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Patent # Description
US-5,581,049 Expanding joint for an initially substantially planar member
An expanding joint is disclosed for increasing the size of an initially substantially planar member, upon stretching. The joint includes a discontinuous incision...
US-5,581,048 Corrosion resistant electromagnetic shielding gasket
A shielding gasket is disclosed which may be installed between a door panel and an enclosure containing electronic equipment therein, the shielding gasket...
US-5,581,047 Electromagnetic interference sheild
A blank cut and scored for forming an electromagnetic interference shield is disclosed. The blank includes a rectangular bottom section and has first, second,...
US-5,581,046 Hand-held firearm with recoil attenuation
The invention discloses a hand-held firearm with a barrel assembly (2, 18, 36, & 54) moving back and forth essentially in or opposite the direction the weapon is...
US-5,581,045 Method and integrated circuit for the flexible combination of four operators in sound synthesis
A four-operator sound synthesis integrated circuit comprises a first through a fourth sound synthesis operator, a first programmable multiplier connecting the...
US-5,581,044 Coating employed with laminated head of plastic sheet material and a synthetic fabric material
A head for a drum or similar musical instrument including a synthetic plastic sheet material laminated to a synthetic fabric material having a plurality of...
US-5,581,043 Overtone enhancing musical instrument
An acoustical instrument designed to promote and enhance the production of musical overtones is disclosed. The instrument is capable of reinforcing, and thereby...
US-5,581,042 Method for torque wrench non-contact angle measurement
A method of utilizing a non-contact velocity sensor is disclosed which involves a subpoint set delay and reset feature as a means for minimizing problems with...
US-5,581,041 Apparatus for measuring flow of granular particles in conduit
A blade device in a helix configuration suspended in a conduit means flowing full of granular materials such as crushed coal to rotate with the flow thus...
US-5,581,040 Multi-functional hydraulic grip
A hydraulic grip suitable for use in both tensile and compressive loading of a specimen comprises generally a main body and an outer housing to form a pair of...
US-5,581,039 Ceramic body and method and apparatus for detecting change thereof
To provide diagnosis of service life and maintenance requirements, a sintered ceramic body which in use is subjected to stress and undergoes change with time as...
US-5,581,038 Pressure measurement apparatus having a reverse mounted transducer and overpressure guard
A novel pressure measurement apparatus for measuring fluid pressures generated within a fluid passageway is disclosed. The apparatus includes a semiconductor...
US-5,581,037 Nondestructive evaluation of pipes and tubes using magnetostrictive sensors
A method and apparatus for the inspection of ferromagnetic and non-ferromagnetic pipes, tubes or other cylindrical shell structures utilizing the...
US-5,581,036 Bandwidth sampling technique for digital focusing in array imaging systems
The present invention-relates to an ultrasonic array imaging system for focusing ultrasonic signals which are reflected from an object to be imaged and received...
US-5,581,035 Micromechanical sensor with a guard band electrode
An electrostatically actuated micromechanical sensor having a guard band electrode for reducing the effect of transients associated with a dielectric substrate...
US-5,581,034 Convective accelerometer and inclinometer
A convective accelerometer and inclinometer includes two temperature sensing elements mounted within a sealed enclosure containing a gas. The application of heat...
US-5,581,033 Universal instrument protection box
The instant invention relates to a protection box to be installed on a measuring instrument assembly in a process plant. The box includes two identical box...
US-5,581,032 Angular velocity sensor device
In an angular velocity sensor device, a vibration isolation member, a sensor support plate on which a tuning fork unit functioning as a vibrating type angular...
US-5,581,031 Drum stick pistol grips
A drumstick attachment having a hollow core dimensioned and configured to receive a drumstick. Pistol-like grips having grooves for the drummer's fingers provide...
US-5,581,030 Double pocket drum mute
A double pocket drum mute having a structure which is made of three layers, namely an outer sheet (22), an inner sheet (24), and a padding sheet (20). The inner...
US-5,581,029 Measurement system for a pressure gage as well as a process for the fabrication of such a measurement system
In a measurement system for a pressure gage which has a bourdon tube spring as well as a spring support, the bourdon tube spring is made of a metallic material...
US-5,581,028 Fluid property sensors incorporating plated metal rings for improved packaging
A semiconductor flow sensor provides a self-aligning seal between the sensor and a manifold carrying the fluid being measured. The sensor includes a sensing...
US-5,581,027 Dual integral ballast flow sensor
A flow sensor package having dual porous integral restrictors and a substantial bend between an inlet and a passage for housing the flow sensor and connecting...
US-5,581,026 Flow meter
A flow meter for measuring a flow rate of fluid includes a body providing a main passage through which the fluid flows. A plurality of support elements connect...
US-5,581,025 Marine instrument
A through-hull speed sensor of the magnetized paddlewheel sensor type wherein a paddlewheel is rotatably supported in a cavity adjacent a magnetic sensing device...
US-5,581,024 Downhole depth correlation and computation apparatus and methods for combining multiple borehole measurements
The current invention is directed toward the use of a downhole computer and downhole storage within a measurement-while-drilling (MWD) downhole subassembly to...
US-5,581,023 Pressure transducer for monitoring a pneumatic tire
A pressure transducer for use with a pneumatic tire monitoring system includes a non-conductor resilient layer and a piezo-resistive/variably conductive layer...
US-5,581,022 Engine misfire detector
A system for determining the occurrence of a misfire in an internal combustion engine includes an oscillator, a phase detector coupled to receive an engine...
US-5,581,021 Method and apparatus for optimizing piezoelectric surface asperity detection sensor
Disclosed is a method and apparatus for sensing the vibrational response of a slider of predetermined dimensions during contact with one or more surface...
US-5,581,019 Gasket/insertable member and method for making and using same
An improved insertable member is provided suitable for use as a seal monitoring gasket. In one embodiment, the insertable member employs an embedded electrically...
US-5,581,018 Pneumatic plug and method for hydrostatic testing of bathtub plumbing
An inflatable pneumatic plug useful for expediting the hydrostatic testing of bathtub and water plumbing installations. The pneumatic plug has a semi-rigid...
US-5,581,017 Integrity test for porous structures using acoustic emission
A rapid, highly sensitive determination, in-situ, of the integrity and/or pore size distribution of a porous membrane structure (e.g. a pleated membrane filter...
US-5,581,016 Aircraft engine detonation indication system
A detonation detection system for internal combustion piston engines which senses pressure within each cylinder through a piezoelectric force transducers...
US-5,581,015 Devices and methods for measuring temperature and vapor levels in a gas
Devices relating to a psychrometer employing an infrared thermocouple aimed at a wet surface, and another infrared thermocouple aimed at a dry surface, are...
US-5,581,014 Method and apparatus for acoustic analysis of binary gas mixtures with continuous self-calibration
A method and apparatus for acoustic analysis of binary gas mixtures. A binary gas sample is drawn into a first chamber. A known reference gas is drawn into a...
US-5,581,013 Method and system for obtaining useful foundation information
A pile bearing capacity determination system which allows the pile driver operator to determine the bearing capacity of a pile while it is being driven without...
US-5,581,012 Dimensional measurement method and reference sample for carrying out the method
A method for the dimensional measurement of a piece to be checked is disclosed, wherein a comparison sample and a reference sample are employed, respectively of...
US-5,581,011 Aromatic ketones and processes for their preparation
The present invention relates to substantially pure piperidine derivative compounds of the formulae: ##STR1## wherein R.sub.1 is hydrogen or...
US-5,581,010 Semi-organic crystals for nonlinear optical devices
A nonlinear optical material includes a noncentrosymmetric crystal of an anionic boron complex salt containing a cation and at least one organic ligand...
US-5,581,009 Process for crystallization of L-phenylalanine monomethyl sulfate using added salt
A process for improving the yield of crystallization of L-phenylalanine monomethyl sulfate from an aqueous solution containing L-phenylalanine and monomethyl...
US-5,581,008 Branched organosilicon compounds and a method for their preparation
The present invention relates to branched silicon-bonded hydrogen endblocked organosilicon compounds containing silalkylene groups and to a method for the...
US-5,581,007 Process for preparing optically active allophenylnorstatin derivatives
A process for preparing an optically active (2S,3S)-allophenylnorstatin derivative (I) is disclosed, comprising asymmetrically hydrogenating a ...
US-5,581,006 Synthesis of 19-nor vitamin D compounds
A convergent synthesis of 19-nor-vitamin D compounds, specifically 19-nor-1.alpha.,25-dihydroxyvitamin D.sub.3, is disclosed. The synthesis can also readily be...
US-5,581,005 Method for manufacturing cobalt catalysts
A method for manufacturing cobalt complexes having the formula: wherein M ligands are selected from substituted and unsubstituted C.sub.1 -C.sub.30 carboxylic acids...
US-5,581,004 Preparation and use of (2-butene-1,4-diyl) magnesium complexes in organic synthesis
The magnesium complexes of cyclic hydrocarbons and conjugated dienes, such as 1,2-dimethylenecycloalkanes and 1,3-butadienes, are readily prepared in high yields...
US-5,581,003 Method for making soluble zirconium and hafnium organic acid complexes
Soluble zirconium and hafnium organic acid complexes are made by forming an aqueous mixture of a basic carbonate of either zirconium or hafnium and the organic...
US-5,581,002 Process for the production of 1-.alpha.-(carboxyalkyl)-testosterone
The present invention discloses a process for making 1-.alpha.-(carboxyalkyl)testosterone having the following formula: ##STR1## The process involves...
US-5,581,001 Branched esters
The present invention deals with the certain novel esters which are prepared by the reaction of an alpha methyl alcohol and a fatty acid. These materials are...
US-5,581,000 Sulfonic acid-substituted anthrahydroquinone alkylammonium salts
Hydrogen peroxide is produced by oxidizing alkylammonium salts of sulfonic acid-substituted anthrahydroquinones. As said salts are highly soluble in protic polar...
US-5,580,999 Alcohols
Novel alcohols of the formula ##STR1## wherein R.sup.a is azido or phthalimido, R.sup.4 is alkyl, cycloalkyl, cycloalkylalkyl, aryl or aralkyl, R.sup.7 and...
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