24/06/2005 - Controller General of Patents, Designs, and Trade Marks

(21) Application No. 3691/DEL/1997 A (22) Date of filing of Application: 18/12/1997
(54) Title of the invention: “METHOD FOR PRODUCING CELICALLY WOUND
LUMINOUS ELEMENTS”.
(51) International Classification 7 : H01K 3/02,
H01K 9/02
(30) Priority Data:
(31) Document No.: 196 53 572.7
(32) Date: 20/12/1996
(33) Name of convention country: GERMANY
(66) Filed U/s 5(2): NIL
(61) Patent of addition to application No.: NA
(62) Filed on: NA
(63) Divisional to Application No.: NIL
(64) Filed on: NA
Total No Of Pages: 19
(57) Abstract:
(71) Name of the applicant:
PATENT-TREUHAND-GESELLSCHAFT
FUR ELEKTRISCHE GLUEHLAMPEN
MBH
Address of the Applicant:
Hellaabrunner Str. 1. 81543 Munchen,
Germany.
(72) Name of the Inventor:
JUERGEN EDER
HANS LIERMANN
PETER SCHMIDT
REINHARD SPRENGER
The method is distinguished in that a thermal treatment of the incandescent wire at temperatures
of over 1200 0 C takes place already before the winding of the incandescent wire, so that, after
separation, the coil springs open and can easily be detached from the core wire.
18181