Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1981-11-02
1982-11-09
Kellogg, Arthur D.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
23230B, 23928, 55 37, 422 50, 422 99, G01N 3350, G01N 3396
Patent
active
043584241
ABSTRACT:
An improved instrument for preparing quality control solutions of liquid and gas for use in calibrating blood gas analyzers includes a gas inlet providing gas to a humidifier, a diffusion tube, flexible tubing connecting the gas from the humidifier to the diffusion tube and a temperature controlled environment for the diffusion tube. These standard components are arranged in a unique combination permitting the tubing connecting the outlet of the humidifier to the diffusion tube and the diffusion tube itself to both be replaced or individually replaced without disturbing the other components of the instrument. For this purpose, a metal heat block is used as the temperature controlled environment and is provided with an open top for receiving the diffusion tube. The humidifier and connecting tubing are exterior of the heat block so that the referred to replacement of the tubing can readily be carried out. In the preferred embodiment, three cavities are provided in the heat block for holding three individual diffusion tubes there being provided additional gas inlets and humidifiers so that additional quality control solutions can be simultaneously prepared.
REFERENCES:
patent: D264504 (1982-05-01), Weber et al.
patent: 3127254 (1964-03-01), Astrup et al.
patent: 3639829 (1972-02-01), Harnoncourt
patent: 3884640 (1975-05-01), Lock et al.
patent: 4251483 (1981-02-01), Carroll
patent: 4256461 (1981-03-01), Wallace et al.
patent: 4301117 (1981-11-01), Smernoff
Miller Thomas H.
von den Stemmen Alfons
Weber Russell S.
Kellogg Arthur D.
Pastoriza Ralph B.
R. S. Weber, Inc.
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