초록 ▼

A dispensing device for dispensing measured doses during each dispensing cycle. A fluid tight bottle is provided with a well at its bottom. A hollow shell fits in the well and includes an opening permitting flow of material from the bottle into the shell. A tubular stem extends from the shell throug

A dispensing device for dispensing measured doses during each dispensing cycle. A fluid tight bottle is provided with a well at its bottom. A hollow shell fits in the well and includes an opening permitting flow of material from the bottle into the shell. A tubular stem extends from the shell through the top of the bottle and terminates in a dispensing spout. Different embodiments provide different arrangements for supplying air to an air chamber in the top of the bottle so that pressure within the bottle can equalize at the end of each dispensing cycle. If the bottle is not a squeeze bottle, air is supplied to the bottom of the bottle to displace the liquid in the shell which is dispensed through the stem upon inversion of the bottle. Additional embodiments of the invention are specially constructed to dispense powders and to allow the dosage of each dispensing cycle to be adjusted.

대표청구항 ▼

Apparatus for dispensing liquid in measured amounts, said apparatus comprising: a squeezable container for holding the liquid, said container being substantially fluid tight and having top and bottom portions with said top portion presenting a chamber in the container above the liquid when the conta

Apparatus for dispensing liquid in measured amounts, said apparatus comprising: a squeezable container for holding the liquid, said container being substantially fluid tight and having top and bottom portions with said top portion presenting a chamber in the container above the liquid when the container is in an upright position; a hollow shell in said container adjacent said bottom portion thereof, said shell having an opening for entry of liquids from the container into the shell; a tube having a base end communicating with said shell to receive liquid thereform and a spout end opposite said base end for dispensing of liquid from the container, said spout end being located outside of the container adjacent said top portion thereof; and an orifice in said tube at a location intermediate said base and spout end of the tube to supply air from the outside to said chamber in the upright position of the container, whereby said container can be inverted and squeezed to dispense the liquid in said shell and tube during a dispensing cycle, said orfice acting to equalize the pressure within the container when same is returned to an upright position and additional liquid in the container flows into said shell thorough the opening therein and said orifice providing a path for liquid to enter said tube from the container during each dispensing cycle.