Water Pik, Inc.

A brush head for an oral cleansing device is provided. The brush head may include a shaft and a cantilevered beam positioned within the shaft. The cantilevered beam may be configured to press against a drive shaft of the oral cleansing device to transfer a rotational motion of the drive shaft to the brush head. The cantilevered beam may be formed on an adapter secured within the shaft.

An oral cleansing device including a handle, a brush head removably connected to the handle at a top end of the handle, a base unit that supports a reservoir to serve as a fluid source, a fluid tube extending from the base unit, and a fluid connector connected to the fluid tube and removably connected to the handle at a bottom end of the handle to connect the handle to the fluid source. The fluid connector includes a magnetic element configured to provide a magnetic attraction to the base unit, thereby assisting in securing the fluid connector to the base unit.

A handheld oral health device (e.g., a water flosser) may include a body, a reservoir coupled to the body and defining a handle for gripping by the user to hold the handheld device, and an accessory storage associated with the reservoir, the accessory storage configured to store one or more accessories for the handheld device. The accessory storage may be detachable from the handheld device and/or define a storage compartment separate from the body/reservoir. The accessory storage may include an engagement configured for selective attachment to the reservoir. The engagement may include a clip or magnets. The accessory storage may include a hinged or slide closure to selectively close the storage compartment. Venting may be defined at a bottom of the storage compartment. Additional systems and associated methods are also disclosed.

In one embodiment, an oral irrigator is disclosed. The oral irrigator may include a housing, a drive assembly positioned within the housing, a pump assembly coupled to the drive assembly and an isolator assembly coupled to at least one of the drive assembly or the pump assembly and configured to dampen vibrations generated by either or both of the drive assembly or the pump assembly. The isolator assembly includes a chassis operably coupled to a portion of at least one of the drive assembly or the pump assembly, an engagement arm coupled to and extending outwards from the chassis, and a dampener positioned between the chassis and a portion of the housing, the dampener comprising a pocket defined therein and configured to support the isolator assembly within the housing, where the engagement arm engages an engagement surface of the dampener separate from a pocket surface defining the pocket.

An oral irrigator including a reservoir, a handle, a tip, a pump, a motor connected to the pump and configured to selectively actuate the pump, a processing element, and a signal generator, wherein during operation in a normal mode, the signal generator provides a first control signal to the motor causing the pump to cycle at a first pulse rate having a first flow rate over a first time duration and has a normal magnitude and a normal frequency, and wherein during operation in a massage mode, the signal generator provides a second control signal to the motor, the second control signal having a massage magnitude below the normal magnitude and a massage frequency longer than the normal frequency causing the pump to cycle at a second pulse rate and having a second flow rate over a second time duration.

In one embodiment, an oral irrigator including a reservoir, a tip fluidly connected to the reservoir, a motor having a drive shaft, and a pump. The pump includes a pump body including a pump inlet fluidly connected to the reservoir and a pump outlet fluidly connected to the tip, a spiral pinion gear including a plurality of pinion gear teeth that curve along their length, and a spiral driven gear including a plurality of driven gear teeth that mesh with the pinion gear teeth. The pump also may include a connecting rod eccentrically connected to the driven gear and a piston and received within the pump body. Movement of the drive shaft causes the pinion gear to rotate, causing the driven gear to rotate, translating the connecting rod and moving the piston laterally within the pump body to pull fluid from the reservoir and push the fluid to the tip.

An oral irrigator includes a drive assembly, a pump assembly, and a flexible membrane seal. The drive assembly is received within a housing. The pump assembly is positioned at least partially within a pump chamber. The pump assembly includes a piston and a connecting rod coupled to the drive assembly, the connecting rod movable between first and second positions through operation of the drive assembly. The flexible membrane seal extends from an interior surface of the pump chamber to the connecting rod to fluidly seal an open end of the pump chamber. The flexible membrane seal deforms from a first orientation to a second orientation as the connecting rod moves from the first position to the second position.

A showerhead is disclosed including a first nozzle, a second nozzle, and a massage mode assembly in fluid communication with a fluid inlet, the first nozzle and the second nozzle. The massage mode assembly includes a turbine, a cam coupled to the turbine defining a dwell edge that extends between a leading corner and a follower corner, and a shutter movably coupled to the cam, where movement of the turbine causes the cam to drive shutter between a first position covering the first nozzle and opening the second nozzle and a second position opening the first nozzle and covering the second nozzle.

The present disclosure includes embodiments directed to an oral cleansing device. The device, such as a toothbrush, may include a handle, a drive assembly configured to generate an oscillating motion, a shaft coupled to the drive assembly defining a lumen and extending into the handle. The cleaning device may also include a brush tip, including a brush head and an outlet nozzle, releasably connected to the shaft and defining a conduit in fluid communication with the lumen. The shaft transfers motion from the drive assembly to the brush head.