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:
Sep. 24, 1991

Filed:

Jan. 16, 1990
Applicant:
Inventors:

Ian Ripley, Cleveland, GB;

Anthony H Needham, Cleveland, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16L / ;
U.S. Cl.
CPC ...
137 15 ; 137315 ; 138 943 ; 220465 ;
Abstract

A tank accessing procedure is disclosed which allows for the replacement of a cover plate from a tank manway with an adapter having the capability of permitting access to the interior of the enclosure, without any appreciable spillage of the contents of the tank, even if the level of such tank contents is above the height of the manway. In particular, the method comprises first inserting a blanking plate between the cover plate and the manway flange, which blanking plate is then secured to the manway flange. The cover plate is then removed leaving the blanking plate as the sole means of retaining the tank contents in place. The adapter is then secured to the manway flange and the blanking plate is removed thereby completing the accessing operation.


Find Patent Forward Citations

Loading…