05420408 is referenced by 29 patents and cites 1 patents.

An automatic chemical analyzer utilizes reagents supplied in reagent bottles. The reagent bottles are labeled on their bottom surfaces with an identification label bearing a machine-readable identification code. The automatic chemical analyzer includes a reagent tray having a plurality of tray apertures therein which receive coded reagent bottles and which expose the bottom surface of each bottle for optical viewing of the machine-readable identification code. The analyzer further includes optical scanner means positioned below the reagent tray for reading the machine-readable identification code on the bottom surfaces of reagent bottles within the tray apertures. The tray apertures are selectively located over the optical scanner means so that the analyzer can identify the reagent bottle and the contents thereof.

The identification label has a spaced pair of position reference dots defining and orienting a label area. A plurality of bit fields surround the position reference dots, their positions being defined by the position reference dots. Each bit field maps to a single bit of a multi-bit binary bottle identification code. Bit dots are printed in selected bit fields to define the binary value of each bit of the multi-bit binary identification code.

Title
Reagent bottle identification method
Application Number
916221
Publication Number
5420408
Application Date
May 12, 1994
Publication Date
May 30, 1995
Inventor
Gary Richardson
Mica
WA, US
Kelsey Loughlin
Spokane
WA, US
James Clark
Spokane
WA, US
Charles Butts
Spokane
WA, US
Leon Schmidt
Spokane
WA, US
Norman Kelln
Spokane
WA, US
Bruce Weyrauch
Newman Lake
WA, US
Agent
Wells St John Roberts Gregory & Matkin
Assignee
Schiapparelli Biosystems
NJ, US
IPC
G06K 7/10
View Original Source