Abstract: It is a warning device for a given liquid level in any dripping bottle; the device is furnished with a photo-electronic sensor, which can, through a detecting hole, sense the liquid level of a dripping bottle, and then sends a signal to a control circuit to drive a buzzer to generate a sound signal, whereby the nurse or the like is to be reminded that the liquid will be used up soon.

Abstract: A pen type dispenser structure attachable to a container for ink correction liquid. The dispenser includes a frusto-conical liner wall formed into a spiral configuration; a shaft extends from the small end of the liner wall into a liquid discharge opening formed in the tip end of a surrounding cover. A manually-squeezable lever is mounted on the container for rotating the cover. A wedge surface on the cover interior surface is slidably engaged with a wedge surface on the spiral liner wall, such that rotation of the cover causes the spiral liner to move the internal shaft away from the liquid discharge opening at the tip end of the cover.

Abstract: A comb structure that includes a handle, and a hollow housing having a number of hollow teeth extending away from the handle. Communicating cavities in the handle and housing provide storage for a liquid ointment that can infiltrate out through holes at tip areas of the teeth. The comb structure can be drawn through fur on a live animal (pet) or fur on a leather pelt, such that the ointment is directed onto the skin surface of the animal or leather pelt, so as to prevent skin diseases or provide lubrication against fur loss or leather cracking. In one form of the invention the handle is adjustably connected to the tooth housing so that the structure can be used either in rake-like fashion or in comb-like fashion.