# US 12,214,358 B1 · Systems and methods for drying asphalt shingle waste > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,358 B1 - Document ID: US12214358B1 - Status: Granted - Kind: B1 - Application number: 18/503,706 - Filed: 2023-11-07 - Granted: 2025-02-04 - Earliest claimed: 2022-11-07 - Assignees: Bmic LLC - Applicants: Bmic LLC - Inventors: James A Svec; Maxwell Everett - Web page: https://patentgrep.com/patent/US12214358B1 ## CPC - B02C 19/0056: {specially adapted for specific materials not otherwise provided for} - B09B 3/50: involving radiation, e.g. electro-magnetic waves - C08L 95/00: Compositions of bituminous materials, e.g. asphalt, tar, pitch - C09D 195/00: Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch - C08L 2555/34: Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag - B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02}) - B09B: DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) ## Abstract Systems and methods for drying asphalt shingle waste are provided. A method comprises obtaining an asphalt shingle waste, exposing the asphalt shingle waste to microwaves emitted by a microwave dryer, and processing the asphalt shingle waste into a processed asphalt shingle waste. The asphalt shingle waste has a first moisture content at an inlet of the microwave dryer. The asphalt shingle waste has a second moisture content at an outlet of the microwave dryer. The second moisture content of the asphalt shingle waste is less than the first moisture content of the asphalt shingle waste. ## Claims ### Claim 1 A method comprising: obtaining an asphalt shingle waste; feeding the asphalt shingle waste at a first temperature to an inlet of a microwave dryer; exposing the asphalt shingle waste to microwaves emitted by the microwave dryer; discharging the asphalt shingle waste at a second temperature at an outlet of the microwave dryer, wherein the second temperature is a temperature of 140° F. or less; wherein a moisture content of the asphalt shingle waste at the outlet of the microwave dryer is less than a moisture content of the asphalt shingle waste at the inlet of the microwave dryer; and processing the asphalt shingle waste. ### Claim 2 (depends on 1) The method of claim 1, wherein the asphalt shingle waste at the inlet of the microwave dryer has a moisture content of 2% to 20% by weight based on a total weight of the asphalt shingle waste; wherein the asphalt shingle waste at the outlet of the microwave dryer has a moisture content of 0.1% to 2% by weight based on the total weight of the asphalt shingle waste. ### Claim 3 (depends on 1) The method of claim 1, wherein the second temperature is within 20% of the first temperature. ### Claim 4 (depends on 1) The method of claim 1, wherein the asphalt shingle waste comprises waste asphalt, limestone, granules, and impurities. ### Claim 5 (depends on 1) The method of claim 1, wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste powder. ### Claim 6 (depends on 1) The method of claim 1, wherein the processing comprises forming the asphalt shingle waste into a plurality of briquettes. ### Claim 7 (depends on 1) The method of claim 1, wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste filled coating. ### Claim 8 A method comprising: obtaining an asphalt shingle waste; feeding the asphalt shingle waste at a first temperature to an inlet of a microwave dryer; exposing the asphalt shingle waste to microwaves emitted by the microwave dryer so as to reduce a moisture content of the asphalt shingle waste; discharging the asphalt shingle waste at a second temperature at an outlet of the microwave dryer, wherein the second temperature is a temperature of 140° F. or less; wherein an average particle size of the asphalt shingle waste at the outlet of the microwave dryer is within 10% of an average particle size of the asphalt shingle waste at the inlet of the microwave dryer; and processing the asphalt shingle waste. ### Claim 9 (depends on 8) The method of claim 8, wherein the average particle size of the asphalt shingle waste at the outlet of the microwave dryer is within 5% of the average particle size of the asphalt shingle waste at the inlet of the microwave dryer. ### Claim 10 (depends on 8) The method of claim 8, wherein the second temperature is within 20% of the first temperature. ### Claim 11 (depends on 8) The method of claim 8, wherein the asphalt shingle waste comprises waste asphalt, limestone, granules, and impurities. ### Claim 12 (depends on 8) The method of claim 8, wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste powder. ### Claim 13 (depends on 8) The method of claim 8, wherein the processing comprises forming the asphalt shingle waste into a plurality of briquettes. ### Claim 14 (depends on 8) The method of claim 8, wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste filled coating. ### Claim 15 A method comprising: obtaining a plurality of briquettes, wherein the plurality of briquettes comprises an asphalt shingle waste; feeding the plurality of briquettes at a first temperature to an inlet of a microwave dryer; exposing the plurality of briquettes to microwaves emitted by the microwave dryer; and discharging the plurality of briquettes at a second temperature at an outlet of the microwave dryer, wherein the second temperature is a temperature of 140° F. or less; wherein a moisture content of the plurality of briquettes at the outlet of the microwave dryer is less than a moisture content of the plurality of briquettes at the inlet of the microwave dryer. ### Claim 16 (depends on 15) The method of claim 15, further comprising forming the plurality of briquettes into an asphalt shingle waste filled coating. ### Claim 17 (depends on 15) The method of claim 15, further comprising feeding the plurality of briquettes, an asphalt coating, and at least one filler material into a mixer; and mixing the plurality of briquettes the asphalt coating, and the at least one filler material in the mixer. ### Claim 18 (depends on 17) The method of claim 17, wherein the asphalt coating comprises at least one of an oxidized asphalt, a polymer-modified asphalt, or any combination thereof. ### Claim 19 (depends on 15) The method of claim 15, wherein the plurality of briquettes has an average dimension in a range of 0.5 inches to 2 inches. ### Claim 20 (depends on 15) The method of claim 15, wherein the moisture content of the plurality of briquettes at the outlet of the microwave dryer 30% to 99% less than the moisture content of the plurality of briquettes at the inlet of the microwave dryer.