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| Number | Title | Issue Date |
| 7357016 | Process and device for determining viscosity A process and a device for determining the viscosity of a fluid are proposed. Very simple and accurate determination is enabled in that the magnetic particles in the fluid are set into vibration by a magnetic field which varies over time. A measurement of the amplit... | 04/15/2008 |
| 7089784 | Device for evaluating the signal from a viscosity sensor A device is provided for evaluating the signal from a viscosity sensor having an amplifying circuit. The amplification of the amplifying circuit is controlled by a temperature signal from a temperature sensor. ... | 08/15/2006 |
| 6427525 | Viscosity sensor and regulator for continuously controlling a quenching bath A viscosity sensor operates by measuring the time taken for a piston to fall within the measuring chamber of a calibrated tube immersed in a bath, and an apparatus comprising the sensor is used for the continuous control of a quenching bath. A cam or an e... | 08/06/2002 |
| 6134394 | Image forming apparatus for detecting viscosity of a liquid type developer by utilizing a developer density detecting device An image forming apparatus having an improved developer density detecting device for detecting density of a liquid type developer without using an optical sensor. Density of the liquid type developer is detected based upon viscosity of the liquid type dev... | 10/17/2000 |
| 5959196 | In-line viscometer The viscometer of the present invention comprises a chamber, and inside the chamber is secured a measuring tube and a falling piston. The piston has a lift plate secured to its top by means of a short small shaft. There are one or more lifting fingers, wh... | 09/28/1999 |
| 5698773 | Viscometer A viscometer provided with a transducer for converting a viscosity parameter of a fluid into an electrical signal. The transducer comprises a container, provided with a cavity for the fluid to be measured, a support element firmly connected thereto and an... | 12/16/1997 |
| 5656429 | Polynucleotide and protein analysis method using magnetizable moieties A method for sequencing nucleotides by attaching magnetizable moieties to the components of a mixture of such polynucleotide proteins and fragments, subjecting the mixture to a separation procedure to distribute the compounds on a substrate in a pattern a... | 08/12/1997 |
| 5629209 | Method and apparatus for detecting viscosity changes in fluids An apparatus for detecting changes in the viscosity of a fluid comprises a cartridge having a fluid receiving/dispensing reservoir, one or more fluid-receiving chambers, and a conduit that permits fluid communication between the fluid receiving/dispensing... | 05/13/1997 |
| 5394739 | Viscosity tester and method with orbiting object A viscosity tester includes a free standing magnetic object disposed in fluid in a stationary receptacle. A magnetic force drives the object in an orbit and the magnetic force, the speed of the object and the lag angle between the magnetic field and the o... | 03/07/1995 |
| 4648262 | Microviscosimeter A viscosimeter of the kind wherein a capillary tube containing a fluid, the viscosity of which is to be measured, and a metal ball is supported so that the ball will gravitate from the top of the tube to the bottom and a magnet is used to periodically rai... | 03/10/1987 |
| 4448060 | Viscosity measurement using pressurized viscometer device A viscosity measuring method and viscometer device for remotely determining viscosity of fluids within an enclosed container. The viscometer device comprises a vertically-oriented tubular probe which contains a tube enclosed by multiple adjacent electroma... | 05/15/1984 |
| 4388823 | Apparatus for automatically measuring the viscosity of liquids The apparatus for measuring the viscosity of liquids comprises an inclined viscosimetric tube (1) enclosing a ball (3). A device is provided for measuring the duration of fall of the ball (3) in the tube (1). An electromagnet (8) adjacent the tube (1) has... | 06/21/1983 |
