Patents by Inventor Allen P. Davis

Allen P. Davis 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: 11298680
    Abstract: A retention media for removing substances from water that includes an aggregate; at least one granular adsorbing material capable of adsorbing nutrients and metals; and a psyllium, wherein the psyllium performs as a binder to adhere the at least one granular adsorbing material to the aggregate to form a high permeability media mix is disclosed. A method of manufacturing a media mix is disclosed that includes creating a dry mixture of aggregate, at least one granular absorbing material, and a psyllium; and saturating the dry mixture with water to create a bond between the at least one granular absorbing material, and the aggregate via the psyllium thereby forming a high permeability media mix (HPMM). A method of using a media mix to reduce concentration of substances in water includes installing materials over granular adsorbing material, aggregate; and psyllium to reduce concentration of phosphorous or nitrogen or metals in the water.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 12, 2022
    Assignees: UNIVERSITY OF MARYLAND, COLLEGE PARK, PAVERGUIDE, INC.
    Inventors: Allen P. Davis, Travis Ostrom, Charles White
  • Publication number: 20190224646
    Abstract: A retention media for removing substances from water that includes an aggregate; at least one granular adsorbing material capable of adsorbing nutrients and metals; and a psyllium, wherein the psyllium performs as a binder to adhere the at least one granular adsorbing material to the aggregate to form a high permeability media mix is disclosed. A method of manufacturing a media mix is disclosed that includes creating a dry mixture of aggregate, at least one granular absorbing material, and a psyllium; and saturating the dry mixture with water to create a bond between the at least one granular absorbing material, and the aggregate via the psyllium thereby forming a high permeability media mix (HPMM). A method of using a media mix to reduce concentration of substances in water includes installing materials over granular adsorbing material, aggregate; and psyllium to reduce concentration of phosphorous or nitrogen or metals in the water.
    Type: Application
    Filed: August 14, 2017
    Publication date: July 25, 2019
    Inventors: Allen P. DAVIS, Travis OSTROM, Charles WHITE
  • Patent number: 10301191
    Abstract: A filtration system and method are provided for removing suspended solids and other affiliated pollutants from stormwater runoff and any other contaminated water. The filtration system and method utilize a filtration medium including steel slag. By improving or replacing a conventional filtration media, such as a sand filtration system, with a filtration medium including steel slag, the removal efficiency of suspended solids and affiliated pollutants is improved and the lifespan of the filtration system is lengthened.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: May 28, 2019
    Assignees: UNIVERSITY OF MARYLAND, LOW IMPACT DEVELOPMENT DESIGN GROUP, LLC, The United States of America, as represented by the Secretary of Agriculture
    Inventors: Allen P. Davis, Neil A. Weinstein, Rufus L. Chaney
  • Publication number: 20160060139
    Abstract: A filtration system and method are provided for removing suspended solids and other affiliated pollutants from stormwater runoff and any other contaminated water. The filtration system and method utilize a filtration medium including steel slag. By improving or replacing a conventional filtration media, such as a sand filtration system, with a filtration medium including steel slag, the removal efficiency of suspended solids and affiliated pollutants is improved and the lifespan of the filtration system is lengthened.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Applicants: UNIVERSITY OF MARYLAND, LOW IMPACT DEVELOPMENT DESIGN GROUP, LLC
    Inventors: Allen P. Davis, Neil A. Weinstein, Rufus L. Chaney
  • Publication number: 20130087509
    Abstract: A filtration system and method are provided for removing suspended solids and other affiliated pollutants from stormwater runoff and any other contaminated water. The filtration system and method utilize a filter having a geosynthetic material. By improving or replacing a conventional filtration system, such as a sand filtration system, with a geosynthetic material, the removal efficiency of suspended solids and affiliated pollutants is maintained or improved and the lifespan of the filtration system is lengthened due to simpler cleaning processes and a reduced need for material replacements. The filter can be a retrofit filter for fitting to existing storm drains for removing suspended solids and affiliated pollutants.
    Type: Application
    Filed: September 10, 2012
    Publication date: April 11, 2013
    Applicant: University of Maryland
    Inventors: Allen P. Davis, Ahmet H. Aydilek, David M. Ayres, Carmen Franks