Patent · US Expired

Cold cell or cold chamber

US6141982A · kind A · utility

3Cited by

4References

9Claims

0Family size

Assignee

Tollense Fahrzeug- un Anlagenbau GmbH Neubrandenburg · DE

Inventors

Jorn Schwarz · Hersbruck, DE
Torsten Schmidt · Chemnitz, DE
Andreas Gruner · Uhingen, DE
Gunnar Vierke · Neetzka, DE

Key dates

Filing date	Jul 13, 1999
Grant date	Nov 7, 2000
Priority date	—
Expiry date	Jul 13, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/14
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A cooling cell, cabinet or chamber having hollow walls which have fitting at top and bottom which can be alternatively used as inlet and outlet for the fresh cooling medium and the depleted cooling medium and collected gas. In a first phase the fresh cooling medium is forced into the bottom of the hollow wall surface to drive out collected gas above the lighter phase of the previously used medium whereupon the fillings are functionally switched so that the fresh medium is introduced from above and the heavy phase of the depleted medium is discharged from the bottom to complete displacement of the latent cooling medium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.