Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 236/20R
Name: Automatic temperature and humidity regulation > Closed fluid heaters
Description:










Sub-classes under this class:

Class Number Class Name Patents
236/ Combined thermostat and flow controlled 0
236/24.5 Flow and pressure controlled 3
236/25R Flow controlled 20
236/26R Pressure-operated 5
236/22 Radiator type 4
236/21R Safety cut-out 24
236/ Thermostatic 0
236/20A Top burner control 14


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8677946 Hot water system configuration, descaling and heating methods therefore Mar. 25, 2014
8561913 Device for dispensing water with variable temperatures Oct. 22, 2013
8550369 Programmable water heater thermostat controller Oct. 8, 2013
8544761 User activated hot water heater and control system Oct. 1, 2013
8490886 Modulating boiler system Jul. 23, 2013
8406932 Spa control with improved heater management system Mar. 26, 2013
8392027 Spa control system with improved flow monitoring Mar. 5, 2013
8297525 Digital control system for tankless water heater assembly Oct. 30, 2012
8245987 Mounting bracket for use with a water heater Aug. 21, 2012
8186312 Control system for modulating water heater May. 29, 2012
7996182 Water heater monitor/diagnostic display apparatus Aug. 9, 2011
7971796 Control device for conserving energy of a water heater Jul. 5, 2011
7818095 Water heater monitor/diagnostic display apparatus Oct. 19, 2010
7798107 Temperature control system for a water heater Sep. 21, 2010
7712677 Water heater and control May. 11, 2010
7506617 Control system for modulating water heater Mar. 24, 2009
7490481 Vapor compression system startup method Feb. 17, 2009
7469840 Controller for a fuel fired water heating application Dec. 30, 2008
7387090 Method for control of steam quality on multipath steam generator Jun. 17, 2008
7278587 Thermal treatment apparatus and thermal treatment method Oct. 9, 2007
7195176 Temperate water supply system Mar. 27, 2007
7127905 Vapor compression system startup method Oct. 31, 2006
7096828 Self cleaning boiler and steam generator Aug. 29, 2006
7090140 Method and device for monitoring burners Aug. 15, 2006
7000847 Quick recovery water heater Feb. 21, 2006
6981650 Pool/spa heater Jan. 3, 2006
6955301 Water heater and control Oct. 18, 2005
6918356 Method and apparatus for optimizing a steam boiler system Jul. 19, 2005
6880493 Gas water heater and method of operation Apr. 19, 2005
6831257 Control system for multiple heating towers a method for heating liquids and distributing operating wear amongst a plurality of heating towers Dec. 14, 2004
6728600 Distributed appliance control system having fault isolation Apr. 27, 2004
6627858 Hot-water supply system Sep. 30, 2003
6571829 Gas control valve in water heater Jun. 3, 2003
6375087 Method and apparatus for self-programmable temperature and usage control for hot water heaters Apr. 23, 2002
6354511 Portable system for heating water Mar. 12, 2002
6293471 Heater control device and method to save energy Sep. 25, 2001
6212894 Microprocessor control for a heat pump water heater Apr. 10, 2001
6198295 Apparatus and method for detecting electrical resistance change in connectors to a remote mounted sensor Mar. 6, 2001
6119949 Apparatus and method for providing a multiple option select function Sep. 19, 2000
6059195 Integrated appliance control system May. 9, 2000
6057772 Apparatus and method for optically sensing liquid level in cooking vessels May. 2, 2000
5988516 Solar hot water heating system Nov. 23, 1999
5968393 Hot water controller Oct. 19, 1999
5831345 Priority relay circuit with timer Nov. 3, 1998
5749327 Method for controlling gas supply of a gas boiler May. 12, 1998
5713515 Method and system in a fluid heating apparatus for efficiently controlling combustion Feb. 3, 1998
5697551 Heating system of the type for apartments or offices in buildings Dec. 16, 1997
5660328 Water heater control Aug. 26, 1997
5626287 System and method for controlling a water heater May. 6, 1997
5443206 Standby loss minimizing controller for boilers with tankless water heaters Aug. 22, 1995

1 2










 
 
  Recently Added Patents
Perfume bottle
HSP20 inhibits amyloidogenesis and neurotoxicity
Driving system of display panel having a circuit of a voltage generator and driving method thereof
Automatic setup of reflector instances
Method and system for parallelizing data copy in a distributed file system
Determining system for localization methods combination
Automated difference recognition between speaking sounds and music
  Randomly Featured Patents
Double wall cooking vessel
Tread portion of an automobile tire
Irradiation device
Drain cleaner
Font generation method and apparatus with single font memory for serving different scan formats
Methods of forming fan-shaped effusion holes in combustors
Suture tipping apparatus and method
Apparatus for measuring rotational angles
Retainer and wear sleeve for rotating mining bits
Autoranging phase-lock-loop circuit