Closed cell for use in spectrophotometers

Details Closed cell for use in spectrophotometers Closed cell for use in spectrophotometers

2011-08-23

2011-08-23

Chowdhury, Tarifur (Department: 2886)

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

C356S440000, C250S373000

Reexamination Certificate

active

08004672

ABSTRACT:
A closed cell for use in spectrophotometers is adapted to receive a liquid to be subjected to analysis and an air space or bubble to absorb pressure differentials, wherein the cell includes means to retain the air space or bubble in a predetermined location in the cell.

REFERENCES:
patent: 3508837 (1970-04-01), Hrdina
patent: 3795451 (1974-03-01), Mailen
patent: 3867042 (1975-02-01), Mayer et al.
patent: 4565446 (1986-01-01), Chu
patent: 5475486 (1995-12-01), Paoli
patent: 5831727 (1998-11-01), Stream
patent: 2005/0168737 (2005-08-01), Bradshaw et al.
patent: 2006/0073609 (2006-04-01), Shimizu

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