The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 1992
Filed:
Oct. 24, 1991
Applicant:
Inventors:
Peter E Rising, Bohemia, NY (US);
Peter G Chaconas, Rockville, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ; B65B / ; B65B / ; B65B / ;
U.S. Cl.
CPC ...
53433 ; 53440 ; 53467 ; 53474 ; 53477 ;
Abstract
A sealed indicator vial to detect the presence of a predetermined contaminant in water containing a mixture of reagents reactive in the presence of water, the mixture being sufficiently dehydrated to prevent the reaction of said reagents while sealed in said vial. The vial contains an inert atmosphere at less than atmospheric pressure. Also described is the method of producing such an indicator vial in which a tube containing the dehydrated reagents is heated and stretched to form a narrow waist while under vacuum.