# US 7,744,667 B2 · Cyclone separating apparatus for a vacuum cleaner > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,744,667 B2 - Document ID: US7744667B2 - Status: Granted - Kind: B2 - Application number: 11/892,971 - Filed: 2007-08-29 - Published: 2008-08-07 - Granted: 2010-06-29 - Earliest claimed: 2007-02-05 - Assignees: Samsung Gwangju Electronics Co., Ltd. - Inventors: Jang-keun Oh; Min-ha Kim - Web page: https://patentgrep.com/patent/US7744667B2 ## CPC - A47L 9/1625: {for series flow} - A47L 9/1641: {for parallel flow} - A47L 9/165: {Construction of inlets} - A47L 9/1683: {Dust collecting chambers; Dust collecting receptacles} - Y10S 55/03: Vacuum cleaner - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A cyclone separating apparatus for a vacuum cleaner includes a first cyclone having an inclined part and adapted for separating dust and air; a first dust chamber adapted to be disposed substantially around the first cyclone and to be in fluid communication with the first cyclone; at least one second cyclone for separating dust and air adapted to be disposed above the first cyclone and to be in fluid communication with the first cyclone; and a second dust chamber adapted to be in disposed within the first cyclone and to be in fluid communication with the second cyclone. ## Claims ### Claim 1 A cyclone separating apparatus for a vacuum cleaner comprising: a first cyclone having an inclined part and adapted for separating dust and air; a first dust chamber adapted to be disposed substantially around the first cyclone and to be in fluid communication with the first cyclone; at least one second cyclone for separating dust and air adapted to be disposed above the first cyclone and to be in fluid communication with the first cyclone; and a second dust chamber adapted to be in disposed within the first cyclone and to be in fluid communication with the second cyclone. ### Claim 2 (depends on 1) The cyclone separating apparatus of claim 1, wherein a lower portion of the at least one second cyclone is adapted to be spaced apart from an upper portion of the first cyclone. ### Claim 3 (depends on 1) The cyclone separating apparatus of claim 1, wherein the at least one second cyclone is adapted to be disposed to partly extend into the first cyclone. ### Claim 4 (depends on 1) The cyclone separating apparatus of claim 1 further comprising a housing adapted to substantially enclose the at least one second cyclone and to be in fluid communication with the first cyclone and the at least one second cyclone. ### Claim 5 (depends on 1) The cyclone separating apparatus of claim 1, wherein the at least one second cyclone includes an air entering part formed in a substantially helical shape. ### Claim 6 (depends on 1) The cyclone separating apparatus of claim 1, wherein the at least one second cyclone includes an air entering part formed in a direction tangential to an upper portion of the second cyclone. ### Claim 7 (depends on 1) The cyclone separating apparatus of claim 1 further comprising a dust guide member adapted to be disposed between the at least one second cyclone and the second dust chamber. ### Claim 8 (depends on 7) The cyclone separating apparatus of claim 7, wherein the dust guide member is formed in a substantially conical shape. ### Claim 9 A cyclone separating apparatus for a vacuum cleaner comprising: a first cyclone unit including, a first cyclone having an air entering part disposed at a lower portion of the first cyclone and an air discharging part disposed at an upper portion of the first cyclone, a first dust chamber adapted to wrap around the first cyclone with a space formed therein to collect the dust discharged from the first cyclone, and a second dust chamber adapted to be disposed in the first cyclone; a second cyclone unit disposed above the first cyclone unit, and including, at least one second cyclone adapted to be disposed above the first cyclone unit, a dust guide member adapted to be disposed at a bottom end of the at least one second cyclone in fluid communication with the second dust chamber, and a housing adapted to substantially enclose the at least one second cyclone; and an upper cover adapted to be disposed on the second cyclone unit. ### Claim 10 (depends on 9) The cyclone separating apparatus of claim 9, wherein the second cyclone unit is formed so that the bottom end of the at least one second cyclone is spaced apart from the first cyclone. ### Claim 11 (depends on 9) The cyclone separating apparatus of claim 9, wherein the second cyclone unit is adapted so that some part of the at least one second cyclone locates inside the first cyclone. ### Claim 12 (depends on 9) The cyclone separating apparatus of claim 9, wherein the housing comprises a connection part formed at a bottom surface of the housing to be connected with the air discharging part. ### Claim 13 (depends on 9) The cyclone separating apparatus of claim 9, wherein the housing further comprises a dust guide path adapted to be disposed at a bottom surface of the housing and to provide fluid communication between the first cyclone and the first dust chamber. ### Claim 14 (depends on 9) The cyclone separating apparatus of claim 9, further comprising a second air entering part and a second air discharging part adapted to be disposed at an upper portion of the at least one second cyclone. ### Claim 15 (depends on 14) The cyclone separating apparatus of claim 14, wherein the second air entering part is formed in substantially helical shape. ### Claim 16 (depends on 14) The cyclone separating apparatus of claim 14, wherein the second air entering part is adapted to be disposed in a tangential direction to the upper portion of the at least one second cyclone. ### Claim 17 (depends on 14) The cyclone separating apparatus of claim 14, wherein the second air entering part and the second air discharging part are adapted to be disposed on an upper plate. ### Claim 18 (depends on 9) The cyclone separating apparatus of claim 9, wherein the second cyclone unit is adapted to be detachably coupled to the first cyclone unit. ### Claim 19 (depends on 9) The cyclone separating apparatus of claim 9, wherein the at least one second cyclone is a plurality of second cyclones arranged substantially in a circle. ### Claim 20 (depends on 19) The cyclone separating apparatus of claim 19, wherein the plurality of second cyclones comprise chambers at least one second cyclone disposed within the circle formed the plurality of second cyclones.