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Class Information
Number: 392/484
Name: Electric resistance heating devices > Heating devices (class 219 subclass 200) > Continuous flow type fluid heater > Externally heated line connected section > Block forms flow path
Description: Subject matter wherein the flow path is formed in a solid mass.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8554064 Method and apparatus for generating vapor at high rates Oct. 8, 2013
8450666 High-efficiency water boiling device May. 28, 2013
8391695 Vehicle surfaces cleaning and de-icing system and method Mar. 5, 2013
8249437 Hybrid heater Aug. 21, 2012
8109328 Fluid temperature control device Feb. 7, 2012
8023808 Heat transfer device Sep. 20, 2011
7822326 Hybrid heater Oct. 26, 2010
7809253 Compact air drying system Oct. 5, 2010
7796868 Device and method for heating liquids, and base structure Sep. 14, 2010
7756404 Microstructured apparatus for heating a fluid Jul. 13, 2010
7580618 Water heating apparatus Aug. 25, 2009
7187856 Compact integrated forced air drying system Mar. 6, 2007
6952524 Fluid heater temperature balancing apparatus Oct. 4, 2005
6931205 Compact integrated forced air drying system Aug. 16, 2005
6912357 Fluid heater Jun. 28, 2005
6901217 Conduits integrated in circuit board and method of manufacture May. 31, 2005
6889005 Fluid heater with compressible cover freeze protection May. 3, 2005
6850699 Fluid heater temperature control apparatus and method Feb. 1, 2005
6839509 Fluid heater control apparatus and method with overtemperature protection Jan. 4, 2005
6816670 Fluid heat exchanging system and method Nov. 9, 2004
6804459 Method and apparatus for changing the temperature of a pressurized fluid Oct. 12, 2004
6788885 System for heating instillation or transfusion liquids Sep. 7, 2004
6782196 Fluid heater with freeze protection Aug. 24, 2004
6782195 Heat exchanger for high purity fluid handling systems Aug. 24, 2004
6605475 Apparatus and method for sample delivery Aug. 12, 2003
6557773 Heating system for heating the passenger compartment of a motor vehicle May. 6, 2003
6330395 Heating apparatus with safety sealing Dec. 11, 2001
5949958 Integral flash steam generator Sep. 7, 1999
5947722 Heat exchanger for particulate material Sep. 7, 1999
5934562 Hot melt adhesive dispensing system with laminated air heater Aug. 10, 1999
5724478 Liquid heater assembly Mar. 3, 1998
5647054 Smoke generator tube Jul. 8, 1997
5606639 Stationary ceramic glass electric baseboard heater Feb. 25, 1997
5570452 Fluid heater with main housing and surrounding auxiliary housing defining a pressure resistant compartment therebetween Oct. 29, 1996
5539857 Heater block for injection molding with removable heat conductive member in groove in heater block Jul. 23, 1996
5408577 Method and heater apparatus with protective fuse for medical applications Apr. 18, 1995
5407101 Thermal barrier for hot glue adhesive dispenser Apr. 18, 1995
5388180 Electrical steam generator with multiple passages of unequal cross-section Feb. 7, 1995
5377300 Heater for processing gases Dec. 27, 1994
5354965 Window cleaning fluid heating system having timer-controlled heater and differential input circuit Oct. 11, 1994
5280560 Electric coffee maker with water heater and electrical components easily automatically assembled into a base shell Jan. 18, 1994
5265318 Method for forming an in-line water heater having a spirally configured heat exchanger Nov. 30, 1993
5262619 Heating device with PTC resistors non-abrasively positioned in a metallic heat body for heating flowing media Nov. 16, 1993
5249624 Load-following vaporizer apparatus and method Oct. 5, 1993
4962296 Heat exchanger Oct. 9, 1990
4917077 Wall-mounted hot water boiler of the instant type Apr. 17, 1990
4871115 Smoke generating apparatus Oct. 3, 1989
4871089 Hot water dispenser Oct. 3, 1989
4866250 Device for preheating liquid, particularly liquid fuel Sep. 12, 1989
4857703 Steam generator Aug. 15, 1989

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