Patents by Inventor Gary R. Walter

Gary R. Walter 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).

  • Method and system for estimating gas production by a landfill or other subsurface source
    Patent number: 6611760
    Abstract: A new and useful method and system for estimating LFG generation and gas permeability in a landfill or other subsurface-gas producing body of material is provided. The gas generation rate in a portion of a landfill or other subsurface-gas producing body of material is estimated by obtaining a time history record of atmospheric pressure that is representative of atmospheric pressure at a surface boundary of the portion of the landfill or the subsurface gas producing body of material, measuring the gas pressure at least at one selected location at the landfill (or subsurface body of material) site over a time period that is included in the time history record, and using the atmospheric pressure and the measured gas pressure over the time period to estimate LFG generation rate and gas permeability of the portion of the landfill or the subsurface gas producing body of material.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: August 26, 2003
    Assignee: Hydro Geo Chem, Inc.
    Inventors: Harold W. Bentley, Gary R. Walter, Stewart J. Smith, Jinshan Tang, Christian T. Williamson
  • METHOD AND SYSTEM FOR ESTIMATING GAS PRODUCTION BY A LANDFILL OR OTHER SUBSURFACE SOURCE
    Publication number: 20030114988
    Abstract: A new and useful method and system for estimating LFG generation and gas permeability in a landfill or other subsurface-gas producing body of material is provided. The gas generation rate in a portion of a landfill or other subsurface-gas producing body of material is estimated by obtaining a time history record of atmospheric pressure that is representative of atmospheric pressure at a surface boundary of the portion of the landfill or the subsurface gas producing body of material, measuring the gas pressure at least at one selected location at the landfill (or subsurface body of material) site over a time period that is included in the time history record, and using the atmospheric pressure and the measured gas pressure over the time period to estimate LFG generation rate and gas permeability of the portion of the landfill or the subsurface gas producing body of material.
    Type: Application
    Filed: December 14, 2001
    Publication date: June 19, 2003
    Inventors: Harold W. Bentley, Gary R. Walter, Stewart J. Smith, Jinshan Tang, Christian T. Williamson
  • Weighing crate for livestock
    Patent number: 5734128
    Abstract: The present invention provides a single animal weighing apparatus having an external frame supporting by means of a support structure a longitudinally extending load bar and a floating weight crate suspended from the load bar and isolated from the external frame. The support structure of the present invention further enables the use of an auxiliary basket to weigh small animals, the basket being attached to the support structure above the external frame. The present invention further has a pair of gates each having two panels that are each hinged to the external frame and each including a scissors mechanism that is used to open the gate. The gate opening mechanism of each gate is manipulable from either end of the weighing apparatus. To facilitate movement of a weighing apparatus according to the present invention there is a truck provided that is equally attachable to either end of the apparatus.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: March 31, 1998
    Assignees: BBBB's Distributing, Inc., Tru-Test, Inc
    Inventors: Blair R. Gades, Jerry W. Gades, Gary R. Walters, Randy P. Stevens, Kent P. Savage, Randall G. Elley, Randy J. Silver