Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7294513 | Method and apparatus for characterizing solutions of small particles A method and apparatus is described by which means molecules in suspension may be characterized in terms of the size and mass distributions present. As a sample solution is separated by centrifugal means, it is illuminated at a particular radial distance from the ax... | 11/13/2007 |
| 7130851 | System and method for maintaining and displaying user ordered lists A system and method for updating a source copy of an ordered list (the source list) comprising a plurality of list items according to modifications made to the order of the list items in a local copy of the ordered list (the local list) is provided. Each list item i... | 10/31/2006 |
| 6395557 | Method for determining an analyte present in a solution The invention relates to a method for determining an analyte in a solution. This method includes the following steps: a) fixing and immobilizing said analyte, for example via the presence of a ligand L, on the inner surface of a conduit (3) having a reduced cr... | 05/28/2002 |
| 6230551 | Evaluation of particulate contaminants A component is washed with a fluid to release particulate contaminant. The particulate-containing fluid is passed through a screen (22) having a known number of apertures of identical known size. The change in pressure caused by the accumulation of partic... | 05/15/2001 |
| 6203713 | Method for filtering at optimized fluid velocity There is provided in accordance with the invention a method for filtering comprising the steps of: providing a filter assembly comprising a depth filter and at least one microporous membrane; determining an optimal fluid velocity of the filter assembly by... | 03/20/2001 |
| 5662805 | Process and apparatus for controlling the dewatering of suspensions The addition of polymeric flocculant or other chemical dewatering modifier to a suspension flowing through a service line to a dewatering plant is controlled automatically in response to automatic determination of a filtration rate parameter. This may be ... | 09/02/1997 |
| 5314581 | Apparatus for simulating processing parameters and predicting variables in a papermaking operation including sequential pulsation, gravity and vacuum drainage, fines retention and paper formation An apparatus and method to simultaneously evaluate the drainage, retention and formation characteristics of paper pulp comprising mixing the paper pulp furnish in the top chamber of the apparatus, releasing the furnish into a middle chamber via a valve ha... | 05/24/1994 |
| 5233863 | Fluid loss measuring system and method A fluid loss cell has an outlet through which fluid lost during a fluid loss test flows. This outlet is connected in closed pressure communication with a fluid measuring device that senses the amount of lost fluid received in the device and generates an e... | 08/10/1993 |
| 5198116 | Method and apparatus for measuring the fouling potential of membrane system feeds The optimum antifoulant concentration and cleaning interval for reverse osmosis membranes is determined by providing samples of a liquid to be purified in a reverse osmosis system, the samples having a range of antifoulant concentrations added. The zeta p... | 03/30/1993 |
| 5046355 | Process for assessing cold start performance of a wax containing fuel Cold start performances in an engine of a wax-containing fuel may be assessed by drawing said fuel from a container under standardized conditions through a filter and measuring the rate of flow of fuel past said filter and comparing said flow rate with a ... | 09/10/1991 |
| 4848900 | Computerized automatic monitoring and recording system of erythrocyte sedimentation process An automatic monitoring and recording device for erythrocyte sedimentation employs a light source and a photodetector to detect the changes of light transmittance at the junction of plasma and red blood cell column. Changes of light transmittance at the j... | 07/18/1989 |
| 4801428 | Blood sample sedimentation test kit A test kit is provided for measuring the erythrocyte sedimentation rate automatically in the original blood collection tube which is of a size and is so modified to be used for the resulting testing that no further blood transfer is required. The blood co... | 01/31/1989 |
| 4748849 | Apparatus for dynamically measuring fluid loss characteristics An apparatus for testing fluid loss characteristics of a test fluid such as drilling mud under static or dynamic conditions, the apparatus having a filter medium cell which has a generally vertically disposed cylindrical wall, the apparatus further includ... | 06/07/1988 |
| 4610158 | Method for determining the sealability of drilling compounds A method for testing drilling compounds, particularly drilling fluids and cements to determine the drilling fluid and cements ability to seal porous formations surrounding the borehole. The method would generally comprise obtaining a representative sample... | 09/09/1986 |
| 4538452 | Bore-hole hydraulics simulator A bore hold hydraulics simulator for drilling fluid is disclosed, in which the drilling fluid is flowed along a permeable partition which divides a first volume containing the drilling fluid from a second volume adapted to collect filtrate passing through... | 09/03/1985 |
| 4446726 | Apparatus and method for measuring the filterability of a fluid at low temperatures An apparatus and a method of measuring the filterability of a fluid which includes a cold box having a temperature regulating mechanism connected thereto. Enclosed in the cold box is a filter holder connected between first and second cylinders. The filter... | 05/08/1984 |
| 4409820 | Apparatus and method for use in quantitative analysis of a fluid suspension An apparatus and method for use in the quantitative analysis of blood or a similar fluid suspension. The fluid suspension is spun about a central spin axis in a chamber which circumscribes the central spin axis and whose volume varies geometrically as it ... | 10/18/1983 |
| 4348890 | Apparatus and a process for determining the rheological properties of biological fluids An apparatus for determining the filterability of red blood cells comprises a first upper transparent block containing at the center a capillary having an inner diameter between 1 and 10 mm, which block is provided with two level detectors; a second lower... | 09/14/1982 |
| 4135389 | Specific surface fractionator A method and apparatus for determining the fractional distribution of fibers by specific surface in a sample of mechanically treated pulp comprising: a hydrocyclone, at least two collecting chambers, a pump to feed pulp to said hydrocyclone, means to sele... | 01/23/1979 |
| 4041502 | Sedimentation recorder A sedimentation recorder including an optical tracking head controlled to track the liquid-solid separation boundary in a tube containing a sample of liquid-solid mixture. The tracking head is controlled by a pulse operated servomotor which responds to th... | 08/09/1977 |
