Patent · US Expired

Electric lamp with a sleeve-shaped cap

US4396860A · kind A · utility

16Cited by

7References

6Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Paul Hellwig · Aachen, DE
Werner Schlagheck · Aachen, DE

Key dates

Filing date	Aug 6, 1980
Grant date	Aug 2, 1983
Priority date	—
Expiry date	Aug 6, 2000

Classification

Technology area (CPC H)Electricity
CPC primaryH01K1/46
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.