# US 8,769,765 B2 · Surface treating appliance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,769,765 B2 - Document ID: US8769765B2 - Status: Granted - Kind: B2 - Application number: 13/619,040 - Filed: 2012-09-14 - Published: 2013-01-10 - Granted: 2014-07-08 - Earliest claimed: 2006-09-29 - Assignees: Dyson Technology Limited - Applicants: David Colin Worker; Nicholas Timothy Spence - Inventors: David Colin Worker; Nicholas Timothy Spence - Web page: https://patentgrep.com/patent/US8769765B2 ## CPC - A47L 5/32: with means for connecting a hose (hose couplings for suction cleaners A47L9/24) - A47L 5/28: Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle (A47L5/24 takes precedence) - A47L 9/0054: {Stands or the like for temporary interruption of work} - A47L 9/009: {Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles} - A47L 9/242: {Hose or pipe couplings} - 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 A surface treating appliance, such as a vacuum cleaner, includes a device generating a flow of fluid in the form of a motor and fan, housed in a main body. A hose and wand assembly, a surface treating head and a rotary change over valve are also provided. The valve is selectively rotatable so as to allow fluid flow from either the surface-treating head or the hose. A support assembly is moveable between a supporting position, in which it supports the main body, and a retracted position. The change over valve and support assembly are arranged so that motion of the support assembly between the supporting and retracted positions induces rotary motion of the change over valve. ## Claims ### Claim 1 A surface treating appliance comprising a device for generating a flow of fluid, a main body, a hose, a surface treating head and a change over valve, the valve being selectively moveable so as to allow fluid flow from either the surface-treating head or the hose, and a support assembly moveable between a supporting position, in which the support assembly supports the main body, and a retracted position, the support assembly comprising a stand arranged to engage a floor surface in the supporting position and to move pivotably with respect to the main body as the support assembly moves between the supporting and retracted positions, whereby pivoting motion of the stand is converted into motion of the change over valve. ### Claim 2 (depends on 1) The appliance of claim 1, in which a pin on the stand is arranged to engage a slot on the change over valve as the support assembly moves between the supporting and retracted positions. ### Claim 3 (depends on 1) The appliance of claim 1, in which the valve is arranged to allow fluid flow from the hose when the support assembly is in the supporting position. ### Claim 4 (depends on 1) The appliance of claim 1, in which the valve is arranged to allow fluid flow from the surface-treating head when the support assembly is in the retracted position. ### Claim 5 (depends on 1) The appliance of claim 1, further comprising a user-operable handle on the main body. ### Claim 6 (depends on 1) The appliance of claim 1, further comprising a roller assembly which is rotatably mounted to the main body for allowing the main body to be moved along a surface. ### Claim 7 (depends on 1) The appliance of claim 1, in which the support assembly further comprises at least one wheel for allowing the appliance to be rolled along a surface. ### Claim 8 (depends on 1) The appliance of claim 1, in which the support assembly is located on a rear portion of the appliance. ### Claim 9 (depends on 1) The appliance of claim 1, in which the surface-treating head is arranged in a fixed position with respect to the main body when the support assembly is in the supporting position. ### Claim 10 (depends on 9) The appliance of claim 9, in which the surface-treating head is arranged to bear against a floor surface when the support assembly is moved out of the supporting position. ### Claim 11 (depends on 1) The appliance of claim 1, further comprising a linkage between the main body and the surface-treating head arranged such that rotating the main body about its longitudinal axis causes the head to point in a new direction. ### Claim 12 (depends on 1) The appliance of claim 1, in which the surface-treating head has a driveable agitator. ### Claim 13 (depends on 12) The appliance of claim 12, in which the agitator is driveable when the support assembly is brought out of the supporting position. ### Claim 14 (depends on 12) The appliance of claim 12, in which the agitator is automatically driven when the support assembly is brought out of the supporting position. ### Claim 15 (depends on 12) The appliance of claim 12, in which the agitator is prevented from being driven when the support assembly is in the supporting position. ### Claim 16 (depends on 12) The appliance of claim 12, in which the agitator is a brush bar. ### Claim 17 (depends on 1) The appliance of claim 1, in the form of a vacuum cleaner. ### Claim 18 (depends on 17) The appliance of claim 17, further comprising a cyclonic dirt and dust separating device.