The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2009
Filed:
Apr. 18, 2007
Mark Pickhard, Lake Mills, WI (US);
John Wineke, Lake Mills, WI (US);
David Lea, Johnson Creek, WI (US);
Andrew Petraszak, Lake Mills, WI (US);
Steve Topel, Lake Mills, WI (US);
Tom Lenz, Fort Atkinson, WI (US);
Mark Pickhard, Lake Mills, WI (US);
John Wineke, Lake Mills, WI (US);
David Lea, Johnson Creek, WI (US);
Andrew Petraszak, Lake Mills, WI (US);
Steve Topel, Lake Mills, WI (US);
Tom Lenz, Fort Atkinson, WI (US);
Key Safety Systems, Inc., Sterling Heights, MI (US);
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.