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:
Aug. 07, 2007
Filed:
May. 27, 2005
Applicant:
Kei-wean C. Yang, Beaverton, OR (US);
Inventor:
Kei-Wean C. Yang, Beaverton, OR (US);
Assignee:
Tektronix, Inc., Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A measurement probe has a spring loaded probe assembly and a pressure sensor disposed in a housing. The pressure sensor forms an electrical switch for passing an activation signal to a EOS/ESD protection module in response to axial movement of the housing relative to the probe assembly. A first compressive element produces a first pre-loaded compressive force and an increasing compressive force on the probe assembly and a second compressive element produces a second pre-loaded compressive force and an increasing compressive force on the probe assembly subsequent to the first increasing compressive force.