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Patent Searching and Data


Title:
LOW PRESSURE DRYER
Document Type and Number:
WIPO Patent Application WO1999015324
Kind Code:
B1
Abstract:
A low pressure dryer for granular or powdery material includes a plurality of hoppers (12) rotatable about a common vertical axis (24) serially among material filling and heating (100), vacuum drying (102) and material discharge positions (104); pneumatic piston-cylinder means (34, 36, 38) for rotating the hoppers about said axis among said filling and heating, vacuum drying and discharge positions; means for heating contents of a hopper at said filling and heating positions; means for sealing a hopper at said vacuum and drying positions; means for drawing vacuum within a hopper at said vacuum drying position and means for selectably permitting downward flow of dried granular or powdery material out of a hopper at said discharge position where said hoppers move collectively and unitarily with one another.

Inventors:
MAGUIRE STEPHEN B
Application Number:
PCT/US1998/019464
Publication Date:
May 06, 1999
Filing Date:
September 18, 1998
Export Citation:
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Assignee:
MAGUIRE PRODUCTS INC (US)
International Classes:
B29B13/06; F26B5/04; F26B9/06; F26B17/12; F26B25/00; F26B25/06; (IPC1-7): B29B13/06; F26B17/12
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