Optics: measuring and testing – Sample – specimen – or standard holder or support – Fluid containers
Patent
1980-05-29
1982-06-01
McGraw, Vincent P.
Optics: measuring and testing
Sample, specimen, or standard holder or support
Fluid containers
G01N 2103
Patent
active
043324711
ABSTRACT:
A cuvette for holding a liquid to be examined optically has front, back, and side walls defining a rectangular cross section and a Y-shaped structure at the bottom thereof for holding the liquid. The Y-shaped structure extends between transparent front and back walls with an upper funnel mouth extending to the side walls, and a liquid holding portion formed of inner walls spaced between the side walls, and extending down to a rounded, tub-shaped bottom. The front walls are transparent and serve also to form the front and back of the liquid holding portion. The bottom preferably has a frustroconic surface to minimize the amount of liquid required for examination and to facilitate mixing of liquids added to the cuvette. The side walls extend below the tub-shaped bottom, and are joined to the front and back wall midway up the liquid holding portion by means of a rib, so that light is not scattered by the side walls and optical inhomogeneities are prevented.
REFERENCES:
patent: 4021124 (1977-05-01), Sarstedt
patent: 4067653 (1978-01-01), Fletcher et al.
patent: 4251159 (1981-02-01), White
Hoechst Aktiengesellschaft
McGraw Vincent P.
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