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:
May. 30, 1989
Filed:
Dec. 10, 1987
Applicant:
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361357 ; 361344 ; 200 4322 ; 200 5112 ; 174 5054 ;
Abstract
An explosion-proof electrical unit comprises an explosion-protected chamber for leading-in current conductors and an explosion-protected equipment chamber divided by a blast-resistant wall, and through current conducting terminals secured on the blast-resistant wall. The current conducting part of each terminal inlcudes at least two elements, of which one such element is movable. In one extreme position of the movable element this movable element and the fixed element are electrically closed, whereas in the other extreme position of the movable element they are open. A cavity formed between the movable and fixed elements of the current conducting part of each through terminal is explosion-protected.