A method of utilizing a handheld bottle washer that includes compressing two flexible opposing sidewalls of the bottle washer with an external compression force to generate a dynamic position with a diameter of the enclosed washing aperture, inserting the two flexible opposing sidewalls into an opening of a bottle while in the dynamic position, releasing the external compression force causing the two flexible opposing sidewalls to expand outwardly to generate a static position with the diameter of the enclosed washing aperture greater than the diameter of enclosed washing aperture when in the dynamic position and with the cleaning material on the outer surfaces of each of the two opposing sidewalls contacting the inner surfaces of the bottle, and applying a downward force on the lower end of the handheld body to move the cleaning material on the inner surfaces of the bottle for cleaning.

A self-righting handheld utensil comprises a weighted element having a generally rounded bottom side, an elongated region extending outwardly from the weighted element, and a use portion. The weighted element, by virtue of its rounded bottom and mass, provide for a self-righting function for the disclosed utensil such that, when placed on a flat or substantially flat surface, it counterbalances the utensil to an upright vertical orientation without the need for user intervention or the application of any external force. The weighted element need not become uncoupled from the elongated region and use portion before the user makes operative use of the disclosed utensil.

A modified ferrule implement configured to affix a plurality of bristles to a handle to form a modified brush. A hook mechanism extends from the ferrule implement, wherein the hook mechanism is configured to secure the modified brush to a lip or edge portion of a paint bucket or container. The securing of the modified brush to the lip or edge portion of the bucket or container includes attaching the modified brush in the lip or edge portion of the paint bucket or container at different angles and balancing the modified brush when attached to the bucket or container.

A self-righting handheld utensil comprises a weighted element having a generally rounded bottom side, an elongated region extending outwardly from the weighted element, and a use portion. The weighted element, by virtue of its rounded bottom and mass, provide for a self-righting function for the disclosed utensil such that, when placed on a flat or substantially flat surface, it counterbalances the utensil to an upright vertical orientation without the need for user intervention or the application of any external force. The weighted element need not become uncoupled from the elongated region and use portion before the user makes operative use of the disclosed utensil.

A scrubber is formed with a plurality of bristles and can be inserted into a bottle or similar vessel for cleaning. Several such scrubbers can be inserted into a single bottle such that the bottle can be shaken to allow the scrubber balls to reach all of the surfaces on the interior of the bottle.

A self-righting handheld utensil comprises a weighted base having a generally rounded bottom end, an elongated region extending outwardly from the base, and a use portion. The base, by virtue of its generally rounded bottom and mass, provide for a self-righting function for the disclosed utensil such that, when placed on a flat or substantially flat surface, it counterbalances the utensil to an upright vertical orientation without the need for user intervention or the application of any external force. The base need not become uncoupled from the elongated region and use portion before the user makes operative use of the disclosed utensil. The bottom end of the base may comprise one of several structural embodiments that retain the self-righting function of the utensil.

A paint brush comprises an elongate handle having a proximal end and a distal end, a tuft of bristles having properties according to at least two distinct directions, and a ferrule. The bristles are arranged substantially parallel to an axial direction and the cross section of the tuft of bristles is in a plane that has a width in a lateral direction. One end of the handle is operatively associated and is in substantially longitudinal alignment with the tuft and the ferrule is adapted to surroundingly encircle and connect said handle to said tuft of bristles so as to support the bristles against splaying in the lateral direction and limit deflection of the width.

A self-righting toothbrush includes a medial section disposed between head and tail sections. The head section mounts a set of frontwardly extending bristles. The tail section has a rearwardly extending asymmetry. The medial section has a pivot surface whose center of rotation defines a pivot point on a longitudinal neutral pivot axis. The pivot surface allows the toothbrush to pivot about the neutral pivot axis when the toothbrush is placed on a support surface. The head and tail sections have respective centers of mass. In a non-bristles up position, the head and tail section centers of mass are spaced from the neutral pivot axis on opposite sides thereof. Due to a moment imbalance dominated by the head section center of mass, there is a net rotational moment about the neutral pivot axis that induces the toothbrush to pivot about the neutral pivot axis to a bristles up position.

A touch-control flashing toothbrush comprises a hollow brush handle and a control circuit board. The hollow brush handle has a brush head at one end and a light-permeable handle member at another end. The control circuit board is arranged inside the hollow brush handle and includes a control circuit electrically connected with a light emitting element, two electric-conduction contacts, and a battery assembly. The battery assembly supplies power to the other elements. The electric-conduction contacts are exposed on the surface of the hollow brush handle. Once two electric-conduction contacts are touched simultaneously, voltage of the battery assembly is conducted to the control circuit. Then, the control circuit controls the light emitting element to emit light projecting to exterior through the light-permeable handle member. The touch-control flashing toothbrush is triggered to emit light by touch, interesting children and encouraging them to keep oral health.

An aerosol generating system includes a holder generating aerosol by heating a cigarette, and a cradle having an inner space into which the holder is inserted, wherein the holder is electrically connected to the cradle to be moveable in the inner space of the cradle. The aerosol generating system includes a controller and a heater for heating an aerosol generating material, wherein the controller predicts insertion of the cigarette into the holder and preheats the heater in advance based on a prediction result.