"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 5048322 | Heated column inlet gas chromatography method and apparatus The invention describes a large volume on-column gas chromatographic method for analyzing trace levels of high molecular weight and polar compounds in a sample and an apparatus for performing the method. A column inlet coupled to an analytical column is h... | 09/17/1991 |
| 5048323 | Fluid metering A gas flow correction sensor for producing an output signal proportional to the ratio between line pressure and line temperature for gas flowing in a line, for use in correcting the output of a volumetric flow meter connected in the line, comprises a seal... | 09/17/1991 |
| 5048324 | Aboveground tank leak detection system and method An apparatus and method for detecting fluid leaks from aboveground fluid storage tanks is disclosed. The invention consists of radially disposing a plurality sample probes in the subsurface soil area underneath the aboveground tank. Each of the plurality ... | 09/17/1991 |
| 5048325 | Measuring cell The invention relates to a measuring cell (1) designed for measuring the contents of the components present in slurries which are in a flowing motion, the measuring cell comprising an inlet pipe (2) and an outlet pipe (9) for the slurry and a measuring wi... | 09/17/1991 |
| 5048326 | Surface roughness measuring instrument A surface roughness measuring instrument is provided with a rotary drive mechanism configured such that two rollers support a sphere at three points, yet the driving torque applied to the sphere at those three points all give an equal tangential velocity.... | 09/17/1991 |
| 5048327 | Mass air flow meter Improvements in a mass air flow meter for internal combustion engines are disclosed which comprise structure for improving the flow dynamics of the air flow through the sampling path including expansion of the dynamic range and increase of the signal to n... | 09/17/1991 |
| 5048328 | Method of determining the porosity and irreducible water saturation of a coal cleat system The irreducible water saturation profile across the length of a core sample of coal is determined from four series of X-ray attenuation measurements made over the length of the core sample. The X-ray attenuation measurements are made while the core sample... | 09/17/1991 |
| 5048329 | Hydraulic valve test device Apparatus for testing a solenoid-actuated, hydraulic valve under actual operating conditions in a closed hydraulic system includes two pressure gauges to monitor valve switching pressure as well as electrical control switches and a test lead to power the ... | 09/17/1991 |
| 5048330 | Materials testing machine A materials testing machine for testing equipment used for lifting or jacking up of objects. The machine has a frame with a generally horizontal arm extending outwardly therefrom. A hydraulic cylinder assembly is positioned along the horizontal arm and is... | 09/17/1991 |
| 5048331 | Continuous rainwater monitoring system A continuous rainwater monitoring device for effecting automatic chemical analysis of the rainwater. The device comprises, in addition to a funnel-shaped receiver-container, a rain gauge, a measurement and analysis means, and an automatic recorder, the fo... | 09/17/1991 |
| 5048332 | Flow meter for measuring fluid flow with multiple temperature sensors A part of a tube, through which a fluid passes, is cooled by means of an electronic cooling element and a flow rate of the fluid is measured on the basis of a temperature of a surface of the tube cooled. Not only can the flow rate of the liquid flowing th... | 09/17/1991 |
| 5048333 | Material level checking apparatus for use in a rotating member An apparatus and method for determining the level of material within a rotating cylindrical vessel are disclosed in which a rigid member means on the interior of the rotating vessel is fixedly secured to a rod having a longitudinal axis parallel to the ro... | 09/17/1991 |
| 5048334 | Method and apparatus for subterranean liquid level measurement A method and an apparatus for determining the thickness of a layer of a first liquid above an interface formed by the first liquid and the second liquid underlying the first liquid in a subterranean formation. The apparatus includes an elongated metal rod... | 09/17/1991 |
| 5048335 | Capacitance-type material level indicator A system for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be responsive to variations in capacitance as a functio... | 09/17/1991 |
| 5048336 | Moisture-sensitive device A moisture-sensitive device comprising a substrate such as silicon substrate, a pair of belt-like heating elements extending over recesses formed in the substrate, the heating elements being composed of a resistive film of platinum or nickel and a heat-re... | 09/17/1991 |
| 5048337 | Hypsometer having controlled heating, particularly for use in metrological radio-sondes The hypsometer comprises an open boiling vessel consisting of a vessel flask containing the measuring fluid and of a vessel neck attached to said vessel. An electrical heating resistor plunges into said measuring fluid. A temperature sensor measures the b... | 09/17/1991 |
| 5048338 | Electronic bobweight eliminator The present invention provides for a method of generating an electronic bobweight signal used to offset an unbalance signal before the unbalance signal is received at the input portion of the electronic circuitry of the unbalance detection system. The ele... | 09/17/1991 |
| 5048339 | Acceleration pick-up device The acceleration pick-up device is provided with an elastic member to which an inert body is attached. Upon occurrence of an accelerative force, the elastic member is deformed. For measuring the absolute value of the acceleration, a calibration can be per... | 09/17/1991 |
| 5048340 | Semi-automatic system for ultrasonic measurement of texture A means and method for ultrasonic measurement of texture non-destructively and efficiently. Texture characteristics are derived by transmitting ultrasound energy into the material, measuring the time it takes to be received by ultrasound receiving means, ... | 09/17/1991 |
| 5048341 | Container wall measuring apparatus and method A round open end container is supported and held on a turntable by a chuck. The edge of the container is guided and supported by rollers on roller heads mounted on brackets of stanchions positioned on opposite sides of the container. The brackets are mova... | 09/17/1991 |
| 5048342 | Motor vehicle constraining apparatus, particularly suitable for vehicle running simulation benches The apparatus comprises three rigid elements joined articulatedly together by constraint means such as to allow a first articulated element to oscillate with respect to a second element about a first substantially fixed axis of virtual oscillation, and to... | 09/17/1991 |
| 5048343 | Temperature-compensated strain-gauge amplifier A temperature compensated strain gauge amplifier derives compensating signals for offset and gauge errors of bridge transducers from a single temperature sensing element. The amplifier is inexpensive to construct, provides a high degree of voltage lineari... | 09/17/1991 |
| 5048344 | Borehole strain monitor for soft rock A borehole strain monitor for soft rock consisting of a sensing unit, an installation/retrieval provision and a read-out unit. The sensing unit has a U-shaped yoke and is fitted with a vibrating wire transducer. A magnetically coupled variable frequency o... | 09/17/1991 |
| 5048345 | Method of determining positions of beads A method of determining the positions of beads, capable of determining appropriate positions easily. The method includes the steps of obtaining a buckling waveform on the member without any bead; analyzing the obtained buckling waveform to determine conca... | 09/17/1991 |
| 5048346 | Method of estimating the thermal stress of a heat-resistant member by testing a model of the member made of a different material A method of estimating a thermal stress of a heat-resistant member, part or the whole of which is to be heated to a high temperature, comprising heating a model formed by a high-thermal expansion material and having a shape similar to that of the heat-res... | 09/17/1991 |
| 5048347 | Method for testing corrugated medium The invention involves a method for testing corrugated materials, in particular, boxboard. The test involves securing a sample horizontally between jaws having a mating corrugated gripping surface profile.... | 09/17/1991 |
| 5048348 | Fluid flow volumetric determination apparatus and method A system and method for obtaining a rapid determination of the volumetric flow rate of a multi-phase fluid stream comprised of crude oil, water and gas. The gaseous component of the stream is first segregated to allow a measurement of the volumetric relat... | 09/17/1991 |
| 5048349 | Coriolis-type mass flow meter comprising at least two straight parallel vibrating tubes A coriolis-type mass flow meter is provided for use directly in a flow line. The meter has at least two straight flow tubes that have fluid flowing therethrough mounted with parallel axes. The flow tubes are vibrated in a direction normal to the flow dire... | 09/17/1991 |
| 5048350 | Electromagnetic driver and sensor A shielded electromechanical device for use in a Coriolis type mass flowmeter for interconverting mechanical energy and electrical energy has a coil assembly connected to its distal end, and a magnetic assembly connected to its proximal end. The magnetic ... | 09/17/1991 |
| 5048351 | Mass flow sensor A coriolis-type mass flow sensor suitable for aerospace use comprises a tuning fork which is immersed in the fluid whose mass flow is to be sensed, such that its tines extend across (i.e. perpendicular to) the direction of flow of the fluid. The whole tun... | 09/17/1991 |
| 5048352 | Racquet string tension measuring device A measuring device for measuring the degree of tension of stringing in a racquet for tennis, squash etc. where string deflecting force and string deflection in response to the force are measured. The useful or real efficiency of a specific racquet can the... | 09/17/1991 |
| 5048353 | Method and apparatus for roll profile measurement A pressure sensitive device, such as a piezoelectric strip or plurality of piezoelectric crystals, is or are arrayed along the surface of a roll, preferably in a spiral pattern, extending for one revolution of the roll which is nipped with another roll. T... | 09/17/1991 |
| 5048354 | Device for sampling a circulating fluid A device is provided for sampling the contents of a pressurized circulating fluid system of a machine. The device is incorporated in a parallel fluid circuit and comprises a housing with an inlet to, and outlet from, a cavity. A filter is received within ... | 09/17/1991 |
| 5048355 | Engine starter with a front bracket provided with a drainage structure A starter for an automotive engine wherein the front bracket 9 forming part of the housing of the starter is provided with first and second drainage port 12, 16. An electromagnetic switch a of the starter is situated substantially horizontally, alongside ... | 09/17/1991 |
| 5048356 | Wobble device A wobble device is provided including a circular platform, a structure for pivoting the platform to achieve a wobbling movement, a shaft transverse to and positioned in a center of the platform, a moveable carriage rotatably attached through an arm to the... | 09/17/1991 |
| 5048357 | Translation/rotation conversion apparatus Translation/rotation conversion apparatus includes a rotatable follower shaft having an oval follower slant mounted thereon at an oblique angle with respect thereto. A rotatable drive shaft is disposed parallel to the follower shaft and has an oval drive ... | 09/17/1991 |
| 5048358 | Rotary phased radial thrust variable drive transmission A rotary phased radial thrust variable drive transmission which is lcoated between an input driving member, such as the pedal-driven sprocket of a bicycle, and an output driven member, such as the hub of a bicycle wheel which are mounted for relative rota... | 09/17/1991 |
| 5048359 | Toroidal continuously variable transmission A toroidal continuously variable transmission, comprises three circumferentially-spaced friction rollers disposed between and in driving contact with input and output toric discs, and roller carriers rotatably supporting the rollers, repectively. Swing li... | 09/17/1991 |
| 5048360 | C-axle gearing A gearing system for a lathe is shiftable from a first position, in which conical gear wheels (16, 25, 26, 36) engage each other with play, to a second position, in which the wheels engage each other without play. Reduced wear is achieved in the first pos... | 09/17/1991 |
| 5048361 | Device for keeping the spatial attitude of a member, constrained to a swinging support, with respect to a fixed element The device comprises an arm consisting of a number of consecutive segments fixed with one of its ends, to a first pivot protruding from a structure and made revolving so to bring about the oscillation of the arm, with a member supported in revolving mount... | 09/17/1991 |