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:
Sep. 18, 1990
Filed:
Sep. 26, 1989
Abstract
The flame-proof electric device includes a flame-proof partition separating a flame-proof lead-in chamber for the current conductors and power supply cable and a flame-proof component chamber. The flame-proof partition has mounted thereon an interlocking disconnecting switch, a flame-proof casing and at least one first, at least one second and at least one third lead-through current-conducting terminals. The first lead-through current-conducting terminal is connected with the power supply cable and the interlocking disconnecting switch which is also connected through a serial connection of the third and second lead-through current-conducting terminals with the components of the electric circuitry within the flame-proof component chamber.