Metering method for particulate material
AssigneeGlaxo Group Limited
InventorsStanley George Bonney, Howard Peter Duffield
Life of this patent
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Abstract
There is provided a method for metering a quantity of a particulate material onto the surface of a porous retainer comprising the steps of: exposing a first surface of a porous retainer to a pool of particulate material; applying a vacuum to a second surface of the porous retainer to meter material on the first surface; and adjusting the level of the vacuum to regulate the quantity of material metered on the retainer.
Claims30
A method for metering a quantity of a particulate material onto a porous retainer comprising
- exposing a first surface of said porous retainer to said particulate material;
- applying a vacuum to a second surface of the porous retainer to meter material onto said first surface;
- and
- adjusting the vacuum to regulate the quantity of material metered onto the first surface of the retainer.
A method according to any preceding claim, wherein the quantity of particulate material metered on the retainer is in the range of 1 μg to 100 mg.
A method according to any of the preceding claims, additionally comprising covering the first surface of the porous retainer with a perforated mask.
A method according to preceding claim, wherein said particulate material comprises a medicament.
Dependencies are inferred from the claim text.