Disposable microtiter stick

Details Disposable microtiter stick Disposable microtiter stick

1989-11-15

1990-09-11

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422 58, 422 73, 422 99, 436165, 436180, 436809, 356244, 356246, 435301, 435808, G01N 110, B01L 300

Patent

active

049561502

ABSTRACT:
A microtiter stick for use in performing immunochemical tests has a solid plastic body and a row of shallow wells (26). Each well is in the form of a truncated hemisphere, the bottom of which is an optically clear, circular, transparent, concave lens surface (26'). The remainder of the truncated hemisphere is stippled to render it translucent thereby to diffuse light and to increase the effective contact surface area of the well. A wall (31) surrounds the upper surface to create a reservoir so that all the wells (26) may be filled at one time. Lens surfaces (36) are formed in the bottom of the stick in optical alignment with the lens surface (26') in each well to create a planar-concave, clear, transparent lens at the bottom of each well.

REFERENCES:
patent: 2041290 (1936-05-01), Jackson
patent: 2363773 (1944-11-01), Cargille
patent: 3649464 (1972-03-01), Freeman
patent: 3656833 (1972-04-01), Wallace
patent: 3692491 (1972-09-01), Trentelman
patent: 4154795 (1979-05-01), Thorne
patent: 4431307 (1984-02-01), Suovaniemi
patent: 4495289 (1985-01-01), Lyman et al.
patent: 4498780 (1985-02-01), Banno et al.

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