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. 17, 2005
Filed:
Aug. 12, 2004
Applicants:
Marius Robert Junier, Houston, TX (US);
Thomas Ervin Malone, Katy, TX (US);
Inventors:
Marius Robert Junier, Houston, TX (US);
Thomas Ervin Malone, Katy, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B009/02 ; B08B009/032 ; B65G053/40 ; F16K001/38 ;
U.S. Cl.
CPC ...
Abstract
A shield for a plug valve is provided to prevent debris from hindering the movement of moving components of the plug valve. The shield prevents larger sized debris from accumulating at an opening in a wall in which the plug valve is mounted, the wall defining a confined space, such as the interior of a vessel, at least in part. The shield encloses but is spaced from the plug valve and a device is located within a space between the shield and the plug valve for directing a purging gas through the space to sweep away or purge smaller sized debris from the space.