Class / Patent application number | Description | Number of patent applications / Date published |
073540420 | Thermal | 7 |
20100043538 | METHODS OF AND APPARATUS FOR DETERMINING THE VISCOSITY OF HEAVY OIL - The viscosity of a heavy oil is estimated according to a power law equation which relates the heavy oil viscosity to a function of the assumed, measured, or estimated glass transition temperature of the heavy oil and the measured temperature of the heavy oil. | 02-25-2010 |
20100186486 | VISCOMETER FOR MOLTEN PLASTIC - The aim of the invention is to further improve a device for measuring the viscosity of plastic melts in such a manner that it comprises as few parts as possible, can be used as universally as possible, is economical to operate and, in particular, that the measurement path limiter can be changed in an easy and simple manner. To this end, the device comprises a melt channel ( | 07-29-2010 |
20100242577 | Test Sample Heating Apparatus and Method - A test sample heating apparatus and method includes a heating jacket that applies heat to a sample vessel containing a test sample. The heating jacket has a vessel-receiving recess that is sized and shaped to allow the sample vessel to be placed within the recess with limited annular spacing between at least part of the sample vessel exterior surface and at least part of the heating jacket recess interior surface. Proximate surfaces of at least one of the heating jacket and the sample vessel may be coated with a dark coating to enhance heat transfer. | 09-30-2010 |
20110061451 | Apparatus and Method for Measuring Rheological Properties of a Fluid Containing Particulate - An apparatus and a method for testing a viscosified fluid containing particulate indicate when the particulate is in suspension within the fluid and when it is not. The apparatus and method stir the fluid and particulate mixture for a time during which the viscosity of the fluid changes such that during a first period of the stirring time substantially all the particulate remains suspended in the fluid and during a second period of the stirring time substantially all the particulate settles out of suspension in the fluid. A signal is generated during the first and second periods such that the signal has a characteristic that changes from the first period to the second period to indicate the change in particle carrying ability of the fluid. Other characteristics, including crosslinking time, can also be determined. A test chamber includes projections extending from the inner surface of a cup receiving the fluid and from an axial support extending into the fluid in the cup. | 03-17-2011 |
20120024047 | METHOD FOR ESTABLISHING RHEOMETRIC PARAMETERS OF SAMPLES AND ROTATIONAL RHEOMETER - A method establishes rheometric parameters of samples using a rotational rheometer. A thickness of a measurement gap delimited by measurement parts is measured by a measuring unit and a predetermined thickness value is adjusted, readjusted or kept constant when the measurement temperature is changed or set to a predetermined measurement temperature setpoint value. Accordingly, starting at a time at which at least one region of a measurement part has reached the predetermined measurement temperature, measurement values to be established, more particularly continuously, at predetermined measurement times and/or for predetermined time intervals delimited by predetermined measurement times, for the changing thickness of the measurement gap and/or for the rate of change in thickness or readjustment of thickness, and for the measurement of the rheological parameters only to be commenced once these measurement values have dropped below a specific predetermined threshold. | 02-02-2012 |
20120180553 | Kinematic viscometer and method - A viscometer assembly includes a first plate with a rail configured to constrain fluid thereon between its edges by surface tension. A second opposing plate has a surface spaced from the rail by a predefined gap of constraining fluid to the rail by surface tension when the rail is inclined and gravity pulls the fluid along the rail. The kinematic viscosity of the fluid is determined as a function of the predetermined gap and the time it takes the fluid to flow along the rail. | 07-19-2012 |
20140311226 | RHEOMETER WITH RADIANT HEATING OF SAMPLE FLUID - A rheometer instrument with radiant heating of sample fluid with use of emissive/absorbing spaced surfaces of a sample container and an interior surface and of a chamber surrounding the sample container in part that is in a heating unit and controls for reliably reaching and maintaining target sample temperatures. The sample fluid can be pressurized. | 10-23-2014 |