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:
Nov. 17, 1987
Filed:
Nov. 04, 1986
Applicant:
Inventor:
Frederick T Cogan, London, CA;
Assignee:
Mitel Corporation, , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; H05K / ;
U.S. Cl.
CPC ...
361390 ; 361391 ; 361412 ; 361415 ;
Abstract
An expandable moulded cabinet for housing printed circuit boards, which is modular and uses only two kinds of parts. Instead of printed circuit board retainers and a backplane being fastened to a cabinet frame, which would require careful attention to tolerances, the retainers are held by the cabinet in approximately correct positions, and the backplane is supported by and is fixed directly to the retainers alone, and not the cabinet. Thus the only precision tolerances required are to the locations on the backplane where the printed circuit board retainers are supported. An inexpensive and versatile cabinet results.