Apparatus for dispensing powdered material
First Claim
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1. An apparatus for dispensing a regulated amount of powdered material, comprising:
- a repository for powdered material, said repository having a compressible body portion, a first end forming a base of said body portion, and a second end opposite to said first end defining an outlet; and
a hollow conduit connecting the interior of said repository to said outlet, said conduit arranged to extend from said first end of said repository to said outlet and comprising;
a first opening defining an entrance to said conduit and in substantial abutment with an internal wall of said repository to seal said first opening; and
a second opening adjacent to said first opening and in the wall of said conduit, said second opening defining a restriction that regulates the amount of powdered material delivered through said conduit to said outlet; and
wherein said body portion of said repository is configured to be compressed such that a volume of air is propelled through powdered material resting in said repository, thereby entraining the powdered material and carrying the entrained powdered material in an upward direction through said conduit and out of said repository via said outlet, and wherein the entrained powdered material passes to said conduit from said repository through said second opening of said conduit.
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Abstract
The invention relates to an apparatus for dispensing a restricted amount of powdered material, comprising a repository (2) for powdered material (4), an outlet (12), and a conduit (3). The apparatus defines an airway arranged to enable air to be drawn through the resting powdered material in the repository, thereby entraining the powdered material in the airflow and drawing the air and entrained powdered material through the conduit. The air and entrained powdered material is thereafter expelled out of the outlet. Additionally, the invention relates to a dip tube (3) for use in apparatus for dispensing a powdered material.
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Citations
20 Claims
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1. An apparatus for dispensing a regulated amount of powdered material, comprising:
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a repository for powdered material, said repository having a compressible body portion, a first end forming a base of said body portion, and a second end opposite to said first end defining an outlet; and a hollow conduit connecting the interior of said repository to said outlet, said conduit arranged to extend from said first end of said repository to said outlet and comprising; a first opening defining an entrance to said conduit and in substantial abutment with an internal wall of said repository to seal said first opening; and a second opening adjacent to said first opening and in the wall of said conduit, said second opening defining a restriction that regulates the amount of powdered material delivered through said conduit to said outlet; and wherein said body portion of said repository is configured to be compressed such that a volume of air is propelled through powdered material resting in said repository, thereby entraining the powdered material and carrying the entrained powdered material in an upward direction through said conduit and out of said repository via said outlet, and wherein the entrained powdered material passes to said conduit from said repository through said second opening of said conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification