Invention Grant
- Patent Title: Assisted drive for surface cleaning devices
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Application No.: US16392480Application Date: 2019-04-23
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Publication No.: US11039722B2Publication Date: 2021-06-22
- Inventor: Andre D. Brown , David S. Clare , Nicholas Sardar , Christopher P. Pinches , Samuel Emrys James , Michael James Douglas , Jason B. Thorne
- Applicant: SharkNinja Operating, LLC
- Applicant Address: US MA Needham
- Assignee: SharkNinja Operating, LLC
- Current Assignee: SharkNinja Operating, LLC
- Current Assignee Address: US MA Needham
- Agency: Grossman Tucker Perreault & Pfleger, PLLC
- Main IPC: A47L9/28
- IPC: A47L9/28

Abstract:
In general, the present disclosure is directed to a force-sensing arrangement for use in surface cleaning devices, such as a vacuum device, that allows a user-supplied force to be translated into a command signal to cause the surface cleaning device to accelerate forward, reverse or to veer/turn in a desired direction. In an embodiment, the surface cleaning device includes a nozzle, wheels, motor(s) to drive the wheels, and an upright handle portion. The surface cleaning device includes a force-sensing arrangement with load cells coupled at a position where user force is transferred from the upright portion to the nozzle. The force-sensing arrangement detects the user supplying a relatively small amount of force and translates the same into measurement signals. A controller coupled to the load cells utilizes the measurement signals to determine or “infer” a desired direction of travel.
Public/Granted literature
- US20190320865A1 ASSISTED DRIVE FOR SURFACE CLEANING DEVICES Public/Granted day:2019-10-24
Information query