Measuring and testing – Instrument mechanism or transmission – Rate of change
Patent
1990-04-25
1991-10-22
Raevis, Robert
Measuring and testing
Instrument mechanism or transmission
Rate of change
7386321, G01N 100
Patent
active
050584448
ABSTRACT:
A closed loop system is provided for by-passing, from a duct, a small fluid-entrained stream of particulates or solids; separating the stream into a particulate fraction and a fluid stream that essentially is free of the particulates; returning such fluid stream to the duct downstream from the by-pass; analyzing the particulate fraction; and dispersing particulates, after analysis, into the fluid stream being returned to the duct. To analyze particulates such as cotton lint, the separated lint is formed into a batt, the batt is passed in contact with a wall having an analyzer operatively associated therewith; a segment of the batt is compressed against the wall adjacent the analyzer by placing a weighted object against the segment; analysis is carried out on the compressed segment after which the object is lifted off the segment to permit the segment to be displaced with another segment of the batt; and the compression, analyzing, and lifting steps are repeated on the second segment.
REFERENCES:
patent: 2353828 (1944-07-01), Hyde
patent: 2931076 (1960-04-01), Clark
patent: 3138029 (1964-06-01), Rich
patent: 4485684 (1984-12-01), Weber et al.
patent: 4777702 (1988-10-01), Jung et al.
Anthony William S.
McCaskill Oliver L.
Fado John D.
Raevis Robert
Silverstein M. Howard
The United States of America as represented by the Secretary of
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