Patents by Inventor Nancy GAO WENXIU
Nancy GAO WENXIU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230240492Abstract: A cleaning apparatus includes a combing unit including a series of spaced protrusions or teeth extending into a cleaning roller for preventing build up and removing debris (such as hair, string, and the like). The protrusions extend along a substantial portion of the cleaning roller and extend partially into the cleaning roller to intercept the debris as it passes around the roller. The protrusions have angled leading edges that are not aligned with a rotation center of the cleaning roller and are directed into or against a direction of rotation of the cleaning roller. The combing unit and protrusions have a shape and configuration designed to facilitate debris removal from the cleaning roller with minimal impact on the operation of the cleaning apparatus. The cleaning apparatus may include a surface cleaning head of an upright vacuum cleaner or sweeper or a robotic vacuum cleaner.Type: ApplicationFiled: April 5, 2023Publication date: August 3, 2023Inventors: Jason B. THORNE, Yao MING, Daniel R. DER MARDEROSIAN, Daniel MEYER, Patrick CLEARY, Gordon HOWES, David WU, Nancy GAO WENXIU
-
Patent number: 11647881Abstract: A cleaning apparatus includes a combing unit including a series of spaced protrusions or teeth extending into a cleaning roller for preventing build up and removing debris (such as hair, string, and the like). The protrusions extend along a substantial portion of the cleaning roller and extend partially into the cleaning roller to intercept the debris as it passes around the roller. The protrusions have angled leading edges that are not aligned with a rotation center of the cleaning roller and are directed into or against a direction of rotation of the cleaning roller. The combing unit and protrusions have a shape and configuration designed to facilitate debris removal from the cleaning roller with minimal impact on the operation of the cleaning apparatus. The cleaning apparatus may include a surface cleaning head of an upright vacuum cleaner or sweeper or a robotic vacuum cleaner.Type: GrantFiled: April 20, 2017Date of Patent: May 16, 2023Assignee: SharkNinja Operating LLCInventors: Jason B. Thorne, Yao Ming, Daniel R. Der Marderosian, Daniel Meyer, Patrick Cleary, Gordon Howes, David Wu, Nancy Gao Wenxiu
-
Publication number: 20230090575Abstract: A surface cleaning head with dual rotating agitators (e.g., a leading roller and a brush roll) may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The leading roller is generally positioned adjacent to and in advance of the opening of the suction conduit. The rotating brush roll may be located in the suction conduit with the leading roller located in front of and spaced from the brush roll, forming an inter-roller air passageway therebetween. The leading roller may provide a softer cleaning element than the brush roll and may also have an outside diameter that is less than the outside diameter of the brush roll. The surface cleaning head may also include debriding protrusions contacting the leading roller and/or a leading bumper that extends in front of the leading roller.Type: ApplicationFiled: March 21, 2022Publication date: March 23, 2023Inventors: Steven Paul CARTER, Adam UDY, Catriona A. SUTTER, Christopher PINCHES, David S. CLARE, Andre David BROWN, John FREESE, Patrick CLEARY, Alexander CALVINO, Lee COTTRELL, Daniel MEYER, Daniel John INNES, David JALBERT, Jason THORNE, Peter HUTCHINSON, Gordon HOWES, Nancy GAO WENXIU, David WU, David W. POIRER
-
Patent number: 11278171Abstract: A surface cleaning head with dual rotating agitators (e.g., a leading roller and a brush roll) may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The leading roller is generally positioned adjacent to and in advance of the opening of the suction conduit. The rotating brush roll may be located in the suction conduit with the leading roller located in front of and spaced from the brush roll, forming an inter-roller air passageway therebetween. The leading roller may provide a softer cleaning element than the brush roll and may also have an outside diameter that is less than the outside diameter of the brush roll. The surface cleaning head may also include debriding protrusions contacting the leading roller and/or a leading bumper that extends in front of the leading roller.Type: GrantFiled: October 21, 2016Date of Patent: March 22, 2022Assignee: SharkNinja Operating LLCInventors: Steven Paul Carter, Adam Udy, Catriona A. Sutter, Christopher Pinches, David S. Clare, Andre David Brown, John Freese, Patrick Cleary, Alexander Calvino, Lee Cottrell, Daniel Meyer, Daniel John Innes, David Jalbert, Jason Thorne, Peter Hutchinson, Gordon Howes, Nancy Gao Wenxiu, David Wu, David W. Poirier
-
Publication number: 20180255991Abstract: A surface cleaning apparatus including a body defining an agitation chamber, an agitator partially disposed within the agitation chamber and configured to rotate about a pivot axis, and a debrider at least partially disposed within the agitation chamber. The agitator includes an elongated body having a first and a second end, a sidewall extending radially outward from the elongated body extending between the first and the second ends, and a plurality of bristles extending radially outward from the elongated body. The plurality of bristles are arranged in at least one row adjacent to the sidewall. The debrider includes a plurality of teeth configured to contact a portion of the sidewall as the agitator rotates about the pivot axis.Type: ApplicationFiled: March 10, 2018Publication date: September 13, 2018Inventors: Daniel R. DER MARDEROSIAN, John FREESE, Gordon HOWES, Nancy GAO WENXIU, David S. CLARE, Nathan HERRMANN, Hugh Jamie CROGGON, Nicholas SARDAR, Tyler SMITH, Ian LIU
-
Publication number: 20170347848Abstract: A surface cleaning head includes dual rotating agitators (e.g., a leading roller and a brush roll) and a removable cover for covering a top of the agitators and allowing access to the agitators from a top of the surface cleaning head. The dual agitators may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The brush roll may be located in a brush roll chamber and at least partially in an opening to the suction conduit. The leading roller may be positioned adjacent to and in advance of the suction conduit opening such that the leading roller engages debris and moves the debris toward the brush roll and the opening. The leading roller may be removable from the housing and held in place by the removable cover. The cover may be coupled using isolated latching mechanisms.Type: ApplicationFiled: August 24, 2017Publication date: December 7, 2017Inventors: Steven Paul CARTER, Adam UDY, Catriona A. SUTTER, Christopher PINCHES, David S. CLARE, Andre David BROWN, John FREESE, Patrick CLEARY, Alexander CALVINO, Lee COTTRELL, Daniel MEYER, Daniel John INNES, David JALBERT, Jason THORNE, Peter HUTCHINSON, Gordon HOWE, Nancy GAO WENXIU, David WU, David W. POIRIER, Daniel R. DER MARDEROSIAN
-
Publication number: 20170215667Abstract: A cleaning apparatus includes a combing unit including a series of spaced protrusions or teeth extending into a cleaning roller for preventing build up and removing debris (such as hair, string, and the like). The protrusions extend along a substantial portion of the cleaning roller and extend partially into the cleaning roller to intercept the debris as it passes around the roller. The protrusions have angled leading edges that are not aligned with a rotation center of the cleaning roller and are directed into or against a direction of rotation of the cleaning roller. The combing unit and protrusions have a shape and configuration designed to facilitate debris removal from the cleaning roller with minimal impact on the operation of the cleaning apparatus. The cleaning apparatus may include a surface cleaning head of an upright vacuum cleaner or sweeper or a robotic vacuum cleaner.Type: ApplicationFiled: April 20, 2017Publication date: August 3, 2017Inventors: Jason B. THORNE, Yao MING, Daniel R. DER MARDEROSIAN, Daniel MEYER, Patrick CLEARY, Gordon HOWE, David WU, Nancy GAO WENXIU
-
Publication number: 20170127896Abstract: A surface cleaning head with dual rotating agitators (e.g., a leading roller and a brush roll) may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The leading roller is generally positioned adjacent to and in advance of the opening of the suction conduit. The rotating brush roll may be located in the suction conduit with the leading roller located in front of and spaced from the brush roll, forming an inter-roller air passageway therebetween. The leading roller may provide a softer cleaning element than the brush roll and may also have an outside diameter that is less than the outside diameter of the brush roll. The surface cleaning head may also include debriding protrusions contacting the leading roller and/or a leading bumper that extends in front of the leading roller.Type: ApplicationFiled: October 21, 2016Publication date: May 11, 2017Inventors: Steven Paul CARTER, Adam UDY, Catriona A. SUTTER, Christopher PINCHES, David S. CLARE, Andre David BROWN, John FREESE, Patrick CLEARY, Alexander CALVINO, Lee COTTRELL, Daniel MEYER, Daniel John INNES, David JALBERT, Jason THORNE, Peter HUTCHINSON, Gordon HOWE, Nancy GAO WENXIU, David WU, David W. POIRIER
-
Patent number: D849345Type: GrantFiled: April 19, 2017Date of Patent: May 21, 2019Assignee: SharkNinja Operating LLCInventors: Jason B. Thorne, Yao Ming, Daniel R. Der Marderosian, Daniel Meyer, Patrick Clearly, Gordon Howes, David Wu, Nancy Gao Wenxiu
-
Patent number: D872955Type: GrantFiled: May 13, 2019Date of Patent: January 14, 2020Assignee: SharkNinja Operating LLCInventors: Jason B. Thorne, Yao Ming, Daniel R. Der Marderosian, Daniel Meyer, Patrick Cleary, Gordon Howes, David Wu, Nancy Gao Wenxiu