U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 73/445 - Continuous test fluid supply


Subclass of Class 73 - Measuring and testing
Definition: Devices wherein provision is made for the continuous supply
No. of patents: 7
Last issue date: 06/17/2008


NumberTitleIssue Date
7389188Fluid-structure coupled numerical simulation method and program for fluid-structure coupled numerical simulation storage device
A fluid-structure coupled numerical simulation method is provided. The method uses a finite volume method employing an orthogonal mesh and a computer and memory setting a solid area based on a solid rate inside a mesh and at a tangent position to each mesh, includin...
06/17/2008
6913438Pump lubrication system including an external reservoir
A circulating lubrication system for a centrifugal pump, or other rotating equipment utilizing an oil sump, is disclosed. The lubrication system includes an external reservoir located distant from the main lubrication chamber, so that lubricating fluid from the main...
07/05/2005
6408694Apparatus and method for on-line monitoring of a liquid density
An apparatus and a method for on-line, real-time monitoring of a liquid density in a chemical process are provided. The apparatus is constructed by an upright, cylindrical housing that has a cavity defined therein for holding a liquid, and a density indic...
06/25/2002
4905508Radiator hose hydrometer
A radiator hose hydrometer includes a substantially horizontally disposed transparent tubular conduit interposed in the upper radiator hose of a liquid cooled engine. A hydrometer is mounted within the tubular conduit and is comprised of a series of arcua...
03/06/1990
4680965Process for continuous density measurement
A process for the continuous measurement of the density of a liquid by means of an aerometer body swimming in the liquid is characterized by the feature that the liquid is allowed to flow periodically at an increased flow rate past the aerometer body in o...
07/21/1987
4077265Alcohol testers
The present invention relates to a modification for circulating systems utilized with most alcohol dampening systems on lithographic printing presses and provides a fountain solution testing reservoir which maintains a constant solution level, constantly ...
03/07/1978
3952761System for controlling density of liquids
A system for accurately controlling the density of liquids in a processing system employing a chamber having a finned hydrometer with control activation mechanism floating in a reservoir of continuous sample solution, and having a plurality of chambers so...
04/27/1976
 
Sign InRegister
Username  
Password   
forgot password?