Patent · US Expired

Vibration, shock and heat-resistant lamp-base combination structure

US5153480A · kind A · utility

4Cited by

5References

20Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Walter Schoenherr · Giengen an der Brenz, DE
Alfred Braun · Baar, CH
Hermann Steiner · Herbrechtingen, DE

Key dates

Filing date	Jul 8, 1991
Grant date	Oct 6, 1992
Priority date	—
Expiry date	Jul 8, 2011

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21V19/0005
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

To improve shock and vibration resistance and heat dissipation of an attaent element (1) coupling the pinch seal (3) of a halogen incandescent lamp (2) to a plastic base (6), the attachment element is formed of two identical half-sections, surrounding the pinch seal in the shape of a cuff (4) and connected to a flange or skirt by an intermediate heat dissipation and shock absorbing portion (7, 11, 12, 13, 14). Preferably, the intermediate portion forms a connecting section, which can be bent into U or double U configuration off the upper region of the flange or skirt portion (8a, 8b), to provide a large heat radiating surface while retaining the pinch seal of the lamp between undulating sheet-metal portions. Preferably, the attachment element is made of unitary sections of high-quality specialty steel.

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