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. 25, 2001
Filed:
Mar. 10, 1999
Heinfried Hoffmann, Frankfurt am Main, DE;
Lothar Kemmler, Moerfelden-Walldorf, DE;
Samson Aktiengesellschaft, Frankfurt, DE;
Abstract
The present invention is directed to an electrical field device of the pressure-resistant encapsulation type of protection for use in areas at risk of explosion and has at least a first and second mechanically and electrically coupled modules. The first module includes a connection space for the connection of the field device in an explosion-hazard area with safety barrier arranged therein and has a housing of the type of protection of the pressure-resistant encapsulation. The second module includes a field device of the self-secured type of protection and the electrical connection between the two modules comprises an arc-over-proof lead bushing, and the electrical signal connections of the second module are realized via the lead bushing.