Abstract: A wave transmission gearbox includes an output wheel, a deformable gear band, a low profile fixed spline, a wave generator, and a flexible-band-compensating rigid torque transmitter. The deformable gear band has external teeth transmitting relative torque motion to the output wheel, and is as wide as its external teeth. The low profile fixed spline has internal teeth meshing with the external teeth of the deformable gear band, and has a width which is a function of the width of the deformable gear band. The wave generator deforms the deformable gear band within the low profile fixed spline to generate relative torque motion between the deformable gear band and the low profile fixed spline. The flexible-band-compensating rigid torque transmitter transfers relative torque motion from the deformable gear band to the output wheel.

Abstract: A high transmission ratio gearbox of ring shape for easy integration inside mechanisms with limited space and robotic rotating joints for moving robotic arms. The toroidal gearbox includes at least one dual function gear, a toroidal spiral face drive to mesh with the at least one dual function gear and a cylindrical gear to mesh with the at least one dual function gear.

Abstract: A high transmission ratio gearbox of ring shape for easy integration inside mechanisms with limited space and robotic rotating joints for moving robotic arms. The toroidal gearbox includes at least one dual function gear, a toroidal spiral face drive to mesh with the at least one dual function gear and a cylindrical gear to mesh with the at least one dual function gear.

Abstract: A device for freshening breath includes a hollow housing sized to be placeable over a finger, a brush unit for brushing teeth, the brush unit being integrally formed with the housing and including a plurality of bristles; and breath freshening fluid held via surface tension within the brush unit and releasable upon of contact of the brush unit with the teeth.

Abstract: A device for freshening breath includes a hollow housing sized to be placeable over a finger, a brush unit for brushing teeth, the brush unit being integrally formed with the housing and including a plurality of bristles; and breath freshening fluid held via surface tension within the brush unit and releasable upon of contact of the brush unit with the teeth.