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:
Jan. 16, 2024
Filed:
Oct. 28, 2019
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Seiji Kuwano, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
A cleaning method of a heat sterilization system includes: a step of causing a fluid formed of a cleaning liquid or a rinse liquid to flow through the heat sterilization system; a step of supplying hot water to a second-stage heating unit to heat the second-stage heating unit; and a step of measuring fluid temperatures of the fluid at the fluid inlet and the fluid outlet of the second-stage heating unit, and medium temperatures of the hot water at a medium inlet of the second-stage heating unit and a medium outlet of the second-stage heating unit. An overall heat transfer coefficient (U value) of a heating pipe of the second-stage heating unit is calculated based on the fluid temperatures at the fluid inlet and the fluid outlet of the second-stage heating unit and the medium temperatures at the medium inlet and the medium outlet of the second-stage heating unit.