Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1995-07-21
1998-06-23
Ludlow, Jan
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
4352875, 4352881, 436 62, 436148, G01N 700
Patent
active
057701539
ABSTRACT:
An analytical device for determining the gas consumption of matter, specifically the oxygen demand of organic matter includes a container for holding the sample which is to be analyzed and a cop to seal the container gas-tight. Electrical and/or electronic measurement components are integrated in the cap. These components include an electrical pressure sensor which communicates with the interior of the container through a pressure connection, electronic measuring circuitry to which the pressure sensor output signal is sent in order to calculate a value which is proportional to gas consumption, keys for operating the electronic measuring circuitry, and a display for displaying measured, calculated, or stored values. The cap also contains a power source for the electrical/electronic components.
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patent: 4829809 (1989-05-01), Tantram et al.
patent: 5232839 (1993-08-01), Eden et al.
patent: 5281395 (1994-01-01), Markart et al.
Atkinson et al. Biochemical Engineering and Biotechnology Handbook, The Nature Press (1983) pp. 114-153.
Ludlow Jan
WTW Wissenschaftlich-Technische Werkstatten GmbH
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