EP 3232142 A1 20171018 - APPARATUS AND METHOD FOR EXHAUSTING CRYOGEN FROM A FREEZER
Title (en)
APPARATUS AND METHOD FOR EXHAUSTING CRYOGEN FROM A FREEZER
Title (de)
VORRICHTUNG UND VERFAHREN ZUM ABLASSEN EINES KÄLTEMITTELS AUS EINEM GEFRIERGERÄT
Title (fr)
APPAREIL ET PROCÉDÉ POUR ÉVACUER UN CRYOGÈNE PROVENANT D'UN CONGÉLATEUR
Publication
Application
Priority
US 201615096524 A 20160412
Abstract (en)
In order to overcome the limitations and problems that earlier apparatus and methods have experienced, a freezer (10) for a product (18), in particular for a food product, is proposed, said freezer (10) comprising: - a housing having an internal space (14) with a processing atmosphere for reducing a temperature of the product (18); and - a pressure balance apparatus (12) in communication with the processing atmosphere to restrict atmosphere external to the freezer (10) from reaching the internal space (14), the pressure balance apparatus (12) comprising at least one sensor (44) exposed to the processing atmosphere for generating a first signal (45) indicating an amount of oxygen (O 2 ) sensed at the internal space (14), and a blower (46) disposed to direct a pressurized flow of the processing atmosphere to the internal space (14) responsive to the first signal (45). A related method is also provided.
IPC 8 full level
F25D 3/11 (2006.01); F25D 29/00 (2006.01)
CPC (source: EP US)
F25D 3/10 (2013.01 - EP US); F25D 3/11 (2013.01 - EP US); F25D 17/047 (2013.01 - US); F25D 29/001 (2013.01 - EP US); F25D 2317/04 (2013.01 - EP US); F25D 2700/00 (2013.01 - US)
Citation (search report)
- [YA] US 4955206 A 19900911 - LANG GARY D [US], et al
- [YA] WO 2013034827 A1 20130314 - AIR LIQUIDE [FR], et al
- [A] US 5966946 A 19991019 - GIRARD JOHN MARTIN [US], et al
- [A] US 4947654 A 19900814 - SINK BRIAN EVAN [US], et al
- [A] US 3255608 A 19660614 - MACINTOSH HAMISH K
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3232142 A1 20171018; EP 3232142 B1 20220914; US 2017292764 A1 20171012; WO 2017180510 A1 20171019
DOCDB simple family (application)
EP 16180252 A 20160719; US 201615096524 A 20160412; US 2017026788 W 20170410