Carl R Rhoads

US Patent:

58966536, Apr 27, 1999

Filed:

Jul 15, 1997

Appl. No.:

8/893009

Inventors:

Carl R. Rhoads - Rosamond CA
Michael H. Granneman - Lancaster CA
Kelly G. Ralston - Lancaster CA

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H01R 4300
C25F 302
C25F 700
H01M 210

US Classification:

29855

Abstract:

A low voltage, low current power supply and chemical etching tool includes a container and a D. C. voltage source sealed within the container. The D. C. voltage source may be one or more batteries that together generate less than 18 volts and 1. 7 amps. Electrical leads are connected to the D. C voltage source, and lead from the container through openings in the container cap. The electrical leads have no splices external to the container. The openings through which the electrical leads pass are sealed. One of the electrical leads is connected to an electro-chemical etching head. The other electrical lead is connected to a connecting clip to be attached to the part to be marked by the etching process.