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:
Feb. 14, 1978
Filed:
Feb. 25, 1976
Applicant:
Inventors:
Rame Bull, Mt. Prospect, IL (US);
Byron A Denenberg, Northfield, IL (US);
Djorde R Popovic, Chicago, IL (US);
Assignee:
MDA Scientific, Inc., Park Ridge, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; G01N / ;
U.S. Cl.
CPC ...
2325 / ; 2325 / ; 2325 / ; 346 / ;
Abstract
A reader recorder which will plot a concentration versus time graph based on stain intensity of a gas sensitive tape. Simultaneously, the device will integrate the area under the curve to obtain the total dosage for the period of time covered by the graph. By means of a common drive system for the recorder and the tape drive a meaningful relationship between displacement on the tape and position on the graph is obtained yielding information on the exact time of occurrence of events of interest.