Process and device for coating the inner surface of glass tubes
AssigneeProlux Maschinenbau GmbH
InventorsErhard Bernicke, Jurgen Dame, Rainer Munchhausen
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Abstract
A process and device are disclosed for coating with a suspension the inside of meandrous one-tube glass vessels with U-bends. After the introduction of a measured amount of a suspension, the vessel is axially rotated moving horizontally and is tilted, so that the legs of the one-tube glass vessel take a horizontal position between the reversal points of the tilting movement.
Claims17
A process for applying a coating of suspension of luminous substance to inner surfaces of a meandrous one-tube glass vessel which includes at least one U-bend, two legs and an open end on each leg and has a longitudinal axis running through the vessel's center of gravity, the process comprising injecting a measured dose of suspension into one of the open ends of the one-tube glass vessel, rotating the vessel about the longitudinal axis with a tilting motion so that the legs of the one-tube glass vessel move into and take a horizontal position between reversal points of the tilting motion, and thereafter drying the one-tube glass vessel.
A device for applying a coating of a suspension of luminous substance to inner surfaces of a meandrous one-tube glass vessel which includes at least one U-bend with open legs comprising injecting a measured dose of suspension into one of the open legs of the one-tube glass vessel, rotating the vessel about its axis with a horizontal and a tilting motion so that the legs of the one-tube glass vessel take a horizontal position between reversal points of the tilting motion, and thereafter drying the one-tube glass vessel with the open tube ends downwards, comprising an endless chain drive, a glass vessel receptacle having a built-in cam disk mounted on an endless chain drive, and drying section rotational devices to rotate the glass vessel receptacles sequentially in opposite directions with a simultaneous tilting motion.
Dependencies are inferred from the claim text.