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Title: Method and apparatus for dispensing small quantities of mercury from evacuated and sealed glass capsules

Abstract

A technique for opening an evacuated and sealed glass capsule containing a material that is to be dispensed which has a relatively high vapor pressure such as mercury. The capsule is typically disposed in a discharge tube envelope. The technique involves the use of a first light source imaged along the capsule and a second light source imaged across the capsule substantially transversely to the imaging of the first light source. Means are provided for constraining a segment of the capsule along its length with the constraining means being positioned to correspond with the imaging of the second light source. These light sources are preferably incandescent projection lamps. The constraining means is preferably a multiple looped wire support.

Inventors:
 [1];  [2];  [3]
  1. (Framingham, MA)
  2. (Rockport, MA)
  3. (Hamilton, MA)
Issue Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
OSTI Identifier:
865549
Patent Number(s):
4534742
Assignee:
GTE Products Corporation (Stamford, CT) LBNL
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; dispensing; quantities; mercury; evacuated; sealed; glass; capsules; technique; capsule; containing; material; dispensed; relatively; vapor; pressure; typically; disposed; discharge; tube; envelope; involves; light; source; imaged; substantially; transversely; imaging; means; provided; constraining; segment; length; positioned; correspond; sources; preferably; incandescent; projection; lamps; multiple; looped; wire; support; light source; vapor pressure; light sources; technique involves; discharge tube; sealed glass; capsule containing; substantially transversely; /445/

Citation Formats

Grossman, Mark W., George, William A., and Pai, Robert Y. Method and apparatus for dispensing small quantities of mercury from evacuated and sealed glass capsules. United States: N. p., 1985. Web.
Grossman, Mark W., George, William A., & Pai, Robert Y. Method and apparatus for dispensing small quantities of mercury from evacuated and sealed glass capsules. United States.
Grossman, Mark W., George, William A., and Pai, Robert Y. Tue . "Method and apparatus for dispensing small quantities of mercury from evacuated and sealed glass capsules". United States. https://www.osti.gov/servlets/purl/865549.
@article{osti_865549,
title = {Method and apparatus for dispensing small quantities of mercury from evacuated and sealed glass capsules},
author = {Grossman, Mark W. and George, William A. and Pai, Robert Y.},
abstractNote = {A technique for opening an evacuated and sealed glass capsule containing a material that is to be dispensed which has a relatively high vapor pressure such as mercury. The capsule is typically disposed in a discharge tube envelope. The technique involves the use of a first light source imaged along the capsule and a second light source imaged across the capsule substantially transversely to the imaging of the first light source. Means are provided for constraining a segment of the capsule along its length with the constraining means being positioned to correspond with the imaging of the second light source. These light sources are preferably incandescent projection lamps. The constraining means is preferably a multiple looped wire support.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

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