Weighing scales – With casing closure or shield
Reexamination Certificate
2008-03-24
2010-11-09
Gibson, Randy W (Department: 2841)
Weighing scales
With casing closure or shield
C073S296000, C422S105000, C422S105000, C422S105000, C436S180000
Reexamination Certificate
active
07829800
ABSTRACT:
A device for the gravimetric volume determination of liquid volumes. The device comprises a housing (11) having the shape and dimensions of a standard rack used in a clinical diagnostic analyzer system for holding sample or reagent containers, and the following components contained in housing (11): a load cell (12) for gravimetric volume determination, a weighing container (13) for receiving a liquid to be weighed with said load cell (12), a windbreak (14) which shields said weighing container (13) from air flow, an evaporation trap (15) which prevents evaporation of liquid loaded into said weighing container (13), a temperature sensor (21), an air-pressure sensor (31) and a humidity sensor (41) for sensing temperature, air pressure and humidity respectively at predetermined points within said housing (11), and an electronic processing unit for processing electrical output signals delivered by said load cell (12) and by said sensors (21, 31, 41).
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EP 07006664, PCT Search Report, Sep. 12, 2007.
Burmester Joerg
Kull Philipp
Ott Daniel
Thiel Markus
Doyle Charles M.
Gibson Randy W
Kay Olga
Nersesian Rhea
Roche Molecular Systems Inc.
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