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US 9,358,338 B2Granted
Particle cassettes and processes therefor
AssigneePowder Pharmaceuticals Incorporated
InventorsNigel R. Bates, Philip T. Price
Life of this patent
Estimating the term…
Abstract
An article for use in manufacturing particle cassettes comprising one or more single pieces of membrane having a plurality of gas flow passages bonded thereto. The article allows convenient manufacture of particle cassettes. Two such articles may be employed to provide a finished particle cassette and a production line in which a plurality of gas flow passages are conveyed on a single membrane is disclosed.
Claims18
An article for use in manufacturing particle cassettes, the article comprising:
- a single piece of first membrane film capable of being ruptured by gas under pressure;
- a single piece of second membrane film capable of being ruptured by gas under pressure;
- a plurality of first cassette parts laterally offset from one another and attached to the first membrane film;
- a plurality of second cassette parts laterally offset from one another wherein each of the plurality of second cassette parts is attached to the second membrane film via a sealing face,
- wherein the plurality of first cassette parts are joined to the plurality of second cassette parts with the second membrane film interposed in between the plurality of first cassette parts and the plurality of second cassette parts, and
- wherein the plurality of first cassette parts and the plurality of second cassette parts form a gas flow passage.
3 more elements
A method of making an article for use in manufacturing particle cassettes, the method comprising:
- passing a single piece of first membrane film through a roller;
- and
- attaching a plurality of first cassette parts to the single piece of first membrane film by bringing together a first platen carrying the plurality of first cassette parts and a second platen,
- wherein the plurality of first cassette parts are laterally offset from one another, and
- wherein each of the plurality of first cassette parts defines a gas flow passage closed off at one end by the single piece of first membrane film.
2 more elements
Dependencies are inferred from the claim text.