Gas discharge lamp and method for the production thereof
AssigneePatent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
InventorsMichael Seibold, Michael Ilmer, Angela Eberhardt
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Abstract
A gas discharge lamp having a discharge vessel, for example composed of a base plate, front plate (2) and frame (3), has at least one closure element (6) which closes a discharge vessel opening in a gas-tight fashion by virtue of the fact that the closure element (6) was inserted into the discharge vessel opening and subsequently fused. The closure element (6) consists of a material which is low-melting by comparison with the remainder of the discharge vessel, for example sintered glass. It is possible to dispense with an additional connecting means between the closure element (6) and the adjacent wall of the discharge vessel (2).
Claims8
A gas discharge lamp comprising a discharge vessel having a base plate, a front plate and a frame connecting the base plate and the front plate, the discharge vessel having a filling opening in the front plate or the frame, the filling opening being fitted with a closure element comprising a collar and sleeve having a bore, the closure element consisting of a material having a softening temperature below the softening temperature of the discharge vessel materials, the closure element when softened by heating fusing to the discharge vessel and closing the filling opening in a gas-tight fashion.
A gas discharge lamp comprising a discharge vessel having a base plate, a front plate and a frame connecting the base plate and the front plate, the discharge vessel having a filling opening in the front plate or the frame, the filling opening being fitted with a closure element comprising a stopper, the closure element consisting of a material having a softening temperature below the softening temperature of the discharge vessel materials, the closure element when softened by heating fusing to the discharge vessel and closing the filling opening in a gas-tight fashion.
A method for producing a gas discharge lamp comprising:
- (a) fitting a closure element in a filling opening of a discharge vessel, the discharge vessel having a back plate, a front plate and a frame connecting the front and back plates, the filling opening being in the front plate or the frame, the closure element comprising a collar and sleeve having a bore, the closure element consisting of a material having a softening temperature below the softening temperature of the discharge vessel materials;
- (b) heating the discharge vessel to a temperature sufficient to cause the closure element to soften and fuse to the discharge vessel thereby closing the filling opening in a gas-tight fashion.
Dependencies are inferred from the claim text.