Quartz glass tube liquid heating apparatus with concentric flow paths
Patent 5271086 Issued on December 14, 1993. Estimated Expiration Date: 
January 24, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 24, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2446367 Electrically heated thermal microbial drain barrier Apparatus for raising a liquid to a given temperature Continuous flow electric water heater Bio-medical flow sensor Heated transfer line for capillary tubing Patent #: 4728776 InventorsAssigneeApplicationNo. 825559 filed on 01/24/1992US Classes:392/483, Heating element producing radiation137/341, With electric heating element165/154, NON-COMMUNICATING COAXIAL ENCLOSURES392/480, Pipe or tube forms flow path392/482Plural pipes or tubes form flow pathExaminersPrimary: Reynolds, Bruce A.Assistant: Jeffery, John A. Attorney, Agent or FirmForeign Patent References
International ClassF24H 009/18Foreign Application Priority Data1991-01-24 JPAbstractA 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.Field of SearchHeating element producing radiationPlural pipes or tubes form flow path Pipe or tube forms flow path Using direct contact with electrical or electromagnetic radiation Controls heat transfer Heat treating vessel with heating means Including multiple stages Circulating fluid in heat exchange relationship With electric heating element Liquid fluent heat exchange material Including means to move heat exchange material NON-COMMUNICATING COAXIAL ENCLOSURES With communicating coaxial enclosure Helical conduit means | |
