Patents by Inventor David W. Presby
David W. Presby 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).
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Publication number: 20220177794Abstract: A biofuel pellet and an apparatus for making the pellet are provided. The biofuel pellet includes a first region of high density and a second region of low density. The higher density region burns more slowly than the low density region and helps to suspend the pellet for longer and more complete combustion.Type: ApplicationFiled: November 23, 2021Publication date: June 9, 2022Inventor: David W. Presby
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Patent number: 11021380Abstract: A module for a wastewater treatment system, for use when buried in permeable media such as sand or soil, includes a central distribution unit and a multiplicity of treatment fins in flow communication therewith. Within each fin is a lengthwise-running perforated pipe. In one kind of assembly, a treatment system module comprises a central housing has attached fins which are wrapped in spiral fashion around the central distribution unit when in a compact shipping container. In another assembly, the fins are attached to a central membrane and shipped in a container while folded, detached from the central distribution unit; and the distribution unit may be comprised of separate nested half units to be joined at the point of use. When take to a wastewater treatment site, the packed components are removed from the container and arranged for use.Type: GrantFiled: July 19, 2019Date of Patent: June 1, 2021Assignee: PRESBY PLASTICS, INCInventor: David W Presby
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Patent number: 9783439Abstract: A modular liquid waste treatment system is disclosed. In accordance with some embodiments, the system includes a central distribution unit and one or more treatment fins in flow communication therewith. The distribution unit may be configured to receive liquid waste from a given source and distribute that waste, at least in part, to one or more treatment fins. In turn, bacteria present in a given treatment fin treat the liquid waste, and the resultant treated liquid may drain from the fin to the surrounding environment. In some embodiments, a given treatment fin may include porous media providing a large surface area on which bacteria may grow to facilitate treatment. The system may be installed in and/or above the ground, and in some cases may be surrounded, at least in part, with treatment sand and/or other treatment media. The system may be used in aerobic and/or anaerobic processing of liquid waste.Type: GrantFiled: May 19, 2015Date of Patent: October 10, 2017Assignee: PRESBY PATENT TRUSTInventor: David W. Presby
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Publication number: 20170217787Abstract: A modular liquid waste treatment system is disclosed. In accordance with some embodiments, the system includes a central distribution unit and one or more treatment fins in flow communication therewith. The distribution unit may be configured to receive liquid waste from a given source and distribute that waste, at least in part, to one or more treatment fins. In turn, bacteria present in a given treatment fin treat the liquid waste, and the resultant treated liquid may drain from the fin to the surrounding environment. In some embodiments, a given treatment fin may include porous media providing a large surface area on which bacteria may grow to facilitate treatment. The system may be installed in and/or above the ground, and in some cases may be surrounded, at least in part, with treatment sand and/or other treatment media. The system may be used in aerobic and/or anaerobic processing of liquid waste.Type: ApplicationFiled: April 13, 2017Publication date: August 3, 2017Applicant: Presby Patent TrustInventor: David W. Presby
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Patent number: 9556604Abstract: A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.Type: GrantFiled: September 30, 2015Date of Patent: January 31, 2017Assignee: Presby Patent TrustInventor: David W. Presby
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Publication number: 20160017589Abstract: A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.Type: ApplicationFiled: September 30, 2015Publication date: January 21, 2016Applicant: Presby Patent TrustInventor: David W. Presby
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Patent number: 9192941Abstract: A device, method, and system for analyzing aggregate are described. An exemplary device may include a housing with one or more grading screens. Aggregate and liquid may be received by a port within the housing. The liquid and any suspended fines, after passing through the one or more grading screens and aggregate, may be received into an observation container for observing the clarity of the liquid.Type: GrantFiled: August 14, 2014Date of Patent: November 24, 2015Assignee: Presby Patent TrustInventor: David W. Presby
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Publication number: 20150329396Abstract: A modular liquid waste treatment system is disclosed. In accordance with some embodiments, the system includes a central distribution unit and one or more treatment fins in flow communication therewith. The distribution unit may be configured to receive liquid waste from a given source and distribute that waste, at least in part, to one or more treatment fins. In turn, bacteria present in a given treatment fin treat the liquid waste, and the resultant treated liquid may drain from the fin to the surrounding environment. In some embodiments, a given treatment fin may include porous media providing a large surface area on which bacteria may grow to facilitate treatment. The system may be installed in and/or above the ground, and in some cases may be surrounded, at least in part, with treatment sand and/or other treatment media. The system may be used in aerobic and/or anaerobic processing of liquid waste.Type: ApplicationFiled: May 19, 2015Publication date: November 19, 2015Applicant: Presby Patent TrustInventor: David W. Presby
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Patent number: 8999153Abstract: A liquid waste treatment system is described. The system may include a first treatment conduit, a second treatment conduit, and at least one junction pipe disposed there between. In some instances, the system may include an upper junction pipe and a lower junction pipe disposed between a first and a second treatment conduit. In one or more embodiments, the system may be arranged in a substantially linear arrangement, such as a straight trench arrangement or a serial distribution arrangement. The system may reduce the need for additional treatment conduits.Type: GrantFiled: October 12, 2012Date of Patent: April 7, 2015Assignee: Presby Patent TrustInventor: David W. Presby
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Publication number: 20140360617Abstract: A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.Type: ApplicationFiled: August 25, 2014Publication date: December 11, 2014Inventor: David W. Presby
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Publication number: 20140353217Abstract: A device, method, and system for analyzing aggregate are described. An exemplary device may include a housing with one or more grading screens. Aggregate and liquid may be received by a port within the housing. The liquid and any suspended fines, after passing through the one or more grading screens and aggregate, may be received into an observation container for observing the clarity of the liquid.Type: ApplicationFiled: August 14, 2014Publication date: December 4, 2014Inventor: David W. Presby
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Patent number: 8815094Abstract: A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.Type: GrantFiled: December 20, 2012Date of Patent: August 26, 2014Assignee: Presby Patent TrustInventor: David W. Presby
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Patent number: 8807345Abstract: A device, method, and system for analyzing aggregate are described. An exemplary device may include a housing with one or more grading screens. Aggregate and liquid may be received by a port within the housing. The liquid and any suspended fines, after passing through the one or more grading screens and aggregate, may be received into an observation container for observing the clarity of the liquid.Type: GrantFiled: February 7, 2012Date of Patent: August 19, 2014Assignee: Presby Patent TrustInventor: David W. Presby
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Patent number: 8501006Abstract: A wastewater treatment system is described. The treatment system can include an aerobic digestion system, an anaerobic digestion system, and a ventilation system.Type: GrantFiled: May 17, 2011Date of Patent: August 6, 2013Assignee: Presby Patent TrustInventor: David W. Presby
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Publication number: 20130032512Abstract: A device, method, and system for analyzing aggregate are described. An exemplary device may include a housing with one or more grading screens. Aggregate and liquid may be received by a port within the housing. The liquid and any suspended fines, after passing through the one or more grading screens and aggregate, may be received into an observation container for observing the clarity of the liquid.Type: ApplicationFiled: February 7, 2012Publication date: February 7, 2013Applicant: PRESBY PATENT TRUSTInventor: David W. Presby
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Patent number: 8342212Abstract: A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.Type: GrantFiled: May 23, 2006Date of Patent: January 1, 2013Assignee: Presby Patent TrustInventor: David W. Presby
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Publication number: 20110284477Abstract: A wastewater treatment system is described. The treatment system can include an aerobic digestion system, an anaerobic digestion system, and a ventilation system.Type: ApplicationFiled: May 17, 2011Publication date: November 24, 2011Applicant: PRESBY PATENT TRUSTInventor: David W. Presby
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Patent number: 7713414Abstract: Disclosed is a water de-contamination system, methods, and apparatus using alternating aerobic, anaerobic, and aerobic conditions, with carbon and other waste processing treatments, to remove contaminants from water. Included is an aerobic system in flow communication with an outlet from a waste tank; waste processing treatments in flow communication with liquid exiting the aerobic system and in which anaerobic conditions can be created; means for creating and maintaining anaerobic conditions either within the waste processing treatments or after fluid exits the waste processing treatments; means for return of the fluid into aerobic conditions. A fluid retaining device within which anaerobic conditions are maintained and nitrogen-containing compounds and other contaminants are processed and removed is used. Waste processing treatments are provided within or adjacent the fluid retaining device.Type: GrantFiled: August 21, 2007Date of Patent: May 11, 2010Inventor: David W. Presby
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Publication number: 20080271805Abstract: A fluid conduit with layered and partial covering material thereon. The fluid conduit may be of many forms and types and attached thereto and configured thereon covering material, in partial form and a selected number of layers. The covering of fluid conduit/conductors resulting in the creation of a novel and very effective, in functionality, of a fluid conduit/conductive system, such as a septic pipe of smooth wall, of corrugated form, of any form of cross sectional configuration including circular, elliptical, rectangular, triangular or any other geometric shape any of which will and can provide for the flow of a fluid of forms such as septic flow fluid and the like. Included herein as a part of the invention is fluid conduits produced by the means and methods of this invention. Substantially, the fluid conduit system having incorporated therein and thereon the form and layers of covering created as a consequence of the means and method of configuring such conduit included as a feature of the invention.Type: ApplicationFiled: May 23, 2006Publication date: November 6, 2008Inventor: David W. Presby
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Patent number: 7288190Abstract: Disclosed is a water de-contamination system, methods, and apparatus using alternating aerobic, anaerobic, and aerobic conditions, with carbon and other waste processing treatments, to remove contaminants from water. Included is an aerobic system in flow communication with an outlet from a waste tank; waste processing treatments in flow communication with liquid exiting the aerobic system and in which anaerobic conditions can be created; means for creating and maintaining anaerobic conditions either within the waste processing treatments or after fluid exits the waste processing treatments; means for return of the fluid into aerobic conditions. A fluid retaining device within which anaerobic conditions are maintained and nitrogen-containing compounds and other contaminants are processed and removed is used. Waste processing treatments are provided within or adjacent the fluid retaining device.Type: GrantFiled: August 20, 2004Date of Patent: October 30, 2007Inventor: David W. Presby