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:
Oct. 20, 1998
Filed:
Nov. 10, 1997
Applicant:
Inventor:
Tetsuya Tamura, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361730 ; 361732 ; 361735 ; 439928 ; 439953 ;
Abstract
A computer system is implemented by a plurality of electronic modules having different parts, cascaded in the vertical direction and each having a similar configuration. Adjacent two of the modules are coupled by rotating a pair of lock dials to a lock position at which the locked pin of the protrusion is engaged with a helical groove formed in the lock dials. A common signal bus is formed by engagement of a plug and receptacle at the locked position. The adjacent modules are separated by rotating the lock dial to an open position.