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US 12,584,224 B2Granted
Coating apparatus
AssigneePilkington Group Limited
InventorsIan Ross Williams, Deborah Raisbeck, Douglas Martin Nelson, Kevin David Sanderson
Life of this patent
Estimating the term…
Abstract
An apparatus is provided for coating deposition, particularly by chemical vapour deposition, on three-dimensional glass articles such as bottles. The apparatus lends itself to incorporation in a plant for a continuous production process for glass containers.
Claims15
An apparatus for coating three dimensional glass vessels comprising:
- a tunnel, having a top and first and second sidewalls, suitable for arranging on a conveyor belt such that the conveyor belt transports the vessels from an upstream end, at which vessels enter the tunnel, to a downstream end, at which vessels exit the tunnel;
- a linear array of nozzles, arranged on at least one side wall to deliver a jet of gas, which jet traverses the path of vessels conveyed through the tunnel;
- at least one exhaust aperture arranged on a sidewall, the exhaust aperture being configured to be in communication with a source of negative pressure, wherein every exhaust aperture arranged on a sidewall is located closer to the downstream end of the tunnel than the linear array of nozzles;
- and
- a damper plate, moveable to vary the effective size of the at least one exhaust aperture;
- wherein at least one of the linear array of nozzles comprises a tapered portion, wherein a cross-sectional area of the tunnel extends between the first and second sidewalls of the tunnel, the top of the tunnel, and the conveyor belt, and wherein the cross-sectional area of the tunnel is between 1.5 and 2.5 times greater than the cross-sectional area of an exhaust aperture.
3 more elements
An apparatus for coating three dimensional glass vessels comprising:
- a tunnel, having a top and first and second sidewalls, suitable for arranging on a conveyor belt such that the conveyor belt transports the vessels from an upstream end, at which vessels enter the tunnel, to a downstream end, at which vessels exit the tunnel;
- a linear array of nozzles, arranged on at least one side wall to deliver a jet of gas, which jet traverses the path of vessels conveyed through the tunnel;
- and
- at least one exhaust aperture arranged on a sidewall, the exhaust aperture being configured to be in communication with a source of negative pressure;
- wherein a cross-sectional area of the tunnel extends between the first and second sidewalls of the tunnel, the top of the tunnel, and the conveyor belt, and wherein the cross-sectional area of the tunnel is between 1.5 and 2.5 times greater than the cross-sectional area of an exhaust aperture.
2 more elements
Dependencies are inferred from the claim text.