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US 3,955,866 AGranted
Method of manufacturing a flash lamp
AssigneeU.S. Philips Corporation
InventorsJohannes Cornelis Antonie Vreeswijk, Henricus Petrus Wilhelmus Wolffensperger
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Abstract
The invention relates to a method of manufacturing a flash lamp comprising an envelope which is filled with thin strips of combustible material, in which a ball of the strip material is compressed to the desired shape in a tube by means of two dies and is annealed in that shape in a stress-free manner.
Claims9
A method of manufacturing a flash lamp having an envelope filled with thin strips of intertwined combustible material which comprises:
- providing a chamber and a reciprocally mounted first die having a peripheral face dimensioned and configured for snug fitting engagement within said chamber during reciprocation of said first die;
- introducing a quantity of intertwined elongated pieces of combustible material into said chamber;
- compressing said quantity of material to the shape of said chamber by reciprocation of said first die;
- annealing the shaped material to a stress-free state;
- inserting said shaped material into said envelope;
- and sealing said envelope.
3 more elements
Dependencies are inferred from the claim text.