Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7938953 | Selective heavy gas oil recycle for optimal integration of heavy oil conversion and vacuum gas oil treating An improved process for heavy oil conversion and upgrading and a combined method for heavy oil conversion and vacuum gas-oil treatment are described herein. The method utilizes the creation and recycle of a separate product from the vacuum still, which is thereafter... | 05/10/2011 |
| 7938952 | Process for multistage residue hydroconversion integrated with straight-run and conversion gasoils hydroconversion steps This invention relates to a novel integrated hydroconversion process for converting heavy atmospheric or vacuum residue feeds and also converting and reducing impurities in the vacuum gas oil liquid product. This is accomplished by utilizing two residue hydroconvers... | 05/10/2011 |
| 6669921 | Process for regenerating a catalytic redox solution, to include measuring the oxygen dissolved in the regeneration effluent and its application to desulfurization The present invention relates to a process for regenerating an at least partly reduced catalytic redox solution. The solution includes at least one polyvalent metal chelated by a chelating agent and is circulated in at least one regeneration zone while an... | 12/30/2003 |
| 6645272 | Process for deacidizing a gas by absorption in a solvent with temperature control In a process for treating a gas containing acid gases, the gas is contacted with a methanol-containing aqueous phase and is then contacted in an absorption column with a mixture of solvents including mehtanol, water and a solvent heavier than methanol. Th... | 11/11/2003 |
| 6553325 | Method for dimensioning an elastic structure subjected to a fluid in motion The invention is a method for dimensioning or adapting an elastic structure immersed in a fluid in motion, the structure having a length Lt. The method comprises: a) the natural excitation modes of the structure and their number N are defined; b) for at l... | 04/22/2003 |
| 6541417 | Catalyst based on a noble group VIII metal containing silicon and possibly boron, and its use in hydrotreating hydrocarbon-containing feeds The invention provides a catalyst including a support, at least one noble metal from group VIII of the periodic table, silicon as a dopant, optionally boron, optionally at least one group VIB element, optionally phosphorous and optionally at least one hal... | 04/01/2003 |
| 6464876 | Process and apparatus for a mixture resolution Disclosed is a process for the resolution of a mixture into at least one first fraction and one second fraction, the respective compositions of said fractions differing by at least one element. The process further comprises at least one elementary stage o... | 10/15/2002 |
| 6410671 | Zwitterion derivative and application to aqueous suspension properties The present invention relates to more or less substituted acrylamide or acrylate and zwitterion monomer hydrosoluble copolymers. The polymers have the general structure as follows: ##STR1## X and X' comprise a N+ --R1 --Z-... | 06/25/2002 |
| 6262941 | Method and device for seismic prospecting using a drilling tool acting in a well This invention is a method of conducting seismic prospecting operations using a drilling tool (1) acting at the bottom of a well (2), which creates very powerful seismic vibrations, transmitting reference signals representing the vibrations of the tool in... | 07/17/2001 |
| 6226390 | Method for modeling the pore-size distribution of a porous sample of variable porosity The pore-size distribution of a porous sample of variable porosity is modeled achievement of, allowing laboratory studies on the behavior of the medium modeled in relation to fluids. The porosity of the porous medium is modeled on one or more parting surf... | 05/01/2001 |
| 6065501 | Flexible tube having at least one elongated reinforcing element with a T-shaped profile A reinforced flexible tube having at least one helically wound elongated reinforcing element. The elongated reinforcing element has a T-shaped cross-sectional profile.... | 05/23/2000 |
| 6065539 | Well cementing method and material containing fine particles A method of cementing a casing in a well drilled in the ground comprises injecting a liquid material comprising phenol-formol resin from the surface, wherein the resin is modified by means of a determined amount of furfuryl alcohol, and an amount of miner... | 05/23/2000 |
| 6052651 | Statistical method of classifying events linked with the physical properties of a complex medium such as the subsoil A method of determining the position in subsoil of a population of physical phenomena linked with physical properties of the subsoil. Data are collected, for example, subsoil exploration or in-situ measurements. The phenomena are marked by points in a mul... | 04/18/2000 |
| 6041619 | Method of liquefying a natural gas with two interconnected stages Method of liquefying a natural gas wherein a first coolant mixture M1 is used for the first cooling stage and a second coolant mixture M2 for the second cooling stage, said mixture M2 being cooled in the first cooling stag... | 03/28/2000 |
| 6007306 | Multiphase pumping system with feedback loop The invention relates to a pumping system for applying a sufficient pressure increase to multiphase effluents for them to be conveyed from a source such as an petroleum producing well to a remote destination point. To improve pump function and render mana... | 12/28/1999 |
| 5894726 | Process for controlling the intake of a direct-injection four-stroke engine The present invention is a process for controlling the intake of a direct fuel injection four-stroke engine in at least two combustion chambers. A diferent intake for at least two cylinders or groups of cylinders is used in order to reduce exhaust emissio... | 04/20/1999 |
| 5862789 | Applied ignition internal combustion engine whose pistons have elliptical recesses The present invention relates to an applied ignition internal combustion engine having at least one cylinder in which a piston slides along the cylinder axis, with a cylinder head capping the cylinder and, together with the piston and cylinder, defining a... | 01/26/1999 |
| 5858791 | Method and device for the continuous measurement of variations in the overall saturation of a sample with incompressible immiscible fluids Saturation variations are obtained by displacing a first fluid (for example water) that initially saturates a sample (1) coated with resin (2) by injecting therein, through a first end plate or cap (3) and by means of a pump (7), a second fluid (for examp... | 01/12/1999 |
| 5854681 | Device and method measuring optically the characteristics of a substance According to an embodiment of the invention, the device comprises a unique optical path and a movable means providing for the selective passage of a light beam respectively through a transparent cell (4) containing a substance to be studied, at least one ... | 12/29/1998 |
| 5850621 | Method for optimizing the characteristics of an axial fluid circulation in a variable annular space around pipes The method according to the invention permits adapting for any fluid, a known model representative of the circulation of a fluid in an annular space around a motionless pipe, centered or eccentric uniformly over the total length thereof, to more complex c... | 12/15/1998 |
| 5846277 | Method for determining the optimum shape to be conferred on a thin movable plate including giving the plate a substantially threaded shape with a finite pitch The method relates to an optimizing method for determining the optimum shape of plates such as sheets of sheet metal, panes of glass, or other thin objects designed in particular to retract completely in order to leave a clear opening. To simplify the use... | 12/08/1998 |
| 5846411 | Single-phase fluid distributor-mixer-extractor for beds of granular solids Disclosed is a single-phase fluid distributor-mixer-extractor for separating beds of granular solids used in chromatography. The distributor includes a device for adding or removing a secondary fluid. The distributor further includes at least one calibrat... | 12/08/1998 |
| 5844564 | Method for generating a 3D-grid pattern matching the geometry of a body in order to achieve a model representative of this body The invention is a method applicable to a geologic structure, such as an oil bearing reservoir, defined from available data acquired either through measurements or through analyses and interpretations of seismic data or loggings performed in wells. The in... | 12/01/1998 |
| 5844463 | Process and device for regulating the temperature of a fluid The present invention relates to a process for regulating the temperature of a fluid circuit comprising a thermostatic valve, which consists in maintaining a leak rate through the valve once the valve has been opened a first time in order to eliminate the... | 12/01/1998 |
| 5820836 | Rotating catalytic cleaning device for polluted effluents A process of cleaning a gas and a rotating catalytic gas cleaning device including a crown of vertical axis driven into rotation in a cage. The crown has an annular catalyst bed covering its inner wall and an annular thermal load, outside the catalytic be... | 10/13/1998 |
| 5797737 | Catalytic combustion system with multistage fuel injection The present invention relates to a catalytic combustion system comprising a casing (1) having an inlet (2) for an oxidizer such as air, several fuel injection means (3, 5; 7) intended for a multistage fuel injection, and at least a first monolithic elemen... | 08/25/1998 |
| 5764515 | Method for predicting, by means of an inversion technique, the evolution of the production of an underground reservoir A model for simulating the behaviour of an underground reservoir is defined from initial geologic knowledge and available data. It allows production forecasts to be achieved from parameters representative of the initial data. The method notably consists i... | 06/09/1998 |
| 5755561 | Piston pumping system delivering fluids with a substantially constant flow rate A pumping system in accordance with the invention comprises n (nࣙ1) piston or diaphragm primary pumping modules (P1 to Pn) including each at least one pumping unit, connected by means of unidirectional valves (V11-V1n) respectively to n tanks (R1-Rn) co... | 05/26/1998 |
| 5749333 | Two-stroke internal-combustion engine depollution process and associated applications The present invention relates to a two-stroke internal-combustion engine depollution process including a separate and deferred delivery of fuel in relation to the air used to scavenge the burned gases, and having an advanced ignition delay with respect to... | 05/12/1998 |
| 5384040 | Process for the elimination of mercury and possibly arsenic from hydrocarbons A process for the elimination of mercury and possibly of arsenic from hydrocarbons wherein compounds containing mercury are transformed into elemental mercury, the charge is fractioned, and then the fractions rich in mercury are purified through contact w... | 01/24/1995 |
| 4762172 | Heat exchange device of the perforated plate exchanger type with improved sealing A heat exchange device is provided whose exchange zone is formed of a stack of perforated plates having perforations disposed so that superimposition of the perforations creates flow spaces for at least two fluids at different temperatures, said perforate... | 08/09/1988 |
| 4712198 | Process for optimizing the frequency spectrum of pulses emitted by an emission device comprising several seismic implosion forces A process is provided for optimizing the frequency spectrum of pulses emitted by implosion sources by attenuating the tripping or precursor peak preceding the main peak due to the implosion. A plurality of immersed sources are used at different depths and, by ... | 12/08/1987 |
| 4324646 | Process for converting C4 olefinic cracking cuts to alkylate and gasoline A process is provided for selectively polymerizing isobutene in an olefinic C4 cut comprising isobutene and normal butenes by contacting the cut with a catalyst consisting essentially of silica-alumina; whereby at least 90% of the isobutene and... | 04/13/1982 |
| 4230897 | Process for selectively hydrogenating a hydrocarbon cut containing at least one diolefinic hydrocarbon and at least one acetylenic hydrocarbon using a palladium catalyst with crystallites of at least 50 angstroms Process for selectively hydrogenating acetylenic hydrocarbons such as vinylacetylene contained in an unsaturated hydrocarbon fraction such as a C4 fraction also containing a diolefinic hydrocarbon such as butadiene, without substantially hydrog... | 10/28/1980 |
| 4203501 | Device for emitting acoustic waves in a liquid medium This device comprises two movable elements of rigid material tightly interconnected by means of a deformable membrane forming therewith a tight internal enclosure, means for varying abruptly the volume of said enclosure by successively moving the two elem... | 05/20/1980 |
