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:
Feb. 14, 2006
Filed:
Feb. 03, 2004
Applicants:
Yoshifumi Okuda, Shiga, JP;
Yahiko Iwasaki, Shiga, JP;
Inventors:
Yoshifumi Okuda, Shiga, JP;
Yahiko Iwasaki, Shiga, JP;
Assignee:
Daifuku Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02P 5/15 (2006.01);
U.S. Cl.
CPC ...
Abstract
When a knocking detector mounted on a cylinder block of an engine is inspected, the cylinder block is vibrated by a vibrating unit via a housing connected to the cylinder block, and the performance of the knocking detector is judged based on whether or not a peak value of a voltage variation value serving as a detection value of the knocking detector is below a threshold value which has been set based on a peak value of a test voltage variation value serving as a reference value.