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:
Dec. 14, 1993
Filed:
Jan. 24, 1992
Applicant:
Inventors:
Assignee:
Asahi Glass Company Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24H / ;
U.S. Cl.
CPC ...
392483 ; 392482 ; 392480 ; 137341 ; 165154 ;
Abstract
A liquid heating apparatus 1 has a flow path 2 surrounded by a quartz glass tube 5 inside a tubular ceramic heater 4 which radiates infrared rays and has a PTC characteristic, and a flow path 3 which is formed between two quartz glass tubes 6, 7 which are disposed outside the tubular ceramics tube 4 in a coaxial manner. The liquid heating apparatus can effectively heat purified water used for manufacturing electronics-related products without contamination of the purified water, and provides a compact size while having a high heat capacity.