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:
Jun. 28, 2011
Filed:
Jul. 16, 2008
Microcontactor probe with reduced number of sliding contacts for conduction, and electric probe unit
Applicant:
Toshio Kazama, Ina, JP;
Inventor:
Toshio Kazama, Ina, JP;
Assignee:
NHK Spring Co., Ltd., Yokohama-shi, Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order for a conduction path to have a reduced number of sliding portions for conduction, without increase in inductance nor resistance, thereby permitting an enhanced accuracy of inspection, a pair of plungers () biased in opposite directions by a coil spring (), to be electrically connected to a wiring plate (), have electrical connections in which, in a tubular portion () as a tight wound spiral portion () fixed on one plunger () to allow linear flow of electrical signal, the other plunger () is brought into slidable contact.