Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 236/24
Name: Automatic temperature and humidity regulation > Closed fluid heaters > Combined thermostat and flow controlled > Two or more valves
Description: Devices in which the heating means, usually a gas-burner, is controlled by the combined action of a thermostat in the fluid heated and a flow-motor operated by the flow of the fluid heated, the thermostat and motor operating on separate valves.

Patents under this class:

Patent Number Title Of Patent Date Issued
7025281 Programmable thermostat incorporating air quality protection Apr. 11, 2006
6024290 Fluid tempering system Feb. 15, 2000
4702306 Apparatus for controlling a process variable of a flowing medium Oct. 27, 1987
4564003 Solar/gas heater Jan. 14, 1986
4346835 Instantaneous water heater gas control valve Aug. 31, 1982

  Recently Added Patents
Photovoltaic system with integrated photovoltaic panel and battery
Systems and methods for processing telephone calls
System and method for managing content on a network interface
Assisting apparatus, method, and program for checking crosstalk noise between hierarchized modules in a semiconductor circuit
Method, apparatus and computer program product for providing metadata entry
Combination photovoltaic and wind power generation installation
Method to prevent hyper frame number de-synchronization in a wireless communication system
  Randomly Featured Patents
Synthesis of sulfurized oligonucleotides
Radial-shaft sealing rings with heat dissipation segments
Automatic cache resizing system
Envelope printing apparatus with side aligners extending through a moveable elevator platform
Protective helmet
Apparatus and method for preamble detection and integer carrier frequency offset estimation
Battery charger
Secondary loop refrigeration system
Enzymatic detergent composition
Window fan