Patent · US Expired

Method for coating lamp bulbs

US6399145B1 · kind B1 · utility

4Cited by

12References

12Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Simon Jerebic · Regensburg, DE
Frank Vollkommer · Nittenau, DE

Key dates

Filing date	Jul 11, 2000
Grant date	Jun 4, 2002
Priority date	—
Expiry date	Sep 28, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C17/004
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for coating lamp tubes in which a local drying zone tracks a liquid level of the coating material at a constant time interval. The local drying zone may be a heater or air outlet that moves in coordination with the liquid level.

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