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| Number | Title | Issue Date |
| 7533560 | Horizontal binocular microscope for vertically gravitated and floating samples An apparatus and process for visual observation and measurement of aggregated, granular and floating or suspended particles samples, which are gravitationally separated is disclosed. The first part of apparatus is the horizontally focused binocular microscope with v... | 05/19/2009 |
| 7010962 | Characterization of liquids using gas bubbles An apparatus and method is described for measuring properties of bubbles from which certain physical characteristics of the liquid in which the bubbles are generated can be determined. The evolution of a bubble includes (1) formation and growth at a nozzle disposed ... | 03/14/2006 |
| 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 |
| 5844128 | Method and apparatus for rapid determination of blood sedimentation rate An apparatus and method for rapid determination of erythrocyte sedimentation rates for a blood specimen (29) which can be linearly transposed to Westergren sedimentation rates. The method includes the steps of inducing accelerated rouleaux formation in th... | 12/01/1998 |
| 5723773 | Bubble detector The presence of bubbles on such photographic material, as is well known, results in significant defects in the photographic materials produced so that it is important, in the manufacture of such photographic materials, to detect the presence of such bubbl... | 03/03/1998 |
| 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 |
| 5598251 | Concentration sensing by viscosity measurement In a liquid toner chamber (2) of a copier or printer a top plate (5) is moved upward and allowed to fall. The capacitance between the plates is used to define their separation and the time for the plates to move between predetermined locations is used to ... | 01/28/1997 |
| 5551281 | Method for determining gas hold-up A method and apparatus for determining gas hold-up in a fermentation culture, in which, prior to aeration and during fermentation, a high frequency alternating signal is input to electrodes in electrical contact with the culture, the magnitude of the reac... | 09/03/1996 |
| 5505074 | Apparatus and method for determining minimum miscibility pressure An apparatus and method for determining the minimum miscibility pressure of a system comprising a gas and a liquid. A liquid-filled tube is equilibrated at a predetermined temperature and initial pressure, and pressure changes are determined as a single g... | 04/09/1996 |
| 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 |
| 5327778 | Apparatus and method for viscosity measurements using a controlled needle viscometer An apparatus and method are disclosed for accurately determining viscosity of Newtonian and non-Newtonian fluids using a controlled needle viscometer. The controlled needle viscometer includes a vertical sample insert tube filled with the liquid of which ... | 07/12/1994 |
| 5289716 | Monitoring and analyzing waste glass compositions A device and method for determining the viscosity of a fluid, preferably molten glass. The apparatus and method uses the velocity of rising bubbles, preferably helium bubbles, within the molten glass to determine the viscosity of the molten glass. The bub... | 03/01/1994 |
| 5144832 | Flow characterization apparatus and process There is provided an apparatus, and a process using the apparatus, for determining the flow characteristics of a synthetic rubbery polymer in which the vertical displacement is measured of a contact rod which is in contact with a disc contacting a sample ... | 09/08/1992 |
| 4964297 | Viscosimeter An improved falling float viscosimeter for measurement of over a wide range of viscosities. Use of a plurality of float members, at least one of which contains an aperture, enables the device to measure multiple ranges. Rate of descent of the floats may b... | 10/23/1990 |
| 4873872 | Float for fluid measurements A float for use in a fluid measurement device, symmetric about a central axis and containing an aperture along the axis which may be sized differently according to each float. When used in a rotameter type flowmeter, greater range and sensitivity in readi... | 10/17/1989 |
| 4852388 | Method for measuring density of Newtonian and non-Newtonian fluids The present invention relates to a method for determining the density of a liquid using a falling needle viscometer. The viscometer includes a vertical cylinder which is filled with the liquid the density of which is to be determined. Using a funnel at th... | 08/01/1989 |
| 4805659 | Method of driving a centrifuge and device for carrying out the method In centrifuges that concentrate liquids that contain suspended solids and wherein the concentrated solids are removed from the centrifuge at a constant rate, the concentration of solids leaving the centrifuge must be regulated. Some of the concentrated so... | 02/21/1989 |
| 4752449 | Apparatus for coagulation detection by gas flow or plunger sensing techniques Coagulation is detected in a fluid sample such as blood which has been inserted into a cartridge and operated on by an actuator mechanism. The cartridge may be of either of two types: a plunger sensor cartridge wherein a plunger assembly is reciprocated i... | 06/21/1988 |
| 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 |
| 4637250 | Apparatus and method for viscosity measurements for Newtonian and non-Newtonian fluids The present invention relates to an apparatus and method for determining the viscosity of Newtonian and non-Newtonian fluids. More particularly, the present invention relates to an apparatus and method for determining the viscosity of a fluid by measuring... | 01/20/1987 |
| 4599219 | Coagulation detection by plunger sensing technique Coagulation is detected in a fluid sample contained in either a gas flow cartridge or a plunger sensor cartridge, either one of which may be inserted in an actuator mechanism which has the capability of acting on either type of cartridge. Coagulation is d... | 07/08/1986 |
| 4517830 | Blood viscosity instrument Apparatus for detecting the viscosity of blood comprises a hypodermic syringe including a transparent hollow tube, a needle secured to one end of the tube and a plunger in the tube for creating a vacuum for extracting a predetermined volume of blood and d... | 05/21/1985 |
| 4308750 | Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells Method and apparatus for determining diameter and wall thickness of hollow microspheres or shells wherein terminal velocities of shells traveling in fluid-filled conduits of differing diameters are measured. A wall-effect factor is determined as a ratio o... | 01/05/1982 |
| 4276383 | Clot lysing timer A clot lysing timing device consisting of a thermostatically controlled assembly including heated blocks formed with wells to receive precooled test tubes containing liquid with clots formed by the addition of thrombin to plasma (or to a mixture of fibrin... | 06/30/1981 |
| 4154094 | Fluid measuring apparatus A fluid handling apparatus, such as a viscometer of the falling piston type, wherein at least a portion of the fluid in a main conduit is diverted into a secondary conduit system which includes a measurement channel having a filter at the entrance to prev... | 05/15/1979 |
| 4048020 | Method and apparatus for the control of pitch operation A method for controlling the production of pitch and the like is disclosed comprising simultaneously measuring the viscosity and temperature of the pitch material from the production unit, comparing the measured value with a predetermined correlation of t... | 09/13/1977 |
| 4048056 | Method for the control of pitch operation A method for controlling the production of pitch and the like is disclosed comprising simultaneously measuring the viscosity and temperature of the pitch material from the production unit, comparing the measured value with a predetermined correlation of t... | 09/13/1977 |
| 4027516 | Viscometer system A viscometer system for providing an indication of the viscosity of a fluid and operable on the falling slug principle and providing a means for providing an output indicative of viscosity as a function of elapsed time.... | 06/07/1977 |
| 3967934 | Prothrombin timer A system and method is provided which has the general capabilities of measuring the speed of coagulation, congealing or solidification of a fluid sample, and which has particular utility in the measurement of the time required by a sample under test to in... | 07/06/1976 |
