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    Method for heat sealing metal sleeves to an insulated sleeve
    1.
    发明授权
    Method for heat sealing metal sleeves to an insulated sleeve 失效
    用于将金属密封件热封到绝缘套管上的方法

    公开(公告)号：US3861896A

    公开(公告)日：1975-01-21

    申请号：US37627973

    申请日：1973-07-05

    Applicant: BELKNAP DONALD J

    Inventor： BELKNAP DONALD J

    IPC: H01K1/16 ,  H01K3/00 ,  C03C27/02

    CPC classification number: H01K1/16 ,  H01K3/00

    Abstract: Microminiature incandescent lamp having a tubular envelope with a glass central section and metal end sections heat-sealed to the central section. The envelope contains a filament coil secured to the end sections by mechanical cold-weld pinch-offs that seal the previously evacuated envelope. Envelopes are formed seriatim by feeding the components to an assembly station where the end sections are partially inserted into the central section. The resulting assesmblies are conveyed to a sealing station where heat is directed only to the metal end regions of the envelope, so that only the end regions of the glass section are deformed in sealing. Filaments are formed and inserted into the envelopes by pulling a length of filament wire through a tubular guide, inserting an envelope over the guide, winding a filament coil from the end of the filament wire projecting from the guide, and then pulling the envelope over the finished filament. The outer diameter of the filament coil is initially greater than the inner diameter of the end sections ofthe envelope, so that the coil is stretched in length and reduced in diameter when it is drawn into the envelope.

    Abstract translation: 微型白炽灯具有具有玻璃中心部分的管状外壳和热封到中心部分的金属端部。 信封包含通过机械冷焊夹紧固定到端部的细丝线圈，密封先前抽空的外壳。 信封通过将部件供给到组装工位而形成，其中端部部分部分插入中心部分。 将所得到的集合体输送到密封站，在该密封站处仅将热量引导到封套的金属端部区域，使得只有玻璃部分的端部区域在密封中变形。 通过将一段细丝丝拉过管状引导件，将一个封套插入引导件上，从引线突出的细丝线的端部缠绕细丝线圈，然后将信封拉过 成品丝。 灯丝线圈的外径最初大于封套的端部部分的内径，使得线圈在拉入外壳时长度被拉伸并且直径减小。

    Incandescent lamps having preformed filament units
    2.
    发明授权
    Incandescent lamps having preformed filament units 失效
    具有预成形丝单元的白炽灯

    公开(公告)号：US3914640A

    公开(公告)日：1975-10-21

    申请号：US37253573

    申请日：1973-06-22

    Applicant: BELKNAP DONALD J

    Inventor： BELKNAP DONALD J

    IPC: H01K1/02 ,  H01K3/00

    CPC classification number: H01K1/02 ,  H01K3/00

    Abstract: Axial-geometry incandescent lamps with accurately aligned, selfcentering helical filaments are disclosed, the filaments having heavy end sections which are mechanically deformed to grip a helical center section. Tubular lamp envelopes have a glass center section and metal end sections heat-sealed thereto. Envelopes are produced in quantity by a machine having magazines loaded with envelope components, the components being automatically assembled and united by heat sealing. Envelopes of larger size may employ glass-beaded metal end sections formed before the end sections are assembled with the center section. Rotation of the envelope components during heat sealing ensures seal uniformity and concentricity.

    Abstract translation: 公开了具有精确对准的自定心螺旋细丝的轴向几何白炽灯，所述长丝具有机械变形以夹持螺旋中心部分的重端部。 管状灯罩具有玻璃中心部分和热封在其上的金属端部。 信封由装有信封部件的杂志的机器数量生产，组件通过热封自动组装和联合。 较大尺寸的信封可以使用在端部与中心部分组装之前形成的玻璃珠状金属端部。 热封过程中包络部件的旋转可确保密封均匀性和同心度。

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