An added inertia resonant system (12) for a power toothbrush (10) comprises a drive shaft (16), a drive system (22), and at least one inertial weight member (24). The drive shaft (16) has a principal axis (26) that defines a center of rotation. The drive system (22) imparts a reciprocating motion to the drive shaft (16) about the principal axis (26). The at least one inertial weight member (24) couples to the drive shaft (16) and comprises a planar material having a complex shape balanced along an x-, y- and z-axis to enable the drive system (22) to achieve low power, high amplitude motion of the drive shaft (16) when placed under user loading. A method for providing added inertia in a resonant system for a power toothbrush is also disclosed.

Described is a vibrating device for delivering energy to at least a portion of a dental appliance. The vibrating device may be inserted into a biting element or attached to a biting element to apply vibrations to the dental appliance to aid in aligning a user's teeth.

A toothbrush, comprises a handle; a head connected to the handle; and a plurality of bristles, respective ones of the plurality of bristles including a first end having a first shape formed by an end-rounding process, a second end having a second shape, and a substantially cylindrical shaft extending between the first end and the second end. The bristles are fastened to the head by a fastener at a fastening point along the shaft, the fastening point being located nearer to the second end than to the first end such that the first end extends from a surface of the head to a first height and the second end extends from the surface of the head to a second height. The first height is greater than the second height.

The brush head of the toothbrush has filaments that are pointed at one end and led through clearances in the bristle carrier. These filaments have a length of about 10-20 mm. The tips of the pointed filaments produce a height profile other than that of a plane and the ends of the pointed filaments that are remote from the tips are melted.

A skincare device having optimized dual energy modalities ace is presented. In an embodiment, a skincare device includes a body having protruding elements configured for contacting a skin of a user, where the protruding elements are configured to vibrate in operation. The skincare device also includes an end effector configured for contacting the skin of the user, where the end effector is configured to oscillate about a center axis in operation.

A pair of cleansing handwear, including a scrubbing surface to scrub a surface of a pool to remove at least one of settlement, dirt, fungus, mildew, mold, and dirt, and at least one fingerless portion, such that at least one of a user's fingers can grasp at least one of tiles, rocks, leaves, and dirt during cleaning of the pool.

An apparatus for removing blackheads and providing skin care treatments comprising a funnel body wherein said funnel body comprises a compartment, a first opening and a second opening; wherein said first opening and said second opening are bended about 45 degrees from an axial axis; wherein said first opening further comprises a vacuum tip that is detachable and said second opening further comprises a massage metal plate; said apparatus further comprises a vacuum pump, a CPU, and a PCB that are all disposed within said compartment; wherein said vacuum tip further comprises a vacuum filter that is disposed in between said vacuum tip and said vacuum pump; wherein said vacuum pump is controlled by said CPU and said PCB; wherein said funnel body further comprises a smart switch disposed on the outside wall thereof; wherein said smart switch is wired to and controlled by said CPU and said PCB; wherein said apparatus further comprises a lithium battery that powers said PCB, said CPU, and said pump; wherein said funnel body further comprises vent pores; wherein said apparatus further comprises a status light made of LED that is wired to and controlled by said CPU and said PCB, and powered by said lithium battery.

A toothbrush (10) includes a brush assembly (16) with at least three bristle arrangements (12), each having opposing inwardly-directed bristles (122, 124, 126) for simultaneously contacting facial and lingual surfaces (52, 54), and preferably also occlusal surfaces (56) of the teeth (50). Flexible linkages (14), interconnecting the bristle arrangements (12), maintain a relative spacing between the bristle arrangements (12) while allowing variation of an effective curvature of the brush assembly (16) such that the bristle arrangements (12) can ride along, and conform to a non-uniform curvature of, the arch of teeth. The toothbrush (TO) preferably also includes an actuation mechanism (22) for generating to-and-fro motion of the brush assembly (16) along the arch of teeth, most preferably combined with a more rapid small-amplitude oscillatory motion.

End effectors and systems including end effectors including embedded batteries and auxiliary components powered by the batteries are described. In an example, the end effector includes a base portion coupleable to a motor carried by an appliance that is separate from the end effector; and a battery disposed in the base portion configured to power an auxiliary component of the end effector.

A brushhead assembly (10) for a power toothbrush (1), which includes a bristle plate (12) and a set of bristles (14) mounted to the bristle plate (12). The set of bristles (14) is characterized such that some or all of the bristles have a dipole whip motion during operation at a selected drive frequency, including arrangements where the bristles in a first portion (32) have a different motion than the bristles at a at least a second portion (34) of the brushhead assembly (10).