Refrigeration – Automatic control – Of external fluid or means
Reexamination Certificate
2005-03-31
2010-10-12
Tapolcai, William E (Department: 3744)
Refrigeration
Automatic control
Of external fluid or means
C062S408000, C062S410000
Reexamination Certificate
active
07810340
ABSTRACT:
To provide a quick freezing apparatus and method making it possible to prevent a subtle reaction between an object-to-be-preserved and a gas inside its freezing store to prevent deformation and deterioration of the object-to-be-preserved as much as possible and freeze-preserve the object maintaining its freshness and quality at a high standard for a long term, and thereby applicable to a long-term preservation of a living tissue.A quick freezing apparatus includes a freezing store11including a door for bringing in or taking out an object-to-be-frozen3, a freezer17capable of lowering a temperature inside the freezing store to a temperature equal to or less than approximately −30 degrees C., a pressure regulator60capable of adjusting a gas pressure inside the freezing store, and a ventilator31for sending cold air at a wind velocity of 1 to 5 m/sec toward the object-to-be-frozen placed inside the freezing store. The pressure regulator60includes an actuation controller68for detecting the temperature inside the freezing store; if the detected inside temperature is equal to or more than a predetermined value, then actuating a depressurizer62to decrease the inside gas pressure to a pressure equal to or less than the atmospheric pressure; and when the inside temperature drops below the predetermined value, stopping the depressurizer62and actuating the pressurizer61to increase the inside gas pressure to a pressure equal to or more than the atmospheric pressure.
REFERENCES:
patent: 6250087 (2001-06-01), Owada
patent: 2004/0038642 (2004-02-01), Gatley
patent: 63-14071 (1988-01-01), None
patent: 64-5075 (1989-01-01), None
patent: 06-32377 (1994-02-01), None
patent: 06-032377 (1994-02-01), None
patent: 09-229527 (1997-09-01), None
patent: 9-2298527 (1997-09-01), None
patent: 2001-343176 (2001-12-01), None
patent: WO 01-24647 (2001-04-01), None
patent: WO 01/24647 (2001-04-01), None
Japanese Patent Office, Office action for application No. 2007-514338, mail date Jan. 20, 2009.
Owada Norio
Saito Shobu
Gunther John E.
Owada Norio
Sereboff Steven C.
SoCal IP Law Group LLP
Tapolcai William E
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