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:
Feb. 06, 1990

Filed:

Oct. 12, 1988
Applicant:
Inventors:

Zdenek Fencl, Prague, CS;

Frantisek Janda, Prague, CS;

Karel Kovarik, Prague, CS;

Jiri Sara, Revnice, CS;

Antonin Tatoun, Prague, CS;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F17C / ;
U.S. Cl.
CPC ...
62 482 ; 220 / ;
Abstract

In order to provide for the drawing off of residual vapors of a low boiling liquid from a pressure system into a storage vessel, the pressure between the system and the storage vessel is first equalized, whereafter the pressure in the storage vessel is reduced and the pressure in the pressure system increased, thereby enabling passage of the low boiling liquid, and its associated vapors in the liquid state, into the storage vessel. This process can be repeated in order to draw off all liquid with its vapors from the pressure system.


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