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1. 发明授权

US4469983A Electric lamp with an envelope seal designed as pinch seal, and a device and method for its manufacture 失效
标题翻译：具有设计为夹紧密封的信封密封件的电灯，以及用于其制造的装置和方法
公开(公告)号：US4469983A
公开(公告)日：1984-09-04
申请号：US350036
申请日：1982-02-18
申请人： Helmut Grahmann , Dieter Hofmann , Alfred Wacker
发明人： Helmut Grahmann , Dieter Hofmann , Alfred Wacker
IPC分类号： H01J61/36 , H01J5/32 , H01J9/32 , H01J5/38 , H01K1/38
CPC分类号： H01J9/32 , H01J5/32
摘要： The lamp has a pinch seal which surrounds a mounting structure carrying l-in wires of the filament;the front face (7) terminating the lamp envelope end forms substantially a plane, and is arranged at right angle to the generated surface of the lamp envelope (1) with the transition of these two surfaces to one another being substantially in the shape of a circumferential edge,the length of the pinch seal (2) extending from the front face (7) on the axis of the lamp envelope is from 0.2 to 0.4 times the external diameter of the lamp envelope (1),and the width of the pinch seal is close to the external diameter of the lamp envelope. To form this shape, the lamp is introduced into a die, with the envelope softened and, during execution of the pinch operation, excess gas pressure is applied to the interior of the lamp envelope so that the lamp envelope will accurately follow the shape of the pinch jaws similar to a blow-molding operation. The excess gas can be introduced into the lamp envelope for example through an exhaust tube forming part of the mounting structure, which is later on used for exhaustion and filling of the lamp and then sealed off.
摘要翻译：所述灯具有夹紧密封件，所述密封件围绕承载所述灯丝的引入线的安装结构; 端接灯壳端部的前表面（7）基本上形成一个平面，并且被布置成与灯壳（1）的所产生的表面成直角，这两个表面彼此之间的过渡基本上形成为圆周边缘，从灯罩的轴线上的前表面（7）延伸的夹紧密封件（2）的长度是灯外壳（1）的外径的0.2至0.4倍，夹紧的宽度密封件接近灯泡的外径。为了形成这种形状，灯被引入模具中，其中信封被软化，并且在夹紧操作的执行期间，过多的气体压力被施加到灯泡的内部，使得灯泡将精确地跟随夹头钳类似于吹塑操作。可以例如通过形成安装结构的一部分的排气管将过量的气体引入灯泡中，该排气管稍后用于灯的排气和填充，然后被密封。

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