Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 236/31
Name: Automatic temperature and humidity regulation > Closed fluid heaters > Pressure-operated > Float
Description: Devices in which the pressure acts on a body of liquid, thereby varying the level thereof, and a float or piston rising and falling with the change in level of the liquid operates the controlling means. Also includes devices where a float is raised more or less by change in pressure of steam thereunder when water boils.

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Method and system for billing based on color component histograms
Label printer
Method and device for reliable estimation of network traffic
Interface circuit and interface system
Synergistic compositions for the treatment of topical viral infections
Method and assembly for determining the temperature of a test sensor
System and method for dynamic quality-of-service-based billing in a peer-to-peer network
  Randomly Featured Patents
Method and apparatus for balancing the filling of injection molds
Polyanhydride modified adducts or reactants and oleaginous compositions containing same
High tensile strength steel having favorable delayed fracture resistance and method for manufacturing the same
Thermal assembly coupled with an appliance
Apparatus for variable bit rate control in video compression and target bit allocator thereof
Selective production of para-xylene by conversion of olefins
Methods and related compositions using specific indanes to reduce weight and inhibit lipase, .alpha.-amylase and .alpha.-glucosidase activity in mammals
Solid-state imaging apparatus
Modular folding tables
In-situ etch of multiple layers during formation of local interconnects