Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Reexamination Certificate
1996-10-02
2001-01-09
Celsa, Bennett (Department: 1627)
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
C422S091000, C422S913000, C422S915000, C206S443000
Reexamination Certificate
active
06171554
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to laboratory technology and specifically to a new and improved rack of test tubes suitable for use in diagnostic methods.
2. Background of the Invention
It is known to provide multi-well racks for test tubes. Conventionally, the wells are located at the intersections of mutually perpendicular columns and rows aligned with alphanumeric markings along perpendicular edges of the rack. Test tubes are supported in the wells. Often during use, the tubes are not labeled. Thus, if more than one tube is removed from the rack at one time, errors may be made when returning the tubes to the proper wells. At other times the tubes are manually marked with the appropriate alphanumerical designation to identify their appropriate positions in the array of wells. In addition to being time consuming and laborious, this practice can also lead to errors caused by laboratory technicians either mislabeling the tubes or again, returning properly labeled tubes to the wrong wells.
SUMMARY OF THE INVENTION
The present invention avoids these problems by simultaneously marking all of the test tubes in a given rack with the alphanumeric indicia corresponding to the alphanumeric locations of the wells in which the tubes are supported.
Advantageously, the wells are open bottomed to expose the lower tube ends, and the alphanumeric markings are applied to the thus exposed tube ends.
Preferably, the rack is provided with a detachable lid which serves to retain the tubes within their respective wells during application of the alphanumeric markings to their exposed lower ends.
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Kalmakis George P.
Keene R. Laurence
Celsa Bennett
Matrix Technologies Corporation
Samuels Gauthier & Stevens
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