# US 8,464,389 B2 · Cleaning device having multiple cleaning surfaces > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,464,389 B2 - Document ID: US8464389B2 - Status: Granted - Kind: B2 - Application number: 12/294,440 - Filed: 2007-03-28 - Published: 2010-11-25 - Granted: 2013-06-18 - Earliest claimed: 2006-03-31 - Assignees: 3M Innovative Properties Company - Applicants: Weilai Jiang; Feng Zeng - Inventors: Weilai Jiang; Feng Zeng - Web page: https://patentgrep.com/patent/US8464389B2 ## CPC - A47L 13/256: for mops made of cloth - A47L 13/12: Implements with several different treating devices - 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) ## Abstract The cleaning device of the present invention comprises: a cleaning portion, the cleaning portion is provided with a cleaning surface and an opposite surface opposed to the cleaning surface; a supporting arm (4); and a pivoting mechanism (5) for pivotably supporting the supporting arm (4) on the opposite surface. The cleaning surface (3) of the cleaning portion includes a first cleaning material surface (3a) and a second cleaning material surface (3b), the first cleaning material surface (3a) and the second cleaning material surface (3b) come into contact with the surfaces to be cleaned, respectively. When any one of the first cleaning material surface (3a) and the second cleaning material surface (3b) comes into contact with the surface to be cleaned, the other cleaning material surface has an angle (α) from 90 degrees to 180 degrees with respect to the surface to be cleaned. ## Claims ### Claim 1 A cleaning device, comprising: a cleaning portion having a cleaning surface and an opposite surface opposed to the cleaning surface; a supporting arm; and a pivoting mechanism for pivotably supporting the supporting arm on the opposite surface, wherein the cleaning surface of the cleaning portion includes a first cleaning material surface and a second cleaning material surface, wherein the first cleaning material surface and the second cleaning material surface come into contact with the surfaces to be cleaned, wherein the cleaning portion is provided with a supporting plate and at least one side plate pivotably attached to one side of the supporting plate, the side plate comprising a moveable distal edge distal the one side of the supporting plate; wherein the moveable distal edge comprises positioning elements for selectively fixing the moveable distal edge to the supporting plate in a fastened position; wherein in the fastened position as one of the first cleaning material surface and the second cleaning material surface comes into contact with the surface to be cleaned, the other cleaning material surface has an angle from 90 degrees to 180 degrees with respect to the surface to be cleaned. ### Claim 2 (depends on 1) The cleaning device of claim 1, wherein: the first cleaning material surface is disposed on the bottom surface of the supporting plate and the second cleaning material surface is disposed on the bottom surface of the side plate. ### Claim 3 (depends on 1) The cleaning device of claim 1, wherein: wherein the supporting plate is provided with position cooperation elements for mating with the side plate moveable distal edge positioning elements, and wherein the side plate and the supporting plate form an angle (β) larger than 270 degrees after mating of the positioning elements and the position cooperation elements, the first cleaning material surface is disposed on the bottom surface of the supporting plate and the second cleaning material surface is disposed on the bottom surface of the side plate. ### Claim 4 (depends on 3) The cleaning device of claim 3, wherein: the positioning elements and the position cooperation elements are composed of a row of teeth having overlapped positions with the other row. ### Claim 5 (depends on 3) The cleaning device of claim 3, wherein: the first cleaning material surface and the second cleaning material surface are disposed on an integral structure, and are fixed to predetermined positions of the supporting plate and the side plate. ### Claim 6 (depends on 1) The cleaning device of claim 1, wherein: the surface area of the first cleaning material surface is larger than the surface area of the second cleaning material surface. ### Claim 7 (depends on 1) The cleaning device of claim 1, wherein: the shape of the first cleaning material surface is different from the shape of the second cleaning material surface. ### Claim 8 (depends on 1) The cleaning device of claim 1, wherein: the first cleaning material surface and the second cleaning material surface are replaceable. ### Claim 9 (depends on 8) The cleaning device of claim 8, wherein: the first cleaning material surface and the second cleaning material surface are separately replaceable. ### Claim 10 (depends on 1) The cleaning device of claim 1, wherein: the cleaning material of the first cleaning material surface is the same material for the second cleaning material surface. ### Claim 11 (depends on 1) The cleaning device of claim 1, wherein: the cleaning material of the first cleaning material surface is different from that of the second cleaning material surface. ### Claim 12 (depends on 1) The cleaning device of claim 1, wherein: the cleaning material of the first cleaning material surface is a woven, knitted, or nonwoven cleaning cloth, and the cleaning material of the second cleaning material surface is a scouring or abrasive material.