By Separation And Subsequent Measurement (e.g., By Weighing, X-ray Or Microscope, Etc.) Patents (Class 73/61.72)
-
Patent number: 6816791Abstract: A novel methodology for rapid, cost-efficient discovery, identification, or improvement of additives and/or admixtures for hydratable cementitious compositions. Multiple formulations comprising hydratable cementitious compositions are deposited into a plurality of receptacles. A first assay output is obtained, such as through x-ray diffraction, which is then correlated to provide a second assay output value corresponding to physical or chemical properties of the cementitious compositions.Type: GrantFiled: October 15, 2002Date of Patent: November 9, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: David F. Myers, Felek Jachimowicz, Joanna D. Blanchard, Neal S. Berke, Josephine H. Cheung, Paul J. Sandberg, Frank G. Serafin, Peter V. Coveney
-
Patent number: 6691557Abstract: The present invention is directed to a method for analyzing the maintenance status of liquid-filled electric equipment. An accurate indication of the maintenance state of an electric device and its insulating liquid is obtained using an analysis method comprising a particle analysis of suspended particles and sediment contained in the liquid. The analysis method can further comprise a chemical analysis of the insulating liquid. This analysis results in profiles of the liquid that give an accurate indication of the maintenance state of the electric device.Type: GrantFiled: October 10, 2001Date of Patent: February 17, 2004Inventor: Norman Rice
-
Patent number: 6598466Abstract: A method including: sonicating a liquid suspension of first particles; and analyzing the liquid phase for second particles. An apparatus including: a sonicator adapted to sonicate a liquid suspension of first particles; and a first analyzer adapted to analyze the sonicated liquid phase for second particles. The method and apparatus can be used to analyze the adhesion force relationships between the main or host first particles and guest or surface additive second particles.Type: GrantFiled: October 5, 2000Date of Patent: July 29, 2003Assignee: Xerox CorporationInventors: Allen F. Deluca, Timothy L. Lincoln, Hon H. Le, Christine L. Demay, Eric Murray, David A. Allen, Leela Ganguly
-
Publication number: 20030110840Abstract: Systems and methods for detecting particles are provided. In one embodiment, capillary electrophoresis is used to separate particles that may be detected by methods including, for example, laser induced fluorescence. The systems and methods are useful for separating and evaluating individual particles including, for example, subcellular particles.Type: ApplicationFiled: July 24, 2002Publication date: June 19, 2003Inventors: Edgar A. Arriaga, Ciaran F. Duffy, Dmitry Andreyev
-
Patent number: 6571611Abstract: Tortuous passageways are provided in a substrate component that is retained within a holding chamber. Fuels and fuel mixtures to be comparatively tested are introduced into the holding chamber and into the tortuous passageways of the substrate component. The substrate component is controllably maintained at an elevated temperature during a specified number of defined test cycles. The substrate component is then removed and its after-test weight compared with an initial weight before the test. The tortuous passageways of the substrate component provide increased surface area subject to deposit formation and extended residence time for fuel to remain in contact with the substrate surface, thereby greatly enhancing the measured difference between tested fuels and fuel mixtures.Type: GrantFiled: February 4, 2002Date of Patent: June 3, 2003Assignee: Southwest Research InstituteInventors: Paul Lacey, Jose De La Cruz, Eliazar H. Saucedo, Jack R. Compton
-
Patent number: 6511606Abstract: A simple, economical acid rapid method for determining the contaminate particle size appearing in a fluid being filtered includes a filter housing that eliminates fluid bypass with a multi-layered laminated filter disposed therein.Type: GrantFiled: May 18, 2001Date of Patent: January 28, 2003Assignee: Mechanical Manufacturing Corp.Inventor: Sidney Goldman
-
Patent number: 6508104Abstract: A method including: sonicating a liquid suspension of first particles; and analyzing the liquid phase for second particles. An apparatus including: a sonicator adapted to sonicate a liquid suspension of first particles; and a first analyzer adapted to analyze the sonicated liquid phase for second particles. The method and apparatus can be used to analyze the adhesion force relationships between the main or host first particles and guest or surface additive second particles.Type: GrantFiled: October 5, 2000Date of Patent: January 21, 2003Assignee: Xerox CorporationInventors: Allen F. Deluca, Timothy L. Lincoln, Hon H. Le, Christine L. Demay, Eric Murray, David A. Allen, Leela Ganguly
-
Patent number: 6499337Abstract: An in-line monitoring apparatus for monitoring particulate matter in a liquid stream includes an inlet and outlet for ingress and discharge of a liquid stream. An in-line particulate matter-sampling unit is arranged for accumulation of particulate matter suspending in the liquid flow between the inlet and outlet, including an apparatus for measuring particulate matter accumulation therein. Further, there is apparatus for separating particulate matter from the liquid stream and for providing the particulate matter to the in-line sampling unit and control apparatus for operating the in-line monitoring apparatus in a first and second operative mode.Type: GrantFiled: February 16, 2001Date of Patent: December 31, 2002Assignee: Hoffman & Hoffman Electronic and Electro Mechanical Engineering Ltd.Inventor: Amos Hoffman
-
Patent number: 6491872Abstract: A system and method for detecting the presence of submicron sized particles in a sample taken from the environment includes a collecting a sample from the environment and purifying and concentrating the submicron particles in a sample based on the size of the particles. The purified and concentrated particles are detected with an apparatus which includes an electrospray assembly having an electrospray capillary, a differential mobility analyzer which receives the output from the capillary, and a condensation particle device for counting the number of particles that pass through the differential mobility analyzer. The system is intended to collect a sample containing submicron size particles having a size from about 10 to about 350 nanometers and include submicron size particles selected from the group consisting of viruses, prions, macromolecules, proteins, satellites, and virus fragments. Automated controls can be utilized to control the flow of the sample through the system.Type: GrantFiled: September 15, 2000Date of Patent: December 10, 2002Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Charles Harold Wick
-
Patent number: 6485686Abstract: A system for detecting the presence of different size groups of submicron size particles in a fluid sample collected from the environment includes apparatus for collecting the environment. The collected a liquid sample containing submicron size particles selected from the group of viruses, prions, macromolecules, proteins and satellites, is directed to an electrospray assembly having an electrospray capillary for ejecting droplets of the fluid sample under the influence of an electric field. The ejected droplets from the electrospray assembly are directed to a differential mobility analyzer which passes the ejected droplets through an electric field, and the particles are then directed to a condensation particle device for counting the number of particles that pass through the electric field.Type: GrantFiled: September 15, 2000Date of Patent: November 26, 2002Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Charles Harold Wick
-
Patent number: 6453738Abstract: A method and apparatus for retrieving magnetic casing fragments from a well using a shrouded magnet are disclosed. Retrieving casing fragments allows the determination of weight loss from the casing to assist in analyzing the integrity and the condition of the casing and to determine whether more expensive analysis is required. The shrouded magnet, that is formed by a non-magnetic container enclosing a source of magnetic field, recovers metal casing fragments by attracting them and other magnetic materials from oil and gas well fluids passing by the shrouded magnet device, which fragments are easily separated from the device by removing the source of magnetic field from the container.Type: GrantFiled: April 10, 2001Date of Patent: September 24, 2002Assignee: Cesmat Service Company, Inc.Inventors: Mark Cesmat, Don Holland
-
Patent number: 6405582Abstract: A method and apparatus for determining the deposition of organic and inorganic contaminants, such as biofilm, on a coupon is disclosed. The method and apparatus include a coupon suspended from a weight sensor within a reservoir tank. The reservoir tank includes fluid inlet means for receiving a fluid sample which flows over the surface of the coupon for a predetermined period of time to allow contaminants present in the fluid sample to deposit on the coupon surface. At regular intervals, the reservoir tank is drained and the coupon is allowed to dry and is weighed. The weight of the contaminants which have deposited on the surface of the coupon is determined by comparing the weight of the coupon to its previous weight. In this manner, a computer system attached to the weight sensor can analyze a series of weights and present the results in a time-deposit graph.Type: GrantFiled: September 7, 2000Date of Patent: June 18, 2002Assignee: Hercules IncorporatedInventor: Helmut Boettcher
-
Publication number: 20010015096Abstract: In-line monitoring apparatus, for monitoring particulate matter in a liquid stream, which includes:Type: ApplicationFiled: February 16, 2001Publication date: August 23, 2001Applicant: Hoffman & Hoffman and Electronic and Electro-Mechanical Engineering Ltd.Inventor: Amos Hoffman
-
Patent number: 6269684Abstract: A dynamic fluid loss cell apparatus and method for measuring filter-cake build-up on a simulated core of the well-bore and for measuring the effectiveness of a spacer fluid to remove filter-cake. There is also provided, a dynamic fluid loss cell apparatus and method for measuring the dynamic fluid loss during the simulated build-up and removal of the filter-cake. The apparatus and method further provides for performing the measurements under various conditions including temperature and differential pressure.Type: GrantFiled: October 5, 1998Date of Patent: August 7, 2001Assignee: Halliburton Engergy Services, Inc.Inventors: Voldi E. Maki, Jr., Fred L. Sabins