invention relates to use of an amphipathic polymer in assay methods including a device for determining the concentration of lipids in blood serum or plasma.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: November 14, 2017
    Assignee: L3 Technology Limited
    Inventors: Anthony Nicholls, Laura Garcia, Mark Hudson, Gareth Jones, David Clarke
  • Assay test card
    Patent number: 9804091
    Abstract: The present invention relates to the use of surfaces that exhibit different surface energies wherein the difference in surface energies is configured to disrupt capillary laminar flow of a fluid travelling between the two surfaces. The invention further relates to the use of such surfaces in assay methods including a device utilising same.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 31, 2017
    Assignee: L3 Technology Limited
    Inventors: Anthony Nicholls, Laura Garcia, Mark Hudson, Gareth Jones, David Clarke
  • LIGHTING DEVICE
    Publication number: 20170299169
    Abstract: The invention relates to a lighting device kit of parts comprising a lamp (3) and a lamp shade (5). The lamp (3) of the lighting device comprises a light source (11) and a heat sink area (13) comprising a main heat dissipating surface (15). The lamp shade (5) of the lighting device comprises a shade structure (17) conjoined via a thermal path part with a cooling structure (21) comprising a main surface (24). In a mounted position of the lamp shade (5) and the lamp (3), the main surface (24) of the cooling structure (21) adjoins the main heat dissipating surface (15) of the heat sink area (13). The invention further relates to a lamp and a lamp shade of said lighting device kit of parts.
    Type: Application
    Filed: August 25, 2015
    Publication date: October 19, 2017
    Inventors: VINCENT STEFAN DAVID GIELEN, JAN DE GRAAF, BRIAN DAVID CLARKE
  • MULTI-BODY SELF PROPELLED DEVICE WITH INDUCTION INTERFACE POWER TRANSFER
    Publication number: 20170269589
    Abstract: A multi-body self-propelled device can include a drive body and a coupled head. The drive body can include a spherical housing, an internal drive system within the spherical housing to propel the multi-body self-propelled device, and a magnet holder coupled to the internal drive system to hold a first set of magnetic elements. The drive body can further include a first power source within the spherical housing to power the internal drive system and a first inductive interface. The coupled head can include second set of magnetic elements to establish a magnetic interaction with the first set of magnetic elements through the spherical housing. The coupled head can also include a second power source, and a second inductive interface. The multi-body self-propelled device can transfer power between the coupled head and the drive body via the first and the second inductive interfaces.
    Type: Application
    Filed: May 17, 2016
    Publication date: September 21, 2017
    Inventors: David Clarke, Prashant Luitel
  • MULTI-BODY SELF PROPELLED DEVICE WITH MAGNETIC YAW CONTROL
    Publication number: 20170266577
    Abstract: A multi-body self-propelled device can include a drive body and a coupled head. The drive body can include a spherical housing and an internal drive system within the spherical housing to propel the multi-body self-propelled device. The drive body can further include a magnet support assembly comprising a rotating portion including a plurality of magnets and a stationary portion comprising one or more magnets. The drive body can further include a yaw motor to drive the rotating portion of the magnet support assembly. The coupled head can include (i) a corresponding rotating portion comprising a plurality of magnets in magnetic interaction, through the spherical housing, with the plurality of magnets of the magnet support assembly, and (ii) a corresponding stationary portion comprising one or more magnets in magnetic interaction with the one or more magnets of the magnet support assembly.
    Type: Application
    Filed: May 17, 2016
    Publication date: September 21, 2017
    Inventors: David Clarke, Douglas Webster, Judd Nutting, Miles Keeney-Ritchie, Adam Short, Ross MacGregor
  • MULTI-BODY SELF PROPELLED DEVICE WITH MECHANICAL YAW CONTROL
    Publication number: 20170266576
    Abstract: A multi-body self-propelled device can include a drive body and a coupled head. The drive body can include a spherical housing and an internal drive system within the spherical housing to propel the multi-body self-propelled device. The drive body can further include a magnet holder coupled to the internal drive system to hold a first set of magnetic elements. The coupled head can include a base plate to hold a second set of magnetic elements to create a magnetic interaction with the first set of magnetic elements through the spherical housing. The coupled head can further include a housing structure and a yaw motor that rotates the housing structure independently in relation to the base plate and the drive body.
    Type: Application
    Filed: May 17, 2016
    Publication date: September 21, 2017
    Inventors: David Clarke, Douglas Webster, Ross MacGregor
  • Adaptive optic and acoustic devices
    Patent number: 9703019
    Abstract: According to some aspects, an adaptive lens is provided. One such adaptive lens comprises at least one fluid-filled chamber located within an optical and/or acoustic path of the lens, and at least one elastomeric and substantially optically and/or acoustically transparent membrane, located within an optical and/or acoustic path of the lens and at least partially bounding one or more of the at least one fluid-filled chambers, wherein one or more of the at least one membranes is configured such that a shape of the membrane is altered upon receipt of an electric field. Some aspects provide a method of producing a lens comprising providing at least one chamber bounded at least in part by first and second membranes, and providing a fluid into the at least one chamber such that the fluid is located within an optical and/or acoustic path of the lens.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: July 11, 2017
    Assignee: President and Fellows of Harvard College
    Inventors: Samuel Shian, Roger Diebold, David Clarke
  • Systems and Methods for Authentication of Printer Supply Items
    Publication number: 20170163640
    Abstract: Systems and methods for authenticating printer supply items using revocation lists are disclosed. Revocation lists are updated using DNSSEC to communicate between a printer and a DNS name server. A domain name is created containing a printer supply item serial number, a message digest, and a message authentication code. The domain name is sent to the DNS name server, and the returned IP address is used to update a revocation list. Other systems and methods are disclosed.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 8, 2017
    Inventors: Christopher Alan Adkins, James Ronald Booth, Matthew David Clarke, Graydon Randall Dodson, Ellis Matthew King, Adam Jude Ahne
  • Systems and Methods for Authentication of Printer Supply Items
    Publication number: 20170163641
    Abstract: Methods for authenticating printer supply items using revocation lists are disclosed. Revocation lists are updated using DNSSEC to communicate between a printer and a DNS name server. A first domain name is created containing a request for a challenge to an authentication module and sent to the DNS name server. A second domain name is created containing a response to the challenge and sent to the DNS name server. The DNS name server indicates success or failure, which is used to authenticate the printer supply item. Other systems and methods are disclosed.
    Type: Application
    Filed: March 8, 2016
    Publication date: June 8, 2017
    Inventors: Christopher Alan Adkins, James Ronald Booth, Matthew David Clarke, Graydon Randall Dodson, Joshua Scott Potter
  • ADIABATIC PHASE GATES IN PARITY-BASED QUANTUM COMPUTERS
    Publication number: 20170091649
    Abstract: Example methods and mechanisms are described herein for implementing and adiabatically operating a topological quantum computing (TQC) phase gate that complements the existing Clifford operations, and thereby allows universal quantum computation with Majorana systems. Further embodiments include a testing system for the phase gate that is feasible with Majorana zero modes and demonstrates violations of the CHSH-Bell inequality. Further, the design used for the testing of the inequality leads directly to a practical platforms for performing universal TQC with Majorana wires in which explicit braiding need never occur.
    Type: Application
    Filed: June 30, 2016
    Publication date: March 30, 2017
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: David Clarke, Jay Deep Sau, Sankar Das Sarma
  • BALANCE DEVICES
    Publication number: 20170059425
    Abstract: A balance device comprises first, second and third components. The first, second and third components include substantially cylindrical first, second and third central portions, respectively, and which are coaxial with one another. The balance device further comprises a first set of connectors for coupling the first component to the third component and a second set of connectors for coupling the second component to the third component. The connectors accommodate axial movement in response to relative axial forces between the first and second components and minimise rotational movement about the axial direction in response to relative axial torque between the first and second components.
    Type: Application
    Filed: March 31, 2015
    Publication date: March 2, 2017
    Inventor: David Clarke
  • Delivery Catheter System With Micro and Macro Movement Control
    Publication number: 20170020670
    Abstract: A tray and packaging system for a prosthetic valve delivery system permits conversion from a storage and/or shipping configuration to a set up and preparation configuration. In a first configuration, a delivery system can be supported by first and second main trays with the elongate catheter of the delivery system arranged to extend linearly from the first main tray to the second main tray, and in a second configuration, the delivery system can be supported by the first and second main trays with the elongate catheter of the delivery system turned back in a U-shaped manner with the deployment portion of the delivery system positioned to the side of the control handle portion of the delivery system.
    Type: Application
    Filed: October 5, 2016
    Publication date: January 26, 2017
    Inventors: Robert Murray, Sameer Upadhyaya, Mark Casley, Patrick Macaulay, Ak Masud, Paul Cassidy, David Clarke