Sample dispenser

Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition

Reexamination Certificate

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Details

C422S091000, C422S105000, C222S583000, C101S494000, C436S180000, C073S864020

Reexamination Certificate

active

10048132

ABSTRACT:
The invention relates to a sample dispenser, for the application of liquid samples on to a sample absorbing area, with a sample dispenser body (1) having at its end a sample pick-up surface (5) bounded by a continuous edge (6), wherein the sample pick-up surface (5) is provided with a recess (7) such that, when the sample pick-up surface (5) is dipped into a sample reservoir, a droplet of liquid sample of predetermined size adheres to the sample pick-up surface (5) and by placing of the sample pick-up surface (5) on the sample absorbing area is completely dispensed, and wherein the recess (7) is in the form of a flat recess (7), that is to say, it has a depth which is less than its width.The sample dispenser according to the invention is of very simple design. In using it, the desired sample amount to be transferred is determined by the flat recess of the sample pick-up surface and can be reproduced very precisely.

REFERENCES:
patent: 4076503 (1978-02-01), Atwood et al.
patent: 4162896 (1979-07-01), Hosli
patent: 5756050 (1998-05-01), Ershow et al.
patent: 5882930 (1999-03-01), Baier
patent: 6101946 (2000-08-01), Martinsky
patent: 6116297 (2000-09-01), Feygin
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patent: 0635710 (1995-01-01), None
patent: WO 93/09872 (1993-05-01), None
patent: WO 98/55852 (1993-05-01), None
patent: WO 98/57747 (1998-12-01), None
patent: WO 00/25923 (2000-05-01), None
German Patent Office Search Report for Application No. 29914360.0, four pages, dated Dec. 28, 1999.
International Search Report for PCT/EP00/02412. dated Jul. 19, 2002, four pages.

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