Patents by Inventor David C. Johnson

David C. 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: 7156491
    Abstract: A separable key element operably secured to a printer component base for receiving a key from a printer component to be received therein. The key indicates a required characteristic of the printer component thereby allowing only compatible printer components to be installed onto the printer component base. The key element can matingly engage the printer component base in a unique configuration such that only compatible key elements can be secured to the printer component base. Moreover, the key element can include a display surface for visually identifying the required characteristic of the printer component. In a preferred embodiment, the printer component is a detachable ink reservoir and the printer component base is secured to the carriage of an inkjet printer, thereby providing an on-axis ink reservoir.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: January 2, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott D. Sturgeon, David C. Johnson
  • Patent number: 7069514
    Abstract: A model development system provides tools for developers to define reusable, object oriented components and views for collecting and displaying data from multiple sources, and for incorporating such reusable components and views into an informational model. Using the system, a developer can create a reusable component, create multiple instances of that component, and connect each such instance to one or more corresponding back-end data sources. The developer can also define one or more associated views that specify how data collected by the component from the back-end data sources is to be displayed. Many different components and views may be defined and deployed to build an informational model of a business entity, such as a business that operates processing or manufacturing plants in various locations.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: June 27, 2006
    Assignee: IndX Software Corp.
    Inventors: Jesse G. DeMesa, David C. Johnson
  • Patent number: 6969148
    Abstract: An on-axis ink reservoir that is pivotally secured to the carriage of an inkjet printer thereby defining an engaged position, in which the ink reservoir is in fluid communication with a printhead secured to the carriage, and an open position, in which the ink reservoir pivots away from the printhead to allow easy access to the printhead without the need to remove the ink reservoir from the carriage. Preferably, the ink reservoir is detachably secured to an ink-reservoir mounting portion, the printhead is detachably secured to a printhead mounting-portion, and these two mounting portions are pivotally secured together. More preferably, the ink-reservoir mounting portion includes a plurality of ink reservoirs, and the printhead mounting-portion includes a plurality of printheads. A latching mechanism is provided to operably secure the two mounting portions together in the engaged position.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: November 29, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott D. Sturgeon, Jeffrey T. Hendricks, David C. Johnson, Charles R. Steinmetz, Daniel W. Petersen
  • Patent number: 6944863
    Abstract: In a computer system a system of exchanging tokens for queue banks is created that permits a requester to directly specify which queue bank is wanted. Only the desired queue bank is withdrawn from a queue bank repository to accomplish this and no sorting or FIFO handling of queue banks is needed. The system uses a schema similar to a coat check room, where the requester is given a token when the requestor wants to deposit a queue bank into the queue bank repository. The queue bank repository returns the queue bank when the token is returned by the requester. In its most efficient form, two machine-level instructions handle the entire operation, a withdraw instruction and a deposit instruction.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: September 13, 2005
    Assignee: Unisys Corporation
    Inventors: Wayne D. Ward, David R. Johnson, David C. Johnson, Charles R. Caldarale
  • Patent number: 6827432
    Abstract: The present invention disclosure relates to a replaceable ink container for providing ink to an inkjet printing system. The inkjet printing system has a receiving station mounted to a scanning carriage. The receiving station has a fluid inlet and a pair of guide rails extending along either side of the fluid inlet. The replaceable ink container includes a fluid outlet configured for connection to the fluid inlet associated with the receiving station. Also included is a pair of outwardly extending guide rail engagement features. Each of the pair of guide rail engagement features are so disposed and arranged on the replaceable ink container for engagement with each of the pair of guide rails to guide the replaceable ink container in both horizontal and vertical directions into the receiving station.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: December 7, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Dale King, Scott D Sturgeon, David C Johnson
  • Publication number: 20040201645
    Abstract: A separable key element operably secured to a printer component base for receiving a key from a printer component to be received therein. The key indicates a required characteristic of the printer component thereby allowing only compatible printer components to be installed onto the printer component base. The key element can matingly engage the printer component base in a unique configuration such that only compatible key elements can be secured to the printer component base. Moreover, the key element can include a display surface for visually identifying the required characteristic of the printer component. In a preferred embodiment, the printer component is a detachable ink reservoir and the printer component base is secured to the carriage of an inkjet printer, thereby providing an on-axis ink reservoir.
    Type: Application
    Filed: April 30, 2004
    Publication date: October 14, 2004
    Inventors: Scott D. Sturgeon, David C. Johnson
  • Publication number: 20040172445
    Abstract: A computing workflow system has a workflow process definition contained in a workflow table as script functions. The workflow table is part of an extended database schema operating with an extended store, a workflow engine and a script engine. The novel workflow system includes a server database having a data table and an associated workflow table. A workflow extended store is communicatively coupled to the server database. A workflow engine is also communicatively coupled to the server database and to the workflow extended store. Further, a script engine is communicatively coupled to the workflow engine. The workflow table includes workflow rules and associated code to be executed by the workflow engine. Each row of the workflow table represents a workflow step. Script functions are defined in the workflow table to evaluate the condition and execute the action of each workflow step. The rules and associated code in the workflow table is both declarative and procedural.
    Type: Application
    Filed: March 8, 2004
    Publication date: September 2, 2004
    Inventors: Kaviraj Singh, Tudor Toma, David C. Johnson, Scot J. Gellock, Joseph P. Fernando, Carlos P. Gomes, Min Wei
  • Patent number: 6779874
    Abstract: A partial mounting portion cover that extends above and partially over the front portion of a chamber for operably receiving a detachable printer component therein. The cover includes a substantially planar top surface positioned over the toe-end of the detachable printer component when the printer component is fully installed on the mounting portion, such that the cover extends over the printer component only by an amount that precludes the cover from interfering with a toe-heel installation process. Accordingly, so long as the installer mounts the toe-end of the detachable printer component first, the mounting portion cover does not interfere with the installation. However, if an installer attempts to install the printer component in another manner, the cover blocks the toe-end of the printer component from entering the chamber, thereby alerting the installer of the improper installation method.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: August 24, 2004
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Scott D. Sturgeon, David C. Johnson, Lisa M. Hanson
  • Patent number: 6755516
    Abstract: The present disclosure relates to a replaceable ink container for providing ink to an inkjet printing system. The inkjet printing system has a receiving station for receiving the replaceable ink container. The replaceable ink container includes a handle extending from a trailing end of the ink container for grasping the ink container for insertion into the receiving station. Also included is a latch for securing the replaceable ink container to the receiving station. The latch has an extended position for engaging the receiving station for securing the ink container to the receiving station and a retracted position. The latch is so disposed and arranged on the ink container to be urged from the extended position to the retracted position as the handle is grasped.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: June 29, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lisa M. Hanson, Curt G. Gonzales, Dion C. Davidson, Charles R. Steinmetz, Scott D. Sturgeon, David C. Johnson, Jeffrey T. Hendricks
  • Publication number: 20040117393
    Abstract: A model development system provides tools for developers to define reusable, object oriented components and views for collecting and displaying data from multiple sources, and for incorporating such reusable components and views into an informational model. Using the system, a developer can create a reusable component, create multiple instances of that component, and connect each such instance to one or more corresponding back-end data sources. The developer can also define one or more associated views that specify how data collected by the component from the back-end data sources is to be displayed. Many different components and views may be defined and deployed to build an informational model of a business entity, such as a business that operates processing or manufacturing plants in various locations.
    Type: Application
    Filed: December 3, 2003
    Publication date: June 17, 2004
    Inventors: Jesse G. DeMesa, David C. Johnson
  • Patent number: 6729714
    Abstract: A separable key element operably secured to a printer component base for receiving a key from a printer component to be received therein. The key indicates a required characteristic of the printer component thereby allowing only compatible printer components to be installed onto the printer component base. The key element can matingly engage the printer component base in a unique configuration such that only compatible key elements can be secured to the printer component base. Moreover, the key element can include a display surface for visually identifying the required characteristic of the printer component. In a preferred embodiment, the printer component is a detachable ink reservoir and the printer component base is secured to the carriage of an inkjet printer, thereby providing an on-axis ink reservoir.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 4, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott D. Sturgeon, David C. Johnson
  • Patent number: 6700590
    Abstract: A system and method for retrieving and presenting data using class-based component and view model is disclosed. The disclosed system retrieves data of various formats, including relational data, point data and time-series data, and connects such data to class-based components and component members. Using a class based, i.e., object oriented model, it provides means for developers and users to define and modify reusable components, and means for developers and users to define and modify reusable views to present data in graphics including animation.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: March 2, 2004
    Assignee: Indx Software Corporation
    Inventors: Jesse G. DeMesa, David C. Johnson
  • Patent number: 6676426
    Abstract: An electrical connector is positioned in a biased manner relative to a receptacle upon mating. The mated electrical connector is positioned along a first positioning axis of the receptacle in predetermined electrical contact with a target circuit. The connector includes a housing that mates with the receptacle along a mating axis and is placed at a predetermined position along an orthogonal first positioning axis. The housing also defines a first-positioning-axis datum which engages the receptacle. Furthermore, the connector includes an electrically conductive contact structure mounted on the housing, and a biasing mechanism operatively coupled with the housing. The biasing mechanism acts to maintain the first-positioning-axis datum in abutment with the receptacle upon mating of the housing with the receptacle.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: January 13, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott D. Sturgeon, David C. Johnson
  • Publication number: 20030195791
    Abstract: The present invention involves a system, method and article of manufacture that first garners user input criteria necessary to analyze and communicate a redistribution of product demand whenever a new target product is added to, or an existing target product is deleted from, a product assortment. In the invention's preferred embodiment, the user is provided with a graphical user interface to facilitate acceptance of required user input criteria, and then passes such garnered information to a user selectable redistribution demand processing model, which analyzes and processes the user's input criteria to develop and communicate a demand redistribution product set for focus products affected by said target product's deletion or addition.
    Type: Application
    Filed: December 11, 2000
    Publication date: October 16, 2003
    Inventors: Matthew A. Waller, Earl F. Dulaney, Milan Milatovic, David C. Johnson
  • Publication number: 20030081088
    Abstract: The present invention disclosure relates to a replaceable ink container for providing ink to an inkjet printing system. The inkjet printing system has a receiving station mounted to a scanning carriage. The receiving station has a fluid inlet and a pair of guide rails extending along either side of the fluid inlet. The replaceable ink container includes a fluid outlet configured for connection to the fluid inlet associated with the receiving station. Also included is a pair of outwardly extending guide rail engagement features. Each of the pair of guide rail engagement features are so disposed and arranged on the replaceable ink container for engagement with each of the pair of guide rails to guide the replaceable ink container in both horizontal and vertical directions into the receiving station.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 1, 2003
    Inventors: Dale King, Scott D. Sturgeon, David C. Johnson
  • Publication number: 20030077951
    Abstract: An electrical connector configured for minimized contact with a non-target structure of a target circuit, and a printing mechanism that uses the electrical connector for conductive connection between circuit portions of the printing mechanism. The connector includes a housing for positioning the connector in conductive contact with the target circuit. An electrically conductive contact filament is mounted on the housing and includes a proximal portion extending from the housing and a contact portion for electrically contacting the target circuit. An intermediate portion is formed to circumnavigate the non-target structure and joins the proximal and distal portions.
    Type: Application
    Filed: October 19, 2001
    Publication date: April 24, 2003
    Inventors: Scott D. Sturgeon, David C. Johnson
  • Patent number: 6551148
    Abstract: An electrical connector configured for minimized contact with a non-target structure of a target circuit, and a printing mechanism that uses the electrical connector for conductive connection between circuit portions of the printing mechanism. The connector includes a housing for positioning the connector in conductive contact with the target circuit. An electrically conductive contact filament is mounted on the housing and includes a proximal portion extending from the housing and a contact portion for electrically contacting the target circuit. An intermediate portion is formed to circumnavigate the non-target structure and joins the proximal and distal portions.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: April 22, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott D. Sturgeon, David C. Johnson
  • Patent number: 6542985
    Abstract: A data processor is disclosed that executes a number of microcode instruction words. Each of the microcode instruction words has a bit field reserved to indicate which, if any, event counters are to be incremented. This enables the number of executions of a particular microcode instruction word to be counted. By simply changing the microcode bits in the bit fields of the microcode instruction words, the event counter can be programmed to count any number or pattern of microcode instruction word executions. In one embodiment, there is a one-to-one correspondence between each bit in the bit field and each event counter. In another system, the bits in the bit field are decoded to provide an address that selects selected event counters.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: April 1, 2003
    Assignee: Unisys Corporation
    Inventors: David C. Johnson, Douglas A. Fuller
  • Publication number: 20030032319
    Abstract: An electrical connector is positioned in a biased manner relative to a receptacle upon mating. The mated electrical connector is positioned along a first positioning axis of the receptacle in predetermined electrical contact with a target circuit. The connector includes a housing that mates with the receptacle along a mating axis and is placed at a predetermined position along an orthogonal first positioning axis. The housing also defines a first-positioning-axis datum which engages the receptacle. Furthermore, the connector includes an electrically conductive contact structure mounted on the housing, and a biasing mechanism operatively coupled with the housing. The biasing mechanism acts to maintain the first-positioning-axis datum in abutment with the receptacle upon mating of the housing with the receptacle.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 13, 2003
    Inventors: Scott D. Sturgeon, David C. Johnson
  • Publication number: 20030025764
    Abstract: A partial mounting portion cover that extends above and partially over the front portion of a chamber for operably receiving a detachable printer component therein. The cover includes a substantially planar top surface positioned over the toe-end of the detachable printer component when the printer component is fully installed on the mounting portion, such that the cover extends over the printer component only by an amount that precludes the cover from interfering with a toe-heel installation process. Accordingly, so long as the installer mounts the toe-end of the detachable printer component first, the mounting portion cover does not interfere with the installation. However, if an installer attempts to install the printer component in another manner, the cover blocks the toe-end of the printer component from entering the chamber, thereby alerting the installer of the improper installation method.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 6, 2003
    Inventors: Scott D. Sturgeon, David C. Johnson, Lisa M. Hanson