Thermoelectric cold trap

Details Thermoelectric cold trap Thermoelectric cold trap

1998-12-18

2000-06-20

Bennett, Henry

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

F25B 2102

Patent

active

060763574

ABSTRACT:
A compact, portable, thermoelectric cold trap for capturing certain gaseous species for analysis in gas chromatographs is disclosed. The U-shaped heat exchanger and T-shaped cold block for holding the adsorbent tube and heater allow the unit to operate over a temperature range from -45.degree. to 300.degree. C. The thermoelectric cold trap is portable and may be retrofitted to new or existing gas chromatographs. The adsorbent tube and heater are also replaceable. A method of assembling the thermoelectric cold trap and a method of operating the thermoelectric cold trap are also disclosed.

REFERENCES:
patent: 2838899 (1958-06-01), Lindenbald
patent: 3719052 (1973-03-01), White
patent: 4231256 (1980-11-01), Chapman et al.
patent: 4494380 (1985-01-01), Cross
patent: 4730458 (1988-03-01), Alger
patent: 5465581 (1995-11-01), Haertl et al.

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