Vacuum drying apparatus

• US 5,377,425 A
• Filed: 01/07/1993
• Issued: 01/03/1995
• Est. Priority Date: 05/24/1991
• Status: Expired due to Fees

• Current Assignee: Nikku Industry Co., Ltd., Senju Metal Industry Company Limited
• Original Assignee: Nikku Industry Co., Ltd., Senju Metal Industry Company Limited
• Inventors: Tsuruta, Kaichi, Kawakami, Osamu
• Primary Examiner(s): Gromada, Denise
• Application Number:
  US07/934,655
• Time in Patent Office: 726 Days
• Field of Search: 34/5, 34/15, 34/16, 34/92, 34/287, 34/289, 34/408, 34/412, 34/406, 34/403, 34/290, 34/418, 34/68
• US Class Current: 34/92
• CPC Class Codes: F26B 5/04 by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum F26B11/049 and F26B17/128 take precedence
• CPC Class Codes: H05K 3/227 Drying of printed circuits

Abstract

A vacuum drying apparatus characterized by a means for pre-heating a product by hot air, provided to a vacuum container having a heater housed therein.

Claims

1. A vacuum drying apparatus characterized by a means for pre-heating a product by hot air, incorporated in a vacuum container having a heater housed therein and in that the vacuum container having a heater housed therein contains one of plural serially arranged conveyers and that said means includes a hot air blow-out device provided to a conveyer located upstream of said one of said plural serially arranged conveyors provided with the vacuum container.

2. A vacuum drying apparatus according to claim 1, further characterized in that a plurality of vacuum containers is provided in a parallel arrangement and in a manner such that the vacuum containers can be switched from one to another.