Measuring and testing – Sampler – sample handling – etc. – With constituent separation
Reexamination Certificate
2007-04-03
2007-04-03
Warden, Jill (Department: 1743)
Measuring and testing
Sampler, sample handling, etc.
With constituent separation
C073S001010, C073S001020, C073S023200, C073S863000, C422S050000, C422S083000, C422S105000, C422S105000, C422S105000, C422S105000, C422S105000, C436S043000, C436S174000, C436S177000, C436S181000
Reexamination Certificate
active
10115305
ABSTRACT:
A sampling system for detecting an analyte, comprising a diaphragm pump, a buffer chamber, a sensor head and intake port. The pump includes a chamber for receiving fluids via first and second ports. A buffer chamber is located at the second port for holding a quantity of air, and a sensor head is adapted to identify the presence of a desired analyte and produce a signal in response to the quantity identified. Preferably the diaphragm pump has a volume of gas per stroke capacity slightly larger than the volume of the sensor head such that the pump chamber has a greater volume than the buffer chamber and the buffer chamber has about the same volume as the sensor head. A sensor intake port intakes a sample potentially containing the analyte for contact with the sensor head upon operation of the diaphragm pump and out of the sensor head by jet-action caused by rapid movement of the diaphragm pump. A filter may be used for filtering air drawn through the pump chamber. The diaphragm pump may be either a single chamber pump or a multiple chamber diaphragm mesopump. In the purging mode, the system can also contain a pump for filling the system with clean air. When a mesopump is used, a single pumping channel can provide both AC and DC operation.
REFERENCES:
patent: 4478096 (1984-10-01), Heiland et al.
patent: 4920263 (1990-04-01), Fimian et al.
patent: 5836750 (1998-11-01), Cabuz
patent: 6085576 (2000-07-01), Sunshine et al.
patent: 6179586 (2001-01-01), Herb et al.
patent: 6418783 (2002-07-01), Sunshine et al.
patent: 6432721 (2002-08-01), Zook et al.
patent: 6658915 (2003-12-01), Sunshine et al.
patent: 6703241 (2004-03-01), Sunshine et al.
patent: 6889567 (2005-05-01), Cabuz
Cabuz Cleopatra
Zook J. David
Fredrick Kris T.
Sines Brian
Warden Jill
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