Sampling tube and method of making same

Details Sampling tube and method of making same Sampling tube and method of making same

2006-08-01

2006-08-01

Colaianni, Michael P. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

C264S295000, C264S328100

Reexamination Certificate

active

07083754

ABSTRACT:
A sample tube for injection molded with two cores in one base with an intermediate bottom forming a well for receiving the biological material. In a second stage, the bottom edge of the cylindrical wall is heated and turned inwardly to form preferably a rounded bottom of complementary contour to a stamp applied thereagainst in a thermal reforming operation.

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patent: 6179153 (2001-01-01), Huang

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