公开(公告)号：US20230255417A1

公开(公告)日：2023-08-17

申请号：US18307612

申请日：2023-04-26

Applicant: TECHTRONIC CORDLESS GP

Inventor： Brianna Williams ,  Stephen A. Hughett ,  Christopher M. Williams

IPC: A47L9/04 ,  A47L11/40

CPC classification number: A47L9/0477 ,  A47L11/4041 ,  A47L11/4044

Abstract: A vacuum cleaner includes a base and a brushroll positioned within the base. The base has a suction opening and is configured to move along a surface to be cleaned. The brushroll is rotatable relative to the base about an axis, and the brushroll includes a first end, a second end, an inflection point located between the ends, and a material that protrudes radially away from the brushroll. The material extends between the first end and the second end and wraps around the brushroll with a pitch. The material wraps in a first direction between the first end and the inflection point and wraps in a second direction between the inflection point and the second end.

公开(公告)号：US11638507B2

公开(公告)日：2023-05-02

申请号：US16582381

申请日：2019-09-25

Applicant: TECHTRONIC CORDLESS GP

Inventor： Brianna Williams ,  Stephen A. Hughett ,  Christopher M. Williams

IPC: A47L9/04 ,  A47L11/40

Abstract: A vacuum cleaner includes a base and a brushroll positioned within the base. The base has a suction opening and is configured to move along a surface to be cleaned. The brushroll is rotatable relative to the base about an axis, and the brushroll includes a first end, a second end, an inflection point located between the ends, and a material that protrudes radially away from the brushroll. The material extends between the first end and the second end and wraps around the brushroll with a pitch. The material wraps in a first direction between the first end and the inflection point and wraps in a second direction between the inflection point and the second end.