Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1989-02-22
1991-11-26
Lacey, David L.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
422 63, 422102, 422104, 118410, B01L 300
Patent
active
050680919
ABSTRACT:
A device for dyeing tissues of living bodies for immune response observation comprises dyeing block on which are formed a plurality of adjoining base portion each having a flat upper surface. On one side of the base portion is formed a ridge, and on the other side of the base portion is formed a supporting surface which is slightly higher than the ridge. A slide glass having a tissue attached to one surface is placed above each of the base portion with the surface thereof facing the upper surface of the base portion, so as to bridge the ridge and the supporting surface in such a manner that a thin wedge-shaped gap is defined between the upper surface of the base and the undersurface of the slide glass. Dyeing liquid is dripped from above onto the upper surface of the base portion which is not covered by the slide glass. The dripped dyeing liquid spreads into the wedge-shaped gap by capillary action, whereby the tissue on the undersurface of the slide glass is dipped in the liquid and dyed. For cleaning the base portion and the slide glass after the dyeing operation, cleaning liquid is supplied on the base portion through a port formed therein. The waste liquid is exhausted through an exhaust port formed in the upper surface and an exhaust pipe connected to the exhaust port. Waste liquid channels are provided adjacent to the base portion.
REFERENCES:
patent: 3667896 (1972-06-01), McCormick
patent: 4181501 (1980-01-01), Keese et al.
patent: 4451433 (1984-05-01), Yamashita et al.
patent: 4775003 (1988-10-01), Koh
Kabushiki Kaisha Tiyoda Seisakusho
Lacey David L.
Sakura Finetechnical Co. Ltd.
Singla Abanti B.
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