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2 131 102

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IPC

(21) (22)

Application

98101022/06, 1998-01-22

(22)

Actual filing date

1998-01-22

(45)

Published

1999-05-27

(72)

Inventor

Kretov I.T.Antipov S.T.Mosolov G.I.Sidorov M.N.

(73)

Holder

Voronezhskaja Gosudarstvennaja Tekhnologicheskaja Akademija

MULTI-SECTION VACUUM-FREEZE DRIER WITH STEPPED REDUCTION OF PRESSURE Russian patent published in 1999 - IPC

Abstract RU 2131102 C1

FIELD: pharmaceutic, microbiological and food industries. SUBSTANCE: vacuum-freeze drier has vacuum chamber, vacuum pump, defreezer, and heaters. Vacuum chamber consists of sections parallel-connected by collector and successively connected sections which represent shell with transverse partition. The latter is made of heat-conducting material. It divides section into two cavities coupled to each other through branch pipe with shut-off valve. Upper cavity of every section is provided additionally with louver-shaped partition and branch pipe with shut-off valve mounted for coupling to defreezer and vacuum pump. EFFECT: reduced power consumption. 1 cl, 1 dwg

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RU 2 131 102 C1

Authors

Kretov I.T.

Antipov S.T.

Mosolov G.I.

Sidorov M.N.

Dates

1999-05-27—Published

1998-01-22—Filed

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