Abstract: A personal care product is provided including an applicator head with a flat treatment sheet. The personal care product also includes a cover configured to surround the applicator head and to cover the treatment sheet. The cover includes a base with a planar outer surface. The cover also includes an outer rim around a perimeter of the planar outer surface and an inner rim configured to engage a portion of the applicator head. The planar outer surface of the base defines a plane. The personal care product includes a center of gravity with a projection in the plane, where the length of the one or more tabs along the plane exceeds a length between the projection and the inner rim along the plane.

Abstract: A personal care product is provided including an applicator head with a flat treatment sheet. The personal care product also includes a cover configured to surround the applicator head and to cover the treatment sheet. The cover includes a base with a planar outer surface. The cover also includes an outer rim around a perimeter of the planar outer surface and an inner rim configured to engage a portion of the applicator head. The planar outer surface of the base defines a plane. The personal care product includes a center of gravity with a projection in the plane, where the length of the one or more tabs along the plane exceeds a length between the projection and the inner rim along the plane.

Abstract: The present invention relates to a skin treatment sheet including a substrate with a plurality of apertures wherein the apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a total cutting length which is the total length of all portions of the first perimeter in each aperture that contain a cutting edge and a total aperture area wherein the ratio of total aperture area to total cutting length is in a predefined range from 0.08 to 2.0 mm. Moreover, the present invention also relates to a skin treatment device including this skin treatment sheet.

Abstract: The present invention relates to a skin treatment sheet comprising a substrate with a plurality of apertures wherein the sheet has a first surface and an opposing second surface. The apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a stability ST which is the ratio of the average cross-sectional substrate area Ax and the total aperture area A1. Moreover, the present invention also relates to a skin treatment device comprising this skin treatment sheet.

Abstract: This invention relates to a novel personal care product including an upper product end, a housing at the upper product end, the housing having a top opening and an outer wall, a treatment sheet disposed over the top opening of the housing; and one or more windows disposed in the outer wall of the housing. Fluid flows through the windows or through a plurality of apertures in the treatment sheet or both. The fluid flow removes debris from a lower surface of the treatment sheet, a cavity of said housing, or both. The fluid flows in a direction parallel to the treatment sheet into and/or out of the one or more windows. The windows can be a polygonal or round shape and can have rounded corners. The windows may oppose each other. The outer wall is along an outer surface of the upper end of the product.

Abstract: This invention relates to a novel personal care product having a treatment sheet includes a first material and a plurality of first apertures, and at least one support sheet includes a second material and a plurality of second apertures, the at least one support sheet disposed beneath the treatment sheet and desirably joined to the treatment sheet. The first apertures of the treatment sheet include cutting edges generally formed on at least a portion of an inner perimeter of the first apertures while the support sheet does not include cutting apertures. The first and second apertures are aligned such that from a top view of the product, the apertures of the support sheet are not visible, providing ease of rinsing. The support sheet assists in reducing damage to the treatment sheet (e.g., if the personal care product is dropped).

Abstract: This invention relates to a novel personal care product and method of assembling the product including an upper product end and a lower product end, a housing at the upper product end, the housing having a housing wall and one or more windows in the housing wall, a frame member including one or more tabs, the one or more tabs coupled to the one or more windows. The number of tabs can equal the number of windows. The housing may also include notches within which the tabs are disposed.

Abstract: This invention relates to a novel of making a personal care product including the steps of providing a treatment sheet comprised of a first material and a first plurality of apertures and joining a support structure to the lower surface of the treatment sheet. The support structure includes a support material, a support sheet, a support ring, or any combination thereof. The support sheet includes a second plurality of apertures. The support sheet is disposed beneath the treatment sheet by aligning the first plurality of apertures and the second plurality of apertures. Fluid support material is solidified such that the treatment sheet and the support sheet are bonded together. The support ring is disposed on a housing (e.g., in a groove) below the support sheet or joined to the treatment sheet via the support material prior to solidifying.

Abstract: The present invention is directed to a personal care product including a treatment sheet having a lower surface, a housing including a floor surface and a plurality of columns, and a cavity formed by a volume extending from the lower surface to the floor surface. The volume extends from an inner column wall of the housing. The plurality of columns is formed in a side wall of the housing. The cavity has a height of at least one-fifteenth of a height of the personal care product and/or a height of at least about a height of one of the columns. The columns extend upward from the floor surface of the housing or to a lower ledge of a carrier of the housing. The floor surface is flat or shaped (e.g., a dome or a cone shape). Fluid flows within the cavity, into and out of windows between the columns.

Abstract: This invention relates to a novel personal care product having a flat treatment sheet having an upper surface and a perimeter area on the upper surface, a frame member having an underside surface and at least one tab, wherein the frame member is disposed over the perimeter area of the flat treatment sheet and the underside surface of the frame member is coplanar with the upper surface of the flat treatment sheet and the at least one tab extends below the lower surface of the treatment sheet. An upper product end of the personal care product includes a housing having at least one housing window. The at least one tab of the frame member is bent into the housing window. The frame member includes a flat or chamfered upper surface. The flat treatment sheet treats skin, removes hair, or a combination thereof.

Abstract: This invention relates to a novel personal care product which having a treatment unit which includes a treatment sheet and a support structure. The treatment sheet includes apertures with cutting edges while the support structure, joined to the treatment sheet, is formed of a support material, a support sheet or a support ring, or any combination thereof. The support structure assists in reducing damage to the treatment sheet and in preventing injury to the consumer (e.g., if the personal care product is dropped).