Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/42
Name: Fluid handling > Control by change of position or inertia of system > Position relative body of water (e.g., marine governors) > Pressure or head controlled
Description: Apparatus which includes means to sense the pressure or head of the body of water in which the system exists.

Patents under this class:

Patent Number Title Of Patent Date Issued
8323573 Microfluidic cartridge with solution reservoir-pump chamber Dec. 4, 2012
6164922 Flow control valve for a pump for conveying a medium Dec. 26, 2000
6085779 Draining gutter Jul. 11, 2000
5819328 Hydrostatic drain plug Oct. 13, 1998
4125129 Fixed and variable resistance fluid throttling apparatus Nov. 14, 1978
4121771 Drip irrigation emitter Oct. 24, 1978
4120033 Apparatus and method for determining pumping system head curves Oct. 10, 1978

  Recently Added Patents
Reactor core of liquid metal cooled reactor
Method of transmitting data using spatial multiplexing
Computer program and apparatus for evaluating signal propagation delays
Biosensor kit
Radio frequency power delivery system
Organic elelectroluminescent display
  Randomly Featured Patents
Assembly composed of a pressurized fluid mechanism and a disc brake coupled thereto
Apparatus for sensing the feeding of sheets of paper
Method for producing fibrous sheet
Thermal transfer color image forming apparatus with image color and image color density control functions
Hub nut with washer
Covering for wall, ceiling or floor linings
Racket stringing tension measuring device
Rotation control device for a tool
Separating device for sheet-like member including separating pawl coated with amorphous carbon layer
Isolation amplifier