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:
Dec. 28, 1982
Filed:
Aug. 29, 1980
Applicant:
Inventors:
Kouji Watanabe, Yokohama, JP;
Hiroshi Tokudome, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01R / ;
U.S. Cl.
CPC ...
339 / ; 3391 / ; 3391 / ;
Abstract
A connector having polarity which comprises a plug and a jack. At least one polar key is provided on the plug so as to avoid erroneous insertion of the jack into the plug. A guide groove is provided on the jack at a position corresponding to the polar key in a normal position of this jack with respect to the plug. A projection is formed on the top end of the polar key and extends in the direction of insertion or withdrawal of the jack. A recess for receiving the projection is formed in the front surface of the jack at a position corresponding to the polar key in a reversed position of the jack with respect to the plug.