Patents by Inventor Edward P. Johnson

Edward 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: 7475199
    Abstract: An incrementally-scalable file system and method. The system architecture enables file systems to be scaled by adding resources, such as additional filers and/or file servers, without requiring that the system be taken offline or being known to client applications. The system also provides for load balancing file accesses by distributing files across the various file storage resources in the system, as dictated by the relative capacities of said storage resources. The system provides one or more “virtual” file system volumes in a manner that makes it appear to client applications that all of the file system's storage space resides on the virtual volume(s), while in reality the files may be stored on many more physical volumes on the filers and/or file servers in the system.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: January 6, 2009
    Assignee: EMC Corporation
    Inventors: Jared E. Bobbitt, Jiong (Justin) Chen, Stephan A. Doll, John W. Fawcett, Marc T. Friedman, Robert C. Hickman, Edward P. Johnson, Ty Lam, Patrick Wing Sang Lau, Joseph P. Mullally, Robert J. Smith, Jeffrey C. Tanner
  • Patent number: 6049942
    Abstract: An apparatus is provided for cleaning and rejuvenating septic tank sewage systems. Where the septic tank has a drainfield associated therewith, the method comprises penetrating the ground near a drainfield lateral, and agitating the area near the drainfield lateral while simultaneously applying suction to the drainfield lateral. Accumulated scum and waste is thereby removed from the drainfield lateral. Where the septic tank system has a dry well associated therewith, the method comprises penetrating the bottom of the dry well and agitating the area underneath the dry well to form accumulated scum and waste into a froth or malt at the bottom of the dry well, and removing the froth or malt by suction. The apparatus of the present invention comprises a penetrating nozzle attached to an articulated boom assembly for penetrating the ground near a drainfield lateral or underneath a dry well to apply forced air or fluid or suction to agitate the area near the drainfield lateral or underneath the dry well.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: April 18, 2000
    Inventor: Edward P. Johnson
  • Patent number: 5788409
    Abstract: A drain field container system for use in filtering sewage water from a distribution box. A plurality of separate containers are used to receive equal amounts of sewage water from distribution pipes extending from a distribution box. Sewage water is dispensed from the distribution pipe onto a dispersal tray inside the distribution box. The dispersal tray ensures equal distribution of sewage water across a filter located below the dispersal tray and extending across a lower portion of the drain field container. Sewage water is filtered in the filter before exiting the drain field container from an outlet on the bottom thereof. The drain field containers are made of rugged waterproof materials such as fiberglass. The drain field containers have a removable top portion to allow easy servicing and maintenance. A bubble top may also be employed to prevent dirt from accumulating on top of the drain field container.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: August 4, 1998
    Assignee: Johnson Family Limited Partnership-Four
    Inventor: Edward P. Johnson
  • Patent number: 5473793
    Abstract: A method and apparatus is provided for cleaning and rejuvenating septic tank sewage systems. Where the septic tank has a drainfield associated therewith, the method comprises penetrating the ground near a drainfield lateral, and agitating the area near the drainfield lateral while simultaneously applying suction to the drainfield lateral. Accumulated scum and waste is thereby removed from the drainfield lateral. Where the septic tank system has a dry well associated therewith, the method comprises penetrating the bottom of the dry well and agitating the area underneath the dry well to form accumulated scum and waste into a froth or malt at the bottom of the dry well, and removing the froth or malt by suction. The apparatus of the present invention comprises a penetrating nozzle attached to an articulated boom assembly for penetrating the ground near a drainfield lateral or underneath a dry well to apply forced air or fluid or suction to agitate the area near the drainfield lateral or underneath the dry well.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: December 12, 1995
    Inventor: Edward P. Johnson
  • Patent number: 5383974
    Abstract: A method and apparatus is provided for cleaning and rejuvenating septic tank sewage systems. Where the septic tank has a drainfield associated therewith, the method comprises penetrating the ground near a drainfield lateral, and agitating the area near the drainfield lateral while simultaneously applying suction to the drainfield lateral. Accumulated scum and waste is thereby removed from the drainfield lateral. Where the septic tank system has a dry well associated therewith, the method comprises penetrating the bottom of the dry well and agitating the area underneath the dry well to form accumulated scum and waste into a froth or malt at the bottom of the dry well, and removing the froth or malt by suction. The apparatus of the present invention comprises a penetrating nozzle attached to an articulated boom assembly for penetrating the ground near a drainfield lateral or underneath a dry well to apply forced air or fluid or suction to agitate the area near the drainfield lateral or underneath the dry well.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: January 24, 1995
    Inventor: Edward P. Johnson