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:
Oct. 12, 1993
Filed:
Dec. 05, 1991
Applicant:
Inventor:
Donald L Zink, Billings, MT (US);
Assignee:
Montana Sulphur & Chemical Co., Billings, MT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137347 ; 137585 ; 137587 ; 105358 ; 105360 ;
Abstract
A tube well extends through a fluid containment compartment and is secured at both ends thereof to the compartment shell. Both ends of the well communicate with respective shell openings. Compartment fittings and/or equipment are positioned in the tube and are accessible through at least one of the openings. Both openings can be sealed and the well pressurized, to prevent pressurized fluid in the compartment from leaking through the equipment and into the tube well.