Patent · US Active

Reed switch contact coating

US7564330B2 · kind B2 · utility

3Cited by

8References

18Claims

0Family size

Assignee

KEY SAFETY SYSTEMS, INC. · US

Inventors

Mark Pickhard · Superior, US
John Wineke · Superior, US
David Andrew G. Lea · Vancouver, CA
Andrew Petraszak · Superior, US
Steve Topel · Superior, US
Tom Lenz · Fort Atkinson, US

Key dates

Filing date	Apr 18, 2007
Grant date	Jul 21, 2009
Priority date	—
Expiry date	Jan 11, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01H36/0006
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A reed switch has a contact surface composed of three layers of metal applied to the contacts of the reed switch. The three layers comprise first a layer of titanium of approximately 15 to 150 micro inches, second a layer of molybdenum of 15 to 150 micro inches, and finally a contact layer of 5 to 20 micro inches of ruthenium, or other platinum group metal or alloy. The layers may be applied by any suitable methods, for example by sputtering.

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