Patents by Inventor Lloyd W. Johnson
Lloyd W. 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: 9776108Abstract: The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures which support structures also form the effluent plenum for the filtered influent.Type: GrantFiled: November 9, 2012Date of Patent: October 3, 2017Assignee: AQUA-AEROBIC SYSTEMS, INC.Inventors: Peter G. Baumann, Lloyd W. Johnson, David Smith, Eugen O. Bergmann
-
Patent number: 8387957Abstract: A downflow mixer with a gas injection device and/or a baffle plate is provided to improve performance of mixing and/or aeration in basins, lagoons or tanks, particularly as part of water or wastewater treatment.Type: GrantFiled: January 29, 2009Date of Patent: March 5, 2013Assignee: Aqua-Aerobic Systems, Inc.Inventors: Lloyd W. Johnson, Kendra A. Copley
-
Patent number: 8329045Abstract: A method for filtering water or wastewater including the steps of filtering by gravity through a stationary cloth filter media supported in a treatment basin by a structure forming an effluent plenum, and cleaning the media by backwashing.Type: GrantFiled: June 5, 2003Date of Patent: December 11, 2012Assignee: Aqua-Aerobic Systems, Inc.Inventors: Peter G. Baumann, Lloyd W. Johnson, David Smith, Eugen O. Bergmann
-
Patent number: 7993532Abstract: The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.Type: GrantFiled: January 17, 2011Date of Patent: August 9, 2011Assignee: Aqua-Aerobic Systems, Inc.Inventors: Peter G. Baumann, Lloyd W. Johnson, David Smith, Eugen O. Bergmann
-
Publication number: 20110108496Abstract: The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.Type: ApplicationFiled: January 17, 2011Publication date: May 12, 2011Applicant: AQUA-AEROBIC SYSTEMS, INC.Inventors: Peter G. Baumann, Lloyd W. Johnson, David Smith, Eugen O. Bergmann
-
Patent number: 7892421Abstract: The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.Type: GrantFiled: March 22, 2005Date of Patent: February 22, 2011Assignee: Aqua-Aerobic Systems, Inc.Inventors: Peter G. Baumann, Lloyd W. Johnson, David Smith, Eugen O. Bergmann
-
Patent number: 7871527Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.Type: GrantFiled: December 6, 2004Date of Patent: January 18, 2011Assignee: Aqua-Aerobic Systems, Inc.Inventors: David Smith, Paul A. Hughes, Lloyd W. Johnson, Peter G. Baumann
-
Publication number: 20100187701Abstract: A downflow mixer with a gas injection device and/or a baffle plate is provided to improve performance of mixing and/or aeration in basins, lagoons or tanks, particularly as part of water or wastewater treatment.Type: ApplicationFiled: January 29, 2009Publication date: July 29, 2010Inventors: Lloyd W. Johnson, Kendra A. Copley
-
Patent number: 7419595Abstract: The inventions separate the activated sludge, biochemical reaction stages of the batch treatment process of a sequencing batch reactor from the clarification and sedimentation stages by separating the locations where each process takes place. The separation may be accomplished in a variety of ways including constructing separate basins for each process, installing baffles or other partitions in a single vessel to isolate the areas where each process takes place, or other methods of process separation as are known in the art. In each process, treatment occurs through the performance of a series of operations. The operations are repeated for each batch of wastewater processed by the SBR. In a conventional SBR process, the cycle of operations for clarification and sedimentation are dependent on a preceding biochemical reaction step. However, in the present invention the clarification and sedimentation operations are independent of the biochemical reaction operations.Type: GrantFiled: January 3, 2006Date of Patent: September 2, 2008Assignee: Aqua-Aerobic Systems, Inc.Inventors: Lloyd W. Johnson, Kenneth A. Mikkelson, Dennis M. Gleason, Edward W. Lang
-
Patent number: 7014763Abstract: The inventions separate the activated sludge, biochemical reaction stages of the batch treatment process of a sequencing batch reactor from the clarification and sedimentation stages by separating the locations where each process takes place. The separation may be accomplished in a variety of ways including constructing separate basins for each process, installing baffles or other partitions in a single vessel to isolate the areas where each process takes place, or other methods of process separation as are known in the art. In each process, treatment occurs through the performance of a series of operations. The operations are repeated for each batch of wastewater processed by the SBR. In a conventional SBR process, the cycle of operations for clarification and sedimentation are dependent on a preceding biochemical reaction step. However, in the present invention the clarification and sedimentation operations are independent of the biochemical reaction operations.Type: GrantFiled: February 3, 2003Date of Patent: March 21, 2006Assignee: Aqua-Aerobic Systems, Inc.Inventors: Lloyd W. Johnson, Kenneth A. Mikkelson, Dennis M. Gleason, Edward W. Lang
-
Patent number: 6875357Abstract: A process for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. The process eliminates the need for separate basins for anaerobic and anoxic conditions, appropriate time periods for a quiescent environment for solids/liquid separation and mechanical decanter devices normally required to extract the desired effluent quality in conventional sequencing batch reactor systems.Type: GrantFiled: March 15, 2000Date of Patent: April 5, 2005Assignee: Aqua-Aerobic Systems, Inc.Inventors: Kenneth A. Mikkelson, Lloyd W. Johnson
-
Patent number: 6858140Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.Type: GrantFiled: December 26, 2002Date of Patent: February 22, 2005Assignee: Aqua-Aerobic Systems, Inc.Inventors: David Smith, Paul A. Hughes, Lloyd W. Johnson, Peter G. Baumann
-
Publication number: 20040245190Abstract: The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures which support structures also form the effluent plenum for the filtered influent.Type: ApplicationFiled: June 5, 2003Publication date: December 9, 2004Applicant: Aqua-Aerobic Systems, Inc.Inventors: Peter G. Baumann, Lloyd W. Johnson, David Smith, Eugen O. Bergmann
-
Publication number: 20040149653Abstract: The inventions separate the activated sludge, biochemical reaction stages of the batch treatment process of a sequencing batch reactor from the clarification and sedimentation stages by separating the locations where each process takes place. The separation may be accomplished in a variety of ways including constructing separate basins for each process, installing baffles or other partitions in a single vessel to isolate the areas where each process takes place, or other methods of process separation as are known in the art. In each process, treatment occurs through the performance of a series of operations. The operations are repeated for each batch of wastewater processed by the SBR. In a conventional SBR process, the cycle of operations for clarification and sedimentation are dependent on a preceding biochemical reaction step. However, in the present invention the clarification and sedimentation operations are independent of the biochemical reaction operations.Type: ApplicationFiled: February 3, 2003Publication date: August 5, 2004Inventors: Lloyd W. Johnson, Kenneth A. Mikkelson, Dennis M. Gleason, Edward W. Lang
-
Publication number: 20040124158Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.Type: ApplicationFiled: December 26, 2002Publication date: July 1, 2004Applicant: Aqua-Aerobic Systems, Inc.Inventors: David Smith, Paul A. Hughes, Lloyd W. Johnson, Peter G. Baumann
-
Patent number: 6613222Abstract: A process and apparatus for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. The process and apparatus eliminate the need for separate basins for anaerobic and anoxic conditions, appropriate time periods for a quiescent environment for solids/liquid separation and the requirement of mechanical decanter devices normally required to extract the desired effluent quality in conventional sequencing batch reactor systems.Type: GrantFiled: November 15, 2001Date of Patent: September 2, 2003Assignee: Aqua-Aerobic Systems, Inc.Inventors: Kenneth A. Mikkelson, Lloyd W. Johnson
-
Publication number: 20020117444Abstract: A process and apparatus for treating waste water using a sequencing batch reactor system in conjunction with a membrane filtration device for solids/liquid separation provides a highly efficient method and apparatus for the removal of organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. In the mix fill phase the reactor environment is controlled to provide an initial anaerobic time period for achieving phosphorous release and denitrification of oxidized nitrogen present in the reactor from the prior cycle. In the react fill phase waste water continues to enter the reactor. The reactor environment is controlled to provide alternating periods of aeration and mixing and mixing only to promote completely mixed aerobic and anoxic conditions.Type: ApplicationFiled: November 15, 2001Publication date: August 29, 2002Inventors: Kenneth A. Mikkelson, Lloyd W. Johnson
-
Patent number: 6019898Abstract: A weir assembly is mountable in a wastewater treatment tank to control liquid flow from a first liquid receptacle into a second liquid receptacle. The weir assembly includes a weir member having an upright wall section mountable between the first liquid receptacle and the second liquid receptacle, and a baffle member including a body inflatable with a gas. The wall section has an upper edge positionable with respect to an open surface of the wastewater in the first liquid receptacle to allow wastewater flow over the upper edge. The baffle member is responsive to inflation of the inflatable body such that the baffle member is movable with respect to the weir member between a first position below the upper edge to a second position adjacent the upper edge as the inflatable body is substantially inflated. When the baffle member is disposed in the first position, at least a substantial portion of the baffle member is disposed below the surface of the wastewater in the first liquid receptacle.Type: GrantFiled: June 23, 1998Date of Patent: February 1, 2000Assignee: Aqua-Aerobic Systems, Inc.Inventor: Lloyd W. Johnson