Coating apparatus with half open loop
AssigneeArkema Inc.
InventorsOliver MEURER, Joannes Theodorus Maria WAGEMAKERS
Life of this patent
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Abstract
The present invention relates to a coating apparatus also called coating tunnel or coating hood for applying a protective coating to hollow glass containers. In particular it relates to a coating apparatus also called coating tunnel or coating hood with the re-use of the coating material containing exhaust from the end of the coating tunnel for applying the protective coatings to glass containers. More particularly the present invention relates to a coating apparatus also called coating tunnel or coating hood with an additional half-loop that re-uses the coating material containing exhaust from the end of the coating tunnel at the entrance of the tunnel while replacing fresh air.
Claims15
A coating apparatus (1) for applying a coating on glass containers with a chemical compound, said apparatus comprising:
- a housing (2) with a coating tunnel
- a conveyer belt (3) to move the containers (20) through the coating tunnel from the inlet (5) to the outlet (6) of the said coating tunnel,
- one primary loop (7), and
- a half open loop (9) going from the outlet (6) to the inlet (5) of the coating tunnel.
A process of applying a coating on the surface of glass containers comprising the steps of:
- conveying the glass containers (20) through a coating tunnel from the inlet (5) to the outlet (6),
- blowing gas comprising the coating generating compound with one primary loop (7) through the coating tunnel,
- introducing fresh air (10) at the proximity of the outlet (6) of the coating tunnel and mixing said air with at least a part of the gas comprising the coating generating compound, and
- exhausting the air that mixed with the at least a part of the gas comprising the coating generating compound through a half open loop (9) and introducing this mixture at the proximity of the inlet (5) of the coating tunnel.
A glass container onto which a coating has been applied on to its surface by a process comprising the steps of:
- conveying the glass containers (20) through a coating tunnel from the inlet (5) to the outlet (6),
- blowing gas comprising the coating generating compound with a primary loop (7),
- introducing fresh air (10) at the proximity of the outlet (6) of the coating tunnel and mixing said air with at least a part of carrier gas comprising the coating generating compound, and
- exhausting the air that mixed with the at least a part of gas comprising the coating generating compound through a half open loop (9) and reintroducing this mixture at the proximity of the inlet (5) of the coating tunnel.
A glass container onto which a coating has been applied to its surface by a coating apparatus, said apparatus comprising:
- a housing (2) with a coating tunnel,
- a conveyer belt (3) moving the containers (20) through the coating tunnel from the inlet (5) to the outlet (6) of the coating tunnel,
- one primary loop (7), and
- a half open loop (9) going from the outlet (6) to the inlet (5)of the coating tunnel.
Dependencies are inferred from the claim text.