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. 02, 1982
Filed:
Feb. 01, 1980
Yukio Ohtake, Tokyo, JP;
Masahiro Nakamura, Tokyo, JP;
Ohtake Works Company, Ltd., Tokyo, JP;
Abstract
Apparatus for automatically measuring changes in amount of gas comprises a pressure sensor being attached to a closed vessel having a main chamber in which is contained a liquid enzyme or the like and adapted to convert a change in pressure within said vessel into an electric signal and output a measured pressure value signal; a photoelectric sensor adapted to convert an optical change of the liquid enzyme or the like within said closed vessel into an electric signal and output an optical measured value signal; an electrode adapted to come into contact with the liquid enzyme or the like within the vessel to convert a change in conductivity into an electric signal and output a measured conductivity signal; and an arithmetic circuit adapted to input respectively said measured pressure value signal, the measured pressure value signal and said optical measured value signal, and the measured pressure value signal and said measured conductivity signal simultaneously, effect calculations simultaneously in parallel according to a predetermined numerical expression stored in advance and output respective calculation data signals.