EP 3640573 B1 20240522 - CONTROLLED NUCLEATION DURING FREEZING STEP OF FREEZE DRYING CYCLE USING PRESSURE DIFFERENTIAL ICE CRYSTALS DISTRIBUTION FROM CONDENSED FROST
Title (en)
CONTROLLED NUCLEATION DURING FREEZING STEP OF FREEZE DRYING CYCLE USING PRESSURE DIFFERENTIAL ICE CRYSTALS DISTRIBUTION FROM CONDENSED FROST
Title (de)
KONTROLLIERTE NUKLEIERUNG WÄHREND DES GEFRIERSCHRITTES EINES GEFRIERTROCKNUNGSZYKLUS MITTELS DIFFERENZIELLER EISKRISTALLVERTEILUNG VON KONDENSIERTEM FROST
Title (fr)
NUCLÉATION CONTRÔLÉE PENDANT L'ÉTAPE DE CONGÉLATION D'UN CYCLE DE LYOPHILISATION EN UTILISANT LA DISTRIBUTION DES CRISTAUX DE GLACE À DIFFÉRENTIEL DE PRESSION DU GIVRE CONDENSÉ
Publication
Application
Priority
- US 201414205802 A 20140312
- EP 14885084 A 20140918
- US 2014056192 W 20140918
Abstract (en)
[origin: WO2015138005A1] A method of controlling and enhancing the nucleation of product in a freeze dryer, wherein the product is maintained at a predetermined temperature and pressure in a chamber of the freeze dryer, and a predetermined volume of condensed frost is created on an inner surface of a condenser chamber separate from the product chamber and connected thereto by a vapor port. The opening of the vapor port into the product chamber when the condenser chamber has a pressure that is greater than that of the product chamber creates gas turbulence that breaks down the condensed frost into ice crystals that rapidly enter the product chamber for even distribution therein to create uniform and rapid nucleation of the product in different areas of the product chamber.
IPC 8 full level
F26B 5/06 (2006.01); F26B 21/00 (2006.01); F26B 25/00 (2006.01)
CPC (source: EP)
F26B 5/06 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015138005 A1 20150917; CN 106255860 A 20161221; CN 106255860 B 20190618; CN 110108097 A 20190809; EP 3117165 A1 20170118; EP 3117165 A4 20171122; EP 3117165 B1 20200325; EP 3640573 A1 20200422; EP 3640573 B1 20240522; ES 2799600 T3 20201218; JP 2017508126 A 20170323; JP 6389270 B2 20180912
DOCDB simple family (application)
US 2014056192 W 20140918; CN 201480076298 A 20140918; CN 201910394343 A 20140918; EP 14885084 A 20140918; EP 19214972 A 20140918; ES 14885084 T 20140918; JP 2016557074 A 20140918