Abstract: A razor handle includes an at least partially hollow elongated structure and an at least partially hollow sleeve. The elongated structure has an interior surface and an exterior surface, a first opening at a proximate end, and a second opening along a length of the elongated structure. The sleeve has an interior surface and an exterior surface with a protrusion. The protrusion is adapted to extend through the second opening to the exterior surface of the elongated structure forming a gripping member.

Abstract: A cosmetic applicator comprising a handle having a proximal end and a distal end, wherein the handle comprises a drive; an applicator head operatively associated with the drive to move at least part of the applicator head relative to the handle; and a control surface disposed at the proximal end of the handle and operatively associated with the drive. The control surface may be rotatable about a control surface axis through a plurality of positions and the control surface axis may be aligned with the longitudinal axis of the handle. The control surface may be moveable through a plurality of positions. The applicator may comprise an additional control surface, such as a second control surface or temporary control surface, which may be operated independently or in combination with the first control surface.

Abstract: A hand held device comprising: a handle, said handle comprising a grip portion and a connection portion, said connection portion rotating with respect to said grip portion about a rotational axis, said connection portion forming a docking portion suitable for receiving an optional head unit, said docking portion being positioned opposite distally away from said grip portion, wherein the grip portion and the connection portion are connected by a rod comprising a metal material, said rod comprising a distal end non-rotatably attached to the grip portion and a proximal end non-rotatably attached to the connection portion, wherein rotational axis forms a central longitudinal axis of said rod.

Abstract: A razor handle includes an at least partially hollow elongated structure and an at least partially hollow sleeve. The elongated structure has an interior surface and an exterior surface, a first opening at a proximate end, and a second opening along a length of the elongated structure. The sleeve has an interior surface and an exterior surface with a protrusion. The protrusion is adapted to extend through the second opening to the exterior surface of the elongated structure forming a gripping member.

Abstract: Battery operated appliances are provided. Some appliances include a housing defining a chamber having an interior wall, electronics within the chamber, a battery cover, and a closing system including (a) a first electrically conductive member secured to the battery cover, and (b) a second electrically conductive member secured to the interior wall of the housing and configured to engage the first electrically conductive member and thereby mechanically secure the battery cover to the housing while also establishing electrical contact between the first and second electrically conductive members.

Abstract: A hand held device comprising a handle, said handle comprising a grip portion and a connection portion, said connection portion rotating with respect to said grip portion about a rotational axis, said connection portion forming a docking portion suitable for receiving an optional head unit, said docking portion being positioned opposite distally away from said grip portion, wherein rotation of the connection portion relative to the grip portion generates a specific amount of dynamic torsional resistance. The handle has a set amount of stiffness and damping and/or stiffness and momentum of inertia such that the device provides a controlled return during rotation about the rotational axis so the device can contour about the surface in a desirable manner.

Abstract: A hand held device comprising: a handle, said handle comprising a grip portion and a connection portion, said connection portion rotating with respect to said grip portion about a rotational axis, said connection portion forming a docking portion suitable for receiving an optional head unit, said docking portion being positioned opposite distally away from said grip portion, wherein the grip portion and the connection portion are connected by a rod, said rod comprising a distal end non-rotatably attached to the grip portion and a proximal end non-rotatably attached to the connection portion, wherein rotational axis forms a central longitudinal axis of said rod.

Abstract: Battery operated appliances are provided. Some appliances include a housing defining a chamber having an interior wall, electronics within the chamber, a battery cover, and a closing system including (a) a first electrically conductive member secured to the battery cover, and (b) a second electrically conductive member secured to the interior wall of the housing and configured to engage the first electrically conductive member and thereby mechanically secure the battery cover to the housing while also establishing electrical contact between the first and second electrically conductive members.

Abstract: A manual toothbrush with a handle and a toothbrush head mounted on the handle. A pivot bearing for pivoting the toothbrush head relative to the handle is arranged between the toothbrush head and the handle.

Abstract: Battery operated appliances are provided. Some appliances include a housing defining a chamber having an interior wall, electronics within the chamber, a battery cover, and a closing system including (a) a first electrically conductive member secured to the battery cover, and (b) a second electrically conductive member secured to the interior wall of the housing and configured to engage the first electrically conductive member and thereby mechanically secure the battery cover to the housing while also establishing electrical contact between the first and second electrically conductive members.

Abstract: A toothbrush having a head with a first end and a second end with peripheral edge regions extending between the first end and the second end is described. The head includes a first surface and a second surface opposite the first surface. The first surface includes raised portions and depressed portions, wherein the depressed portions are adjacent the peripheral edge regions. A first plurality of cleaning elements protrude from the first surface, and a second plurality of cleaning elements protrude from the first surface. Each of the first plurality of cleaning elements protrudes from a depressed portion and has a cross section. Each of the depressed portions has the same cross section as each of the first plurality of cleaning elements.

Abstract: A toothbrush having a head with a first end and a second end with peripheral edge regions extending between the first end and the second end is described. The head includes a first surface and a second surface opposite the first surface. The first surface includes raised portions and depressed portions, wherein the depressed portions are adjacent the peripheral edge regions. A first plurality of cleaning elements protrude from the first surface, and a second plurality of cleaning elements protrude from the first surface. Each of the first plurality of cleaning elements protrudes from a depressed portion and has a cross section. Each of the depressed portions has the same cross section as each of the first plurality of cleaning elements.

Abstract: Water-tight battery powered appliances, for example personal care appliances such as razors and toothbrushes, are provided. The appliances include a housing having a seal that allows gases, e.g., hydrogen, to vent from the appliance without allowing water to enter.

Abstract: A toothbrush including a brush head, bristle clusters protruding from a cleaning surface of the brush head and a depression disposed in the surface and surrounding at least one bristle cluster, the depression having a bottom into which the bristle cluster penetrates and in which the bristle cluster is fixed.

Abstract: A manual toothbrush with a handle and a toothbrush head mounted on the handle. A pivot bearing for pivoting the toothbrush head relative to the handle is arranged between the toothbrush head and the handle.

Abstract: A manual toothbrush with a handle and a toothbrush head mounted on the handle. A pivot bearing for pivoting the toothbrush head relative to the handle is arranged between the toothbrush head and the handle.

Abstract: Battery operated appliances are provided. Some appliances include a housing defining a chamber having an interior wall, electronics within the chamber, a battery cover, and a closing system including (a) a first electrically conductive member secured to the battery cover, and (b) a second electrically conductive member secured to the interior wall of the housing and configured to engage the first electrically conductive member and thereby mechanically secure the battery cover to the housing while also establishing electrical contact between the first and second electrically conductive members.

Abstract: Battery operated appliances are provided. Some appliances include a housing defining a chamber having an interior wall, electronics within the chamber, a battery cover, and a closing system including (a) a first electrically conductive member secured to the battery cover, and (b) a second electrically conductive member secured to the interior wall of the housing and configured to engage the first electrically conductive member and thereby mechanically secure the battery cover to the housing while also establishing electrical contact between the first and second electrically conductive members.

Abstract: A razor handle includes an at least partially hollow elongated structure and an at least partially hollow sleeve. The elongated structure has an interior surface and an exterior surface, a first opening at a proximate end, and a second opening along a length of the elongated structure. The sleeve has an interior surface and an exterior surface with a protrusion. The protrusion is adapted to extend through the second opening to the exterior surface of the elongated structure forming a gripping member.

Abstract: Water-tight battery powered appliances, for example personal care appliances such as razors and toothbrushes, are provided. The appliances include a housing having a seal that allows gases, e.g., hydrogen, to vent from the appliance without allowing water to enter.