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:
Apr. 22, 2003
Filed:
Dec. 08, 2000
Applicant:
Inventors:
Mark D. Shaw, Ponte Vedra Beach, FL (US);
J. Tad Heyman, Atlantic Beach, FL (US);
Laurence M. Bierce, Macclenny, FL (US);
Assignee:
UltraTech International, Inc., Jacksonville, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 2/400 ;
U.S. Cl.
CPC ...
F16K 2/400 ;
Abstract
A filter vent fitting for a drum which allows for the passage of hydrogen gas but precludes the passage of radioactive particulates, the fitting having evacuation/pressurization conduits which allow the drum to be evacuated or pressurized, and cryogenic/sapling conduits which allow the temperature of the drum to be reduced and samples drawn from the interior which are not filtered. Preferably a cap member is provided with a pressure balancing bore which is active during the evacuation and pressurization steps.