Resources Contact Us Home
Browse by Category: Main > Information Technology
Class Information
Number: 73/861.46
Name: Measuring and testing > Volume or rate of flow > Using differential pressure > With time integration > By mechanical means > Including pressure applied to liquid column or reservoir
Description: Subject matter wherein a liquid column or reservoir is subjected to the pressure to be measured and the subsequent change in level is sensed and utilized as an input to the integration means.

Patents under this class:

Patent Number Title Of Patent Date Issued
6898339 Multiple mode pre-loadable fiber optic pressure and temperature sensor May. 24, 2005
6666081 Sensor probe Dec. 23, 2003
6571605 Constant-head soil permeameter for determining the hydraulic conductivity of earthen materials Jun. 3, 2003
5515734 Variable area flow meter May. 14, 1996

  Recently Added Patents
Electrophoretic element and display device
Method and apparatus for controlling a multi-node process
Compounds and compositions for treating chemical warfare agent-induced injuries
Solid-state image sensing apparatus and electronic apparatus
Removable case
Universal data-driven computer proxy
Hypallergenic mosaic antigens and methods of making same
  Randomly Featured Patents
Boat hood
Bicycle control apparatus that sets a bicycle transmission to a predetermined gear ratio
Rotation control apparatus operating with a sync signal having variable intervals
Intelligent slicing of monitored network packets for storing
Replaceable fuser member
Molding apparatus for articles having internal undercuts
Ternary energy supply circuit with a high frequency rejection filter
Structure of card medium having embossed patterns and method of manufacturing the same
Semiconductor memory device including a signal control device and method of operating the same
Method and apparatus with data storage protocols for maintaining consistencies in parallel translation lookaside buffers