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:
Oct. 02, 2007
Filed:
Oct. 17, 2005
George Youzhi Yi, Fremont, CA (US);
Kuang Hsin Hsu, Taipei, TW;
Hung-ting Lin, Taipei, TW;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A chassis utilizes spring fingers having contact portions and mid portions where each spring finger forms multiple cantilevers to provide different spring constants. Accordingly, the increase in force resulting from displacement can be better controlled and even minimized for certain ranges of displacement. In particular, each spring finger can be configured to perform in an operating range characterized by a smaller spring constant. As a result, the force increase in this operating range is slower thus accommodating circuit boards with large connector height variations without significantly changing the normal contact force. Such operation enables the chassis to consistently pass EMI and ESD testing, as well as provide more reliable device operation.