Method of forming capsules containing a precise amount of material

Patent · Tue Dec 31 23:00:00 EST 1985

OSTI ID:865891

Grossman, Mark W ^[1]; George, William A ^[2]; Maya, Jakob ^[3]

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1. Framingham, MA
2. Rockport, MA
3. Brookline, MA

A method of forming a sealed capsule containing a submilligram quantity of mercury or the like, the capsule being constructed from a hollow glass tube, by placing a globule or droplet of the mercury in the tube. The tube is then evacuated and sealed and is subsequently heated so as to vaporize the mercury and fill the tube therewith. The tube is then separated into separate sealed capsules by heating spaced locations along the tube with a coiled heating wire means to cause collapse spaced locations therealong and thus enable separation of the tube into said capsules.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
• DOE Contract Number: AC03-76SF00098
• Assignee: GTE Products Corporation (Stamford, CT)
• Patent Number(s): US 4596681
• OSTI ID: 865891
• Country of Publication: United States
• Language: English

Related Subjects

/264/65/313/445/
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