Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Using sonic – supersonic – or ultrasonic energy
Patent
1993-05-28
1995-09-19
Redding, David A.
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Using sonic, supersonic, or ultrasonic energy
264321, 264325, 264327, 422 56, 422 58, 422 86, 436164, 436810, 435 4, 435805, 427 211, 427 213, G01N 118
Patent
active
054513502
ABSTRACT:
An analytical device determines the analytes in a liquid sample. This device includes a layer of flat material which has a sample application area and a detection area thereupon. The detection area includes a reagent for determining the analyte, and the absorbent sample application area and the absorbent detection area are disposed within a liquid impermeable boundary. The layer of flat material also includes an absorbent connector which is disposed such that the sample application area and the detection area are connected by the absorbent connector. The liquid impermeable boundary and the absorbent connector prevents liquid from being transported between the sample application area and the detection area, except through the absorbent connector.
REFERENCES:
patent: 4235601 (1980-11-01), Deutsch et al.
patent: 4678757 (1987-07-01), Rapkin et al.
patent: 4837373 (1989-06-01), Gunkel et al.
Harttig Herbert
Lerch Rolf
Macho Heinz
Zimmer Volker
Boehringer Mannheim GmbH
Redding David A.
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