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.

Date of Patent:
Apr. 14, 2015

Filed:

Aug. 03, 2012
Applicants:

Edward J. Bailey, Cypress, TX (US);

Arthur T. Jones, Jr., Houston, TX (US);

Inventors:

Edward J. Bailey, Cypress, TX (US);

Arthur T. Jones, Jr., Houston, TX (US);

Assignee:

Rosemount Analytical Inc., Houston, TX (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 9/26 (2006.01); H01H 13/72 (2006.01); H01H 13/76 (2006.01); H01H 13/06 (2006.01); H01H 13/86 (2006.01);
U.S. Cl.
CPC ...
H01H 13/06 (2013.01); H01H 13/86 (2013.01); H01H 2221/024 (2013.01); H01H 2223/002 (2013.01); H01H 2223/008 (2013.01); H01H 2239/036 (2013.01); H01H 2239/072 (2013.01);
Abstract

A process analytic device includes a metallic enclosure having electronics disposed therein. The enclosure has an enclosure wall with a reference surface. A plurality of operating rods is provided. Each operating rod is configured to pass through an aperture in the enclosure wall and to cooperate with the enclosure wall to provide a flame quenching pathway. A plurality of electrical switches is provided where each electrical switch is aligned with a respective operating rod, and is mounted a controlled distance from the reference surface. Each operating rod transfers movement to a respective electrical switch through the flame quenching pathway.


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