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:
Mar. 15, 1983
Filed:
Feb. 17, 1981
Reiji Takeda, Obihiro, JP;
Shozo Oikawa, Obihiro, JP;
Nippon Tensaiseito Kabushiki Kaisha, Tokyo, JP;
Abstract
A method and apparatus for determining the saturation temperature of a given substance dissolved in a solution under test, based on the principle that the change in the temperature of the solution causes a specific change in the amount of light being passed through the solution. The accuracy of the determination of saturation temperature is augmented by passing a preheated air through an empty space formed between the test cell and the air seal glass thereby precluding otherwise possible formation of dew-condensation on the air seal glass. This invention is characterized by forming a thin layer of fine crystals of the substance deposited fast on the bottom face of the test cell and pouring the solution onto the thin layer in the test cell.