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US 4,396,860 AGranted
Electric lamp with a sleeve-shaped cap
AssigneeU.S. Philips Corporation
InventorsPaul Hellwig, Werner Schlagheck
Life of this patent
Estimating the term…
Abstract
In an electric lamp with a sleeve-shaped cap and an inner sleeve carrying the bulb, the cap has at least two lugs protruding inwards and the inner sleeve is provided with at least two slots on its cylindrical sheath, which engage the lugs.
Claims6
An elongated electric lamp having an axis which comprises:
- a bulb, a sleeve-shaped cap, and a cylindrical inner sleeve carried in said sleeve-shaped cap, said cylindrical inner sleeve having first and second axial extremities and carrying said bulb at said first axial extremity, said sleeve-shaped cap having at least two lugs extending inwardly, said cylindrical inner sleeve having at least two slots extending in the direction of said lamp axis, said slots opening into said second axial extremity of said inner sleeve and engaging said lugs.
Dependencies are inferred from the claim text.