Patents by Inventor David G. Nelson

David G. Nelson 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: 10474067
    Abstract: An example developer unit includes a developer roller. The developer unit also includes a set of electrodes proximate to the developer roller. The set of electrodes form a cavity. The developer unit includes an inlet to the cavity. The inlet is to receive printing fluid. The developer unit includes an insert in the inlet. The insert is to distribute the printing fluid evenly in the cavity.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 12, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Sabo, Eric G. Nelson
  • Patent number: 10309381
    Abstract: A submersible well pump assembly has a pump housing with a pump discharge on upper end. A pump barrel is located within the pump housing, defining an annular passage between the barrel and the pump housing. A plunger is reciprocally carried in the barrel. A motor mounted below the pump housing and operatively couples to the plunger causes the plunger to reciprocate between an upstroke and a down-stroke. A valve and porting arrangement directs well fluid in the barrel below the plunger into the annular passage and out the discharge during a down stroke of the plunger. The valve and porting arrangement admits well fluid into the barrel below the plunger during the up stroke of the plunger. A connecting rod extends between the motor and the plunger. The connecting rod is in tension during the down-stroke.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 4, 2019
    Assignee: Baker Hughes, a GE Company, LLC
    Inventors: Carroll Scott DeArman, Carlos A. Prieto, Gary L. Williams, David L. Garrett, Shawn N. Gunter, Nathan G. Nelson
  • Publication number: 20190163635
    Abstract: Embodiments are provided for deferring allocation of storage for segments. The method includes receiving, at a first moment in time, a request to allocate a first segment within a memory. Information corresponding to the first segment is stored in a first entry in a hash table, and memory is allocated for the first segment. Information about the first segment is returned to an entity that requested the allocation of the first segment, where the first segment is not allocated auxiliary storage until predefined criteria are satisfied. At a second moment in time, upon receiving an indication to deallocate the first segment, memory corresponding to the first segment is deallocated, where the first segment is never allocated auxiliary storage and the first entry in the hash table is deleted.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Inventors: William A. BROWN, Michael CORRIGAN, Kevin C. GRIFFIN, Glen W. NELSON, David G. CARLSON
  • Patent number: 8038157
    Abstract: An ice skate strip-blade holder that provides a means to remove, replace, tension, and maintain tension in a strip-blade fastened and tensioned on the holder. In a preferred embodiment, the strip-blade holder assembly includes a front segment fixed to the skate plastic superstructure; a latched, pivoting rear segment arranged to apply and maintain tension in the strip-blade. In a preferred embodiment, the pivot and latch are positioned such that the pivot carries the majority of the tensile load maintained in the strip-blade and the latch carries a minor component of this tensile load. This arrangement provides for easy latch release. The latch provides release of the rear segment for subsequent pivoting and unhooking of the strip-blade for replacement.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: October 18, 2011
    Inventors: Douglas H. Wylie, David G. Nelson
  • Publication number: 20110137587
    Abstract: The present invention at directed to systems and methods for monitoring a conveyor having a plurality of rollers spaced along the conveyer for supporting a conveyer belt. The system includes a plurality of roller monitors and a remote monitor. The roller monitors are located at the rollers, each of the roller monitors having sensors for measuring physical parameters of the rollers and generating measurement data indicative of the current values of the physical parameters, a roller processor connected to the sensors, the roller processor operable to receive the measurement data from the sensors, a roller data storage device connected to the roller processor operable to store the measurement data, a roller communication device connected to the roller processor operable to transmit the measurement data to a remote monitor. The remote monitor is operable to receive the measurement data to generate maintenance information for each of the rollers based on the measurement data.
    Type: Application
    Filed: June 9, 2010
    Publication date: June 9, 2011
    Applicant: TCA Technologies Inc.
    Inventors: Stephen M. Rothlisberger, David G. Nelson
  • Publication number: 20110057399
    Abstract: An ice skate strip-blade holder that provides a means to remove, replace, tension, and maintain tension in a strip-blade fastened and tensioned on the holder. In a preferred embodiment, the strip-blade holder assembly includes a front segment fixed to the skate plastic superstructure; a latched, pivoting rear segment arranged to apply and maintain tension in the strip-blade. In a preferred embodiment, the pivot and latch are positioned such that the pivot carries the majority of the tensile load maintained in the strip-blade and the latch carries a minor component of this tensile load. This arrangement provides for easy latch release. The latch provides release of the rear segment for subsequent pivoting and unhooking of the strip-blade for replacement.
    Type: Application
    Filed: July 13, 2010
    Publication date: March 10, 2011
    Inventors: Douglas H. WYLIE, David G. NELSON
  • Patent number: 7758053
    Abstract: An ice skate strip-blade holder that provides a means to remove, replace, tension, and maintain tension in a strip-blade fastened and tensioned on the holder. In a preferred embodiment, the strip-blade holder assembly includes a front segment fixed to the skate plastic superstructure; a latched, pivoting rear segment arranged to apply and maintain tension in the strip-blade. In a preferred embodiment, the pivot and latch are positioned such that the pivot carries the majority of the tensile load maintained in the strip-blade and the latch carries a minor component of this tensile load. This arrangement provides for easy latch release. The latch provides release of the rear segment for subsequent pivoting and unhooking of the strip-blade for replacement.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: July 20, 2010
    Inventors: Douglas H. Wylie, David G. Nelson
  • Patent number: 7528722
    Abstract: A package delivery notification system and method notifies package recipients of a package's arrival. The method-enabling system comprises a package, a package recipient, a package carrier, first and second wireless communications devices, and a recipient setting. The package carrier brings the package and the first wireless communications device to within a delivery distance relative to the recipient setting. The first wireless communications device and the delivery distance enable data transmission to the second wireless communications device located at the recipient setting. The package carrier transmits a package-delivery message to the second communications device, which device receives and displays the package-delivery message for notifying the package recipient of the package's arrival.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: May 5, 2009
    Inventor: David G. Nelson
  • Publication number: 20080061966
    Abstract: A package delivery notification system and method notifies package recipients of a package's arrival. The method-enabling system comprises a package, a package recipient, a package carrier, first and second wireless communications devices, and a recipient setting. The package carrier brings the package and the first wireless communications device to within a delivery distance relative to the recipient setting. The first wireless communications device and the delivery distance enable data transmission to the second wireless communications device located at the recipient setting. The package carrier transmits a package-delivery message to the second communications device, which device receives and displays the package-delivery message for notifying the package recipient of the package's arrival.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 13, 2008
    Inventor: David G. Nelson
  • Patent number: 6991693
    Abstract: An apparatus secures ventilation cloth to a screen frame. A screen frame is oriented in an approximately vertical position. The screen frame has a plurality of segments. Each segment has a mounting surface on a face thereof. At least one of said segments has adhesive on the mounting surface thereof. A ventilation cloth is hung across the mounting surface of said one segment. The adhesive in said one of the segments is melted. The ventilation cloth is inserted in the adhesive across a length of said one of the segments.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: January 31, 2006
    Assignee: Saint-Gobain BayForm America, Inc.
    Inventors: Douglas H. Wylie, John A. Walker, David G. Nelson, Saj Ravindran
  • Publication number: 20030029546
    Abstract: An apparatus secures ventilation cloth to a screen frame. A screen frame is oriented in an approximately vertical position. The screen frame has a plurality of segments. Each segment has a mounting surface on a face thereof. At least one of said segments has adhesive on the mounting surface thereof. A ventilation cloth is hung across the mounting surface of said one segment. The adhesive in said one of the segments is melted. The ventilation cloth is inserted in the adhesive across a length of said one of the segments.
    Type: Application
    Filed: February 22, 2002
    Publication date: February 13, 2003
    Inventors: Douglas H. Wylie, John A. Walker, David G. Nelson, Saj Ravindran
  • Patent number: D355874
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: February 28, 1995
    Inventor: David G. Nelson