Abstract: One embodiment of an actuator system for a power dental cleaning appliance to produce a tapping motion of bristle tufts in a dental cleaning appliance includes a plurality of piston elements (16) mounted in a brushhead for movement away from and then toward the brushhead (12). Bristle tufts (20) are positioned on the piston elements and move sequentially against and away from the teeth to produce a cleaning action. A low frequency fluid pressure action (40) in the range of 1-6 Hz maintains conformity of the bristle tufts in a low frequency sequence against the teeth, while a higher frequency fluid pressure action (42) in the range of 100-300 Hz moves the bristle tufts at that frequency to produce a tapping bristle action on the teeth to produce cleaning. In another embodiment, an actuation system includes an elongated actuator member (52) made of elastic material which expands and contracts about its longitudinal axis at a selected frequency by fluid pressure.

Abstract: One embodiment of an actuator system for a power dental cleaning appliance to produce a tapping motion of bristle tufts in a dental cleaning appliance includes a plurality of piston elements (16) mounted in a brushhead for movement away from and then toward the brushhead (12). Bristle tufts (20) are positioned on the piston elements and move sequentially against and away from the teeth to produce a cleaning action. A low frequency fluid pressure action (40) in the range of 1-6 Hz maintains conformity of the bristle tufts in a low frequency sequence against the teeth, while a higher frequency fluid pressure action (42) in the range of 100-300 Hz moves the bristle tufts at that frequency to produce a tapping bristle action on the teeth to produce cleaning. In another embodiment, an actuation system includes an elongated actuator member (52) made of elastic material which expands and contracts about its longitudinal axis at a selected frequency by fluid pressure.

Abstract: The invention relates to a massage device (1). The massage device (1) comprises a first support (32), a second support (30) and a deformable connector (36). The first support (32) has a massage face (34). The second support (30) has a protrusion (31) for accommodating an electrical coil (8). During use of the massage device (1), electrical coil 8 conducts an electrical current. First support (32) is provided with an electro-magnetic system (15) comprising permanent magnets (14, 24) or one or more electrical coils, magnetically conductible bodies or a combination thereof. First support (32) is connected to second support (30) by a deformable connector (36). As a result of electro-magnetic interaction a force indicated by an arrow (56) is exerted on protrusion (31). The first support (32) may be displaced relative to the second support (30).

Abstract: The invention relates to a massage device (1). The massage device (1) comprises a first support (32), a second support (30) and a deformable connector (36). The first support (32) has a massage face (34). The second support (30) has a protrusion (31) for accommodating an electrical coil (8). During use of the massage device (1), electrical coil 8 conducts an electrical current. First support (32) is provided with an electromagnetic system (15) comprising permanent magnets (14, 24) or one or more electrical coils, magnetically conductible bodies or a combination thereof. First support (32) is connected to second support (30) by a deformable connector (36). As a result of electro-magnetic interaction a force indicated by an arrow (56) is exerted on protrusion (31). The first support (32) may be displaced relative to the second support (30).