# US 11,077,470 B2 · Sorting system with multiple sorting devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,470 B2 - Document ID: US11077470B2 - Status: Granted - Kind: B2 - Application number: 15/536,643 - Filed: 2015-12-16 - Published: 2019-03-28 - Granted: 2021-08-03 - Earliest claimed: 2014-12-17 - Assignees: Envac Optibag AB - Applicants: Envac Optibag AB - Inventors: Christian Torang - Web page: https://patentgrep.com/patent/US11077470B2 ## CPC - B07C 5/36: Sorting apparatus characterised by the means used for distribution {(sorting according to destination B07C3/003, B07C3/02)} - B07C 5/3412: {according to a code applied to the object which indicates a property of the object, e.g. quality class, contents or incorrect indication (sorting according to size measured by light-responsive means B07C5/10; sorting according to optical properties B07C5/342; for packages B65D79/02; for information carriers G06K7/00)} - B07C 2501/0054: Sorting of waste or refuse - B07C: POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING (specially adapted for a specific purpose covered by another class, see the relevant place, e.g. A43D33/06, B23Q7/12) ## Abstract A system for sorting waste objects is disclosed. According to an aspect of the present disclosure, the system includes at least one sorting unit, in which the sorting unit is connected to at least one sensor system that identifies the waste objects. The sensor system is arranged to detect one or more waste object characteristics and is also arranged to provide a control system with a signal when a waste object of a desired type is detected. The system also includes at least one sorting conveyor that conveys the waste objects to the sorting unit in which the sorting unit is provided with two or more sorting devices that sort the waste objects. The sorting devices of the present disclosure are arranged to receive at least one signal from the control system in response to a waste object of a desired type being detected by the sensor system. ## Claims ### Claim 1 A system for sorting waste objects, the system comprises: at least one first sorting unit including a housing, wherein the first sorting unit is connected to at least one sensor system that identifies said waste objects, wherein the waste object is a container or bag, the at least one sensor system being arranged to detect at least two waste object characteristics and arranged to provide a control system that generates a signal in response to detection of a container or bag having one of the at least two waste object characteristics within the housing and indicative of the detected one of the at least two waste object characteristics, at least one first sorting conveyor that conveys said waste objects to said first sorting unit along a first substantially linear pathway, wherein said first sorting unit is provided with two or more sorting devices within the housing, the sorting devices being a pusher type comprising one of a blade, scraper, or paddle which move over the sorting conveyor, the sorting devices being positioned along the linear pathway, wherein said sorting devices are arranged to receive the signal from said control system, wherein the at least one sensor system is arranged to individually control the at least two sorting devices within said first sorting unit, and wherein the at least one sensor system is arranged to control activation of one of the at least sorting devices based on the detected one of the at least two waste object characteristics for moving an associated container or bag from the at least one first sorting conveyor, and at least one second sorting conveyor that conveys waste objects of a second desired type from said first sorting unit to a second sorting unit for processing. ### Claim 2 (depends on 1) The system as claimed in claim 1, wherein the at least one first sorting unit consists of two sorting devices. ### Claim 3 (depends on 1) The system as claimed in claim 1, wherein said container or bag is provided with said one or more waste object characteristics. ### Claim 4 (depends on 3) The system as claimed in claim 3, wherein the one or more waste object characteristics comprises any one of color, pattern or RFID-identification, or a combination thereof. ### Claim 5 (depends on 4) The system as claimed in claim 4, wherein the at least one sensor system comprises sensors arranged to detect said one or more waste object characteristics. ### Claim 6 A method for sorting waste objects, the method comprising: providing said waste objects on at least one sorting conveyor that conveys said waste objects to at least one first sorting unit along a first substantially linear pathway, wherein the at least one first sorting unit includes a housing, wherein the waste object is a container or bag, wherein said objects contain at least two waste object characteristics; detecting said at least two waste object characteristics of said waste object through at least one sensor system, arranged in connection with the at least one first sorting unit; providing a control system that generates a signal in response to detection of a container or bag having one of the at least two waste object characteristics within the housing and indicative of the detected one of the at least two waste object characteristics; providing two or more sorting devices positioned along the linear pathway and within the housing of the first sorting unit, the sorting devices being a pusher type comprising one of a blade, scraper, or paddle which move over the sorting conveyor, the sorting devices being activated by receipt of the signal by said control system, in response to said desired first object being detected, wherein the at least one sensor system is arranged to individually control the at least two sorting devices within one sorting unit; controlling, by the control system, activation of one of the at least sorting devices based on the detected one of the at least two waste object characteristics for moving an associated container or bag from the at least one first sorting conveyor; and providing at least one second sorting conveyor that conveys waste objects of a second desired type from the first sorting unit to a second sorting unit for processing. ### Claim 7 (depends on 6) The method as claimed in claim 6, wherein the at least one sensor system comprises sensors arranged to detect said at least two waste object characteristics.