Patents Assigned to Shingle Resource Recycling, LLC
  • Patent number: 11718793
    Abstract: Method and apparatus to facilitate recycling of at least one fraction of bitumen-containing materials. This can be accomplished by dissolving the at least one fraction, for example, maltenes or asphaltenes in roofing shingles, into at least one solvent. In one aspect, the apparatus comprises a dissolution vessel, a tumbler positioned therein, and at least one solvent distributor. The tumbler is configured to facilitate wetting the bitumen-containing materials with solvent. In a second aspect, a system comprises the apparatus, a solid-liquid separator, for example, a vibratory screen, and at least one solvent-fraction separator, for example, a flash drum. The at least one solvent can comprise one or more solvents useful to extract the at least one fraction. In a third aspect, a first fraction is extracted from the bitumen-containing materials with a first solvent composition, then a second fraction is extracted from the remaining bitumen-containing materials with a second solvent composition.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: August 8, 2023
    Assignee: Shingle Resource Recycling, LLC
    Inventors: Robert William Palmer, Stephen Woodson Craig, David Woodson Craig, Randell Gween Shelton, Jr.
  • Patent number: 10695769
    Abstract: Method and apparatus to facilitate recycling of at least one fraction of bitumen-containing materials. This can be accomplished by dissolving the at least one fraction, for example, maltenes or asphaltenes in roofing shingles, into at least one solvent. In one aspect, the apparatus comprises a dissolution vessel, a tumbler positioned therein, and at least one solvent distributor. The tumbler is configured to facilitate wetting the bitumen-containing materials with solvent. In a second aspect, a system comprises the apparatus, a solid-liquid separator, for example, a vibratory screen, and at least one solvent-fraction separator, for example, a flash drum. The at least one solvent can comprise one or more solvents useful to extract the at least one fraction. In a third aspect, a first fraction is extracted from the bitumen-containing materials with a first solvent composition, then a second fraction is extracted from the remaining bitumen-containing materials with a second solvent composition.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: June 30, 2020
    Assignee: Shingle Resource Recycling, LLC
    Inventors: Robert William Palmer, Stephen Woodson Craig, David Woodson Craig, Randell Gween Shelton, Jr.
  • Patent number: 10619104
    Abstract: Method and apparatus to facilitate recycling of at least one fraction of bitumen-containing materials. This can be accomplished by dissolving the at least one fraction, for example, maltenes or asphaltenes in roofing shingles, into at least one solvent. In one aspect, the apparatus comprises a dissolution vessel, a tumbler positioned therein, and at least one solvent distributor. The tumbler is configured to facilitate wetting the bitumen-containing materials with solvent. In a second aspect, a system comprises the apparatus, a solid-liquid separator, for example, a vibratory screen, and at least one solvent-fraction separator, for example, a flash drum. The at least one solvent can comprise one or more solvents useful to extract the at least one fraction. In a third aspect, a first fraction is extracted from the bitumen-containing materials with a first solvent composition, then a second fraction is extracted from the remaining bitumen-containing materials with a second solvent composition.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 14, 2020
    Assignee: Shingle Resource Recycling, LLC
    Inventors: Robert William Palmer, Stephen Woodson Craig, David Woodson Craig, Randell Gween Shelton, Jr.