Single-ended incandescent lamp having a simplified filament-mount专利检索-卤素灯白炽灯光源手电筒灯光专利检索查询-专利查询网

Single-ended incandescent lamp having a simplified filament-mount

阅读：305发布：2023-04-14

专利汇可以提供Single-ended incandescent lamp having a simplified filament-mount专利检索，专利查询，专利分析的服务。并且The coiled-coil filament of a quartz-halogen lamp is provided with a continuously-wound leg at each end and is suspended in coaxial position within the tubular envelope by a pair of lead wires that extend into and are secured directly to said legs. The filament leg at the tipped-off end of the envelope has a bent primary turn that defines an opening in the leg and the associated end of the lead wire is formed into an L-shaped hook that extends through the leg opening and into the hollow tip of the envelope.，下面是Single-ended incandescent lamp having a simplified filament-mount专利的具体信息内容。

权利要求

1. In a single-ended electric incandescent lamp having a tubular envelope that is terminated at one end by a hollow tip and is closed at its other end by a press seal, said hollow tip being substantially aligned with the axis of the envelope, a mount structure comprising; an elongated coiled-coil filament of continuously-wound refractory metal wire having a singly-coiled leg at each end that constitutes an integral part of the filament as wound and thus consists of a plurality of continuously-wound primary turns, one of said legs having a primary turn that is bent from its as-wound configuration and defines an opening in the leg that is located a predetermined distance from the free end of said leg, and means suspending said coiled-coil filament in longitudinal position within the envelope comprising a pair of rigid lead wires of unequal length that are anchored in said press seal and are secured to the legs of said filament, the longer of said pair of lead wires being disposed alongside of but spaced from said filament and being terminated by a generally L-shaped hook portion that extends through the filament leg with the bent primary turn, through the opening in said leg defined by said bent primary turn and into the hollow tip of the envelope, the part of said longer lead wire that extends alongside the filament being substantially straight, offset toward the envelope wall, and joined to the generally L-shaped hook portion of said longer lead wire by a sharp angular bend, and the end of the filament leg which is secured to said longer lead wire being seated against said sharp angular bend so that said bend thus serves as a stop for positioning the filament leg on said longer lead wire.

2. The incandescent lamp of claim 1 wherein; the generally L-shaped hook portion of said longer lead wire consists of a laterally-extending arm segment and an upstanding stud segment that is joined to said arm segment by an arcuate bend which has radius of curvature at least three times the diameter of said longer lead wire, the opening in the associated filament leg defined by the bent primary turn is located adjacent the end of the coiled-coil barrel portion of the filament and said leg extends transversely relative to the filament axis, the arm segment of said longer lead Wire is disposed within said transversely-extending leg of the filament and the arcuate bend of said lead wire extends through the opening in said filament leg, and said filament leg and the arm segment of said longer lead wire are of such length that the associated end of the suspended filament is disposed in substantially coaxial relationship with the envelope.

3. The incandescent lamp of claim 2 wherein; the other leg of said filament is disposed in substantially coaxial relationship with the filament, and the end of the short lead wire extends along the envelope axis and into said coaxially-disposed leg so that the filament is centrally positioned in the envelope.

4. The incandescent lamp of claim 3 wherein; said coiled-coil filament and pair of lead wires are composed of tungsten, a transverse bridge member is secured to said lead wires at a location adjacent the press sealed end of the envelope, said bridge member and envelope are composed of quartz, and said envelope contains an atmosphere consisting essentially of an inert fill gas and an admixed halogen.

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Single-ended incandescent lamp having a simplified filament-mount

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