Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Sorting special items or sorting by methods and apparatus...
Patent
1976-09-24
1978-03-28
Lutter, Frank W.
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Sorting special items or sorting by methods and apparatus...
209 17, B03B 700
Patent
active
040813568
ABSTRACT:
A device and method for the concentration of parasite eggs and larvae consisting of separable upper and lower chambers connected by a mid-piece which incorporates a filter of stainless steel gauze. The sample is emulsified in the upper chamber and is filtered into the lower chamber. Ether is added through the upper chamber and the mid-piece and upper chamber are removed. The lower chamber is shaken and centrifuged, the mid-plug of debris is removed, and the tube is drained and swabbed clean leaving a small sediment containing the parasite eggs and larvae. The sediment is removed by extraction with Lugol's iodine or saline to dilute the sediment.
REFERENCES:
patent: 1775109 (1930-09-01), Picker
patent: 3087707 (1963-04-01), Moonan
patent: 3300051 (1967-01-01), Mitchell
patent: 3819045 (1974-06-01), Breenwald
patent: 3942717 (1976-03-01), Robison
Bray, W. E., Bray's Clinical Laboratory Method, 6th Ed., CV Mosley Co., 1962, pp. 336-337.
Thompson, R. G. "Technical Methods", J. Clinical Pathology vol. 25, No. 6, June 1972, pp. 546-547.
Ferris Thomas G.
Hill Ralph J.
Latker Norman J.
Lutter Frank W.
Roberts, Jr. John S.
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