U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"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

Newsletter  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.

 

Patents Published on 12/09/1986


See All Patents Issued In 1986


        5              
NumberTitleIssue Date
4627268Method for calibrating instruments for time interval measurements
A method and apparatus is presented for calibrating instruments for time interval measurements, pulse width measurements, and rise and fall time measurements. The preferred method comprises generating two coherent pulses using a linear passive device. The...
12/09/1986
4627269Method of, and apparatus for, detecting reducing gases in a gas mixture
Reducing gases can be detected in a gas mixture to be investigated, particularly in air, with high sensitivity and precision by means of a gas detector. The gas detector comprises a gas sensor which is arranged within a measuring chamber. The temperature ...
12/09/1986
4627270System for measuring the pore volume and permeability of very tight core plugs and method therefor
A system and method for measuring Klinkenberg permeability and pore volume of a tight core plug sample is provided wherein a pressure transducer is positioned between the sample cell and the manifold of the system....
12/09/1986
4627271Differential pressure capillary viscometer for measuring viscosity independent of flow rate and temperature fluctuations
A means for measuring either the intrinsic or inherent viscosity of a solute in solution with a solvent which is independent of flow rate and temperature fluctuations. The solution is passed through one capillary tube and the solvent through a second capi...
12/09/1986
4627272Viscometer
A viscometer (10) employs a tube (12) with a check valve (30) at one end and a ferromagnetic bobbin (16) disposed inside and freely movable with respect to it. A pair of coils (38 and 40) are alternately energized, causing the bobbin (16) to move against ...
12/09/1986
4627273Apparatus and method for determining the minimum miscibility pressure of a gas in a liquid
An apparatus and method for determining the minimum miscibility pressure of a gas in a liquid comprises injecting a gas bubble into a transparent tube containing the liquid at a fixed predetermined pressure and temperature and observing the bubble behavio...
12/09/1986
4627274Apparatus for testing stability of heavy oil
Electric heating means is arranged in the bottom portion of one case body, and an air bath tank and a sample heating tank, communicating with each other, are formed within this case body. The temperature of air in the air bath tank is maintained at a pred...
12/09/1986
4627275Engine deficiency indicator
An engine deficiency indicator includes a detector for detecting a pre-determined amount of angular rotation of an engine. The detector generates a first signal upon the start of one period of rotation of the engine which enables a counter for counting cl...
12/09/1986
4627276Method for measuring bit wear during drilling
A method for measuring the wear of milled tooth bits during oilwell drilling uses surface and subsurface wellsite sensors to determine averaged values of penetration rate, rotation speed and MWD (measurements-while-drilling) values of torque and weight-on...
12/09/1986
4627277Magnet selector or switch
A magnet switch or selector for selecting the functions of a multiple function electronic circuit device in a housing. A plurality of reed switches are incorporated into the electronic circuit device for switching on and off respectively the multiple func...
12/09/1986
4627278Illuminated wind sock
An illuminated wind sock apparatus comprising a wind sock unit (11) provided with at least one interior light source (19, 21) that transmits light to a plurality of fiber optic members (22) disposed on the exterior of the wind sock unit (11)....
12/09/1986
4627279Direct-heated gas-flow measuring apparatus
A direct-heated gas-flow measuring apparatus for a passage including a plurality of film resistors, disposed within the passage, for generating heat and measuring the temperature thereof, and a feedback control circuit for controlling the heat generated b...
12/09/1986
4627280Inductance liquid level meter
The present invention relates to a liquid level meter, comprising a coil having a core, a float which is provided at the external circumference of coil so that it can move in the longitudinal direction along the same core and comprises a conductor ring, a...
12/09/1986
4627281Tank gaging system
A high-accuracy system for gaging liquid height in storage tanks. A pair of standpipes are arranged to be pumped to several accurately predetermined liquid levels to enable zero and sensitivity calibration of a differential-pressure transducer which norma...
12/09/1986
4627282Fluid level sensor
A fluid level sensor responsive to the fluid pressure at the bottom of a tank for indicating fluid level including a fluid pressure amplifier that provides an amplified fluid pressure to a gage which is calibrated to provide a measure of fluid level....
12/09/1986
4627283Fuel level detector for automobile fuel tank
A fuel level detector for an automobile fuel tank comprises a strut vertically provided within a fuel tank, a float slidably fitted around the strut and having a permanent magnet therein, a plurality of magnetic induction type reed switches slantedly disp...
12/09/1986
4627284Ultraviolet absorption hygrometer
An ultraviolet absorption hygrometer is provided including a source of pulsed ultraviolet radiation for providing radiation in a first wavelength region where water absorbs significantly and in a second proximate wavelength region where water absorbs weak...
12/09/1986
4627285Pointer for liquid filled gauges
An improved liquid filled gauge for measuring the temperature or pressure of a fluid. Gauge temperature or pressure readings are indicated by a pointer configured to produce substantial resistance to motion during pointer rotation. The preferred embodimen...
12/09/1986
4627286Pressure or pressure difference measuring instrument
A pressure or pressure difference measuring instrument comprising a pot-like housing having an electronic circuit part and a sensor connected to the bottom of the housing through an opening. To be able in such a measuring instrument to arrange the pot-lik...
12/09/1986
4627287Light-resistance tester for maintaining uniform temperature at surface of sample
A light resistance tester for maintaining a uniform temperature of the surface of a sample being tested has a testing chamber, a light source mounted in the center of the testing chamber, an annular sample mounting frame positioned around the light source...
12/09/1986
4627288Bearing unloading mechanism for disc clamping unit
A bearing unloading mechanism for a disc clamping unit utilized in rigid disc certifiers or testers comprises a hollow spindle (12) containing a pulling rod (20) which slides in the spindle. The upper end of the pulling rod carries a clamping element (26)...
12/09/1986
4627289Method for the ultrasonic flaw detection of an electric welded pipe
An ultrasonic flaw detection method in which defects in the weld zone of an electric resistance welded steel pipe are detected by projecting an ultrasonic wave (a) having a frequency range of from 25 MHz to 500 MHz at an angle of incidence of from 0° to ...
12/09/1986
4627290Method and apparatus for detecting acoustic homogeneity of object
A pulsating sound wave beam is transmitted into an object using an array-type ultrasonic wave transducer which consists of a plurality of elements; the reflected sound waves are received using said transducer while electronically focusing the reflected so...
12/09/1986
4627291Position sensing apparatus for an object to be measured
A position sensing apparatus includes an ultrasonic wave transmit-receive element for transmitting and receiving ultrasonic waves to and from an object whose position is to be sensed and a manipulator for changing the relative positions between the object...
12/09/1986
4627292AC transducers, methods and systems
A position and motion transducer is described comprising means for providing a permanent magnetic field adjacent an appropriately oriented toroidal transformer, which can be either an isolation transformer or an autotransformer. The means for providing a ...
12/09/1986
4627293Apparatus for tension testing of lumber
A lumber testing apparatus incorporates opposed wedges to simultaneously exert tension and clamp forces on boards being tested. The inclined wedge surfaces utilize bearing materials and wedge angles selected to match the required clamp forces to tension f...
12/09/1986
4627294Pulsed eddy flow meter
A flow meter comprising a pulsed eddy generator disposed at an upstream section in the flow passage and an eddy sensor disposed at a downstream section, wherein the pulsed eddy generator is programmed to be activated automatically following a predetermine...
12/09/1986
4627295Vortex flow meter
A vortex flow meter includes a bluff body which sheds a vortex train when a fluid flowing in a conduit moves therepast, the vortex train developing a delicate pressure variation in proportion to a flow rate of the fluid. The flow meter detects the flow ra...
12/09/1986
4627296Shunt calibration system for a transducer mounted on a rotating member
A rotary transformer transducer system includes a rotatable shaft having a rotor and a transducer each mounted thereon, and a stationary member including a stator, with the rotor and stator coupling electrical energy therebetween without physical contact....
12/09/1986
4627297Apparatus for measuring the magnitude of a load
An apparatus for measuring the magnitude of a load connected to a drive shaft includes a pulse motor for intermittently driving the drive shaft into rotation in response to a motor drive signal of a changing level. A torsion bar rotatively displacable in ...
12/09/1986
4627298Torque sensor of the noncontact type
In a torque sensor of a noncontact type for sensing a rotary torque applied to a shaft, a magnetic ribbon of a film shape formed of a magnetic material and applied in advance with an induced magnetic anisotropy in the direction of an angle θ along the ci...
12/09/1986
4627299Engine starter gearing
An engine starter for engagement with the starting gear of an engine to be started. The engine starter has a power shaft rotatably driving a secondary driving clutch member through mutually engageable straight splines. The secondary driving clutch member ...
12/09/1986
4627300Positioning actuator for six-high roll stand
A positioning actuator for use between a working-roll journal block and a roll-stand frame has a housing, a worm shaft rotatable in the housing about a main axis and formed with two axially offset worms, and respective worm wheels meshing with the worms a...
12/09/1986
4627301Change speed transmission
A transmission comprises gear trains which provide increasing speed ratios and two clutches which are operable independently to provide alternative paths through the gear trains between an input and an output. The gear trains provide alternate ratios driv...
12/09/1986
4627302Countershaft transmission
A countershaft transmission provides two forward and two reverse speeds using an input shaft, an output shaft, an intermediate shaft, four rotating clutch assemblies, and seven gears. The directional clutch assemblies are mounted in back-to-back relation ...
12/09/1986
4627303Variable resistance device
A worm gear-actuated variable resistance device including a clutch structure, having a worm gear actuated by a worm screw. The worm gear has a toothless sector, and the teeth are engagable by the thread of the screw to rotate the gear to a position in whi...
12/09/1986
4627304Linkage anti-rattle device and arrangement
A plurality of interconnected linkages are shown with a resilient clip-like member operatively connected to a first of the linkages and resiliently engaging another of the linkages so as to cause an abutment carried by the first linkage to be held in cont...
12/09/1986
4627305Bicycle speed change lever
A bicycle speed change lever comprising: a stationary support spindle having an internally threaded axial hole and fixed at its one end to a bicycle frame tube, a lever handle rotatably mounted at its hole end portion on the support spindle, a plurality o...
12/09/1986
4627306Energy absorbing steering column for motor vehicles
An energy absorbing steering column for a motor vehicle includes a vehicle body, an upper steering column tube, a lower steering column tube telescopically engaged with the upper steering column tube, a steering shaft rotatably suspended within the steeri...
12/09/1986
4627307Fiber-reinforced plastic core material for steering wheels
A core material for steering wheels, comprising a boss equipped with sleeves in a unitary structure, each of which sleeves has a slit in the axial direction thereof, said sleeves further being packed with superposed fiber strands; a ring portion; and spok...
12/09/1986
        5              
 
Sign InRegister
Username  
Password   
forgot password?