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. 03, 2012
Filed:
Dec. 31, 2009
Applicants:
Chia-chieh Chang, Taipei, TW;
Chih Sheng Hou, Taipei, TW;
Chia-hung Chou, Taipei County, TW;
Inventors:
Assignee:
Universal Cement Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure sensor is provided, wherein a ballast resistive layer is integrated in the pressure sensor so that the resistive output curve for the pressure sensor has saturation characteristics. The pressure sensor shall be prevented from breaking down by a large current that may be caused, when an overload pressure is applied on the pressure sensor, if no ballast resistive layer is added.