Fluid dispensing and mixing apparatus
AssigneeE. I. Du Pont de Nemours and Company
InventorsJohn Arnold Crowell, Jean Rene Boutin
Life of this patent
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Abstract
A hydraulically actuated knife punctures a container of chemicals, dispenses them to a storage reservoir and simultaneously therewith dilutes and mixes the chemicals with water. Next, a spray directed along the knife automatically washes the interior of the container to insure that all of the chemicals are removed. Once the container is punctured, the contents of the container spill down over and about the knife and into the storage reservoir. When the hydraulic pressure is released, the knife, which is springloaded when actuated, returns to its original position.
Claims11
Apparatus for dispensing a first fluid from a container and mixing said first fluid with a second fluid comprising:
- a housing having an axis,
- a piston movable in said housing along said axis and dividing said housing into driving and mixing chambers,
- said piston defining a first orifice interconnecting said chambers,
- a piercing member secured to said piston,
- means communicating with said mixing chamber to position a container of a first fluid on said axis of said housing for puncture by said piercing member, and
- means for introducing a second fluid under pressure into said driving chamber for driving said piston along said axis to puncture said container positioned for puncture and to intermix said first fluid and said second fluid from said first orifice.
Dependencies are inferred from the claim text.