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4851262 |
Method of making carbide, nitride and boride powders
A method of making metal carbide, nitride, or boride powders and mixtures thereof by direct reduction of metal compounds comprises (a) forming a reactant mixture, (b) heating the reactant mixture...
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4825318 |
Compound read/write element for rigid magnetic disk files
An inductive vertical or horizontal read/write head element for use in rigid magnetic disk files. The element is comprised of at least three spaced apart poles, each of said poles having a flux...
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4812826 |
Thermal sensor for detection of railroad bearing failures
A thermal sensor composed of a standard bolt which has been modified to embody a temperature sensing element and placed into a bearing assembly of a train. This element contains a heat-sensitive...
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4807183 |
Programmable interconnection chip for computer system functional modules
The interconnection chip of the present invention is a custom chip which is designed to serve as an efficient link between system functional modules, such as arithmetic units, register files and...
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4800457 |
Magnetoresistive sensor element
A magnetoresistive sensor which includes an element having a first layer that exhibits a magnetoresistive response, a second layer that magnetically biases the first layer and is in contact...
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4774836 |
Detector for dry deposition of atmospheric contaminants
A detector for dry deposition of atmospheric contaminants comprised of a surrogate surface upon which the contaminants are deposited from the atmosphere; an airfoil-type surface circumferentially...
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4767708 |
Enzyme amplification and purification
Restriction enzymes are used to remove from DNA a complete and undamaged structural gene coding region for the expression of DNA polymerase I (polA) without the gene's natural promoter or with only...
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4667877 |
Multi-orifice impulsed spray generator
A spray generator comprises a reservoir with a piezoelectric crystal affixed to its bottom surface and vertical tubes opening out of its top surface, each tube having an orifice at its tip. Spray...
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4621911 |
Standing wave luminescence microscopy
An optical microscope and a method are described wherein a luminescent specimen is located in, and illuminated by, a nodal standing wave field. Luminescence (fluorescence or phosphorescence) is...
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4579380 |
Servo robot gripper
A light weight servo controlled robot gripper is disclosed. A plastic body houses one or more threaded drive shafts which are powered by a direct current motor. Attached to the shafts are finger...
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4563954 |
Four-wheeled adjustable vehicle
A motor driven vehicle for traversing the interior of a pipe or conduit accommodates itself to variations in the interior contour of the pipe and automatically positions itself on the longest axis...
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4554834 |
Acoustic sensor and method of using same for determining the position of a tool relative to a workpiece
An acoustic sensor and method of using same for determining the position of a tool from a workpiece are disclosed in which a piezoelectric transducer having a curved surface emits a sound wave...
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4526106 |
Three-wheeled adjustable vehicle
A motor driven vehicle for traversing the interior of a pipe or conduit comprises a pair of arms pivoted to each other at one pair of ends, a drive wheel the axle of which may coincide with the...
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4493048 |
Systolic array apparatuses for matrix computations
A systolic array system of inner product step processors is provided in the form of a mesh connected network which rhythmically compute and pass data through the system. Each processor in the...
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4485472 |
Testable interface circuit
The interface circuit is intended to be connected between a module terminal and a module itself and provides means for stimulating and sensing signals between the module and its terminal. The...
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4445965 |
Method for making thin film cadmium telluride and related semiconductors for solar cells
A thin cadmium-telluride semiconductor film for use in solar cells is grown epitaxially on a second semiconductor film, typically tellurium, which may be epitaxial on a substrate semiconductor,...
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4425818 |
Robotic manipulator
A robotic manipulator includes a plurality of segments connected by joints between a fixed base and the distal end of the arm. At least one of the joints comprises a servomotor having a stator and...
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4137516 |
Grinding wheel crack detector
A grinding wheel is provided around the inside of its hole with a plurality of turns of an electrical conductor weaker in tension than the material of the wheel, the ends of which are brought out...
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4087840 |
Method and apparatus for magnetically recording and reproducing physiological information
Disclosed are a method and an apparatus for magnetically recording and reproducing physiological information such as in an electrocardiogram. The ECG signal is pulse width modulated (PWM), and the...
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4083189 |
Open cycle method and apparatus for generating energy from ocean thermal gradients
Power is generated by subjecting a body of water in an evacuated chamber alternately to pressure corresponding to the vapor pressure of water at the surface of a body of water, such as tropical sea...
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4074471 |
Process for nucleating diamonds
The specification discloses nucleating diamonds in the absence of an external container. Nickel and graphite are subjected to high temperature and pressure, e.g., by a grinding process, sufficient...
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4073214 |
Shave forming of wire
Wire is produced from wire rod by moving the rod lengthwise through first and second cutting tools, the first of which gouges out continuous chips from the rod surface, leaving lands between the...
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4026116 |
Mine roof supporting
A roof pin-or-bolt setting machine which applies sonic energy to drive bolts which may be of non-circular section or helical into the roof of a coal mine. The energy is supplied by a bar which is...
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3995160 |
Method and apparatus for obtaining electrical power from sea water
A method and apparatus for producing electricity utilizing a foam formed from ocean water at ambient temperatures. The method and apparatus utilize the enthalpy released by a rising foam to...
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3993533 |
Method for making semiconductors for solar cells
The invention relates to a method for producing a desired thin semiconductor film for use in solar cells. The desired semiconductor is grown epitaxially on a second semiconductor film which may be...
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3877180 |
Drive systems for a grinding wheel
A system for driving a grinding wheel and urging it against a work piece employs two hydraulic systems linked together. One system drives the grinding wheel and applies a torque to it while...
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3805515 |
MODULARIZED SEA POWER ELECTRICAL GENERATOR PLANT
An electrical generating plant utilizing temperature differentials (thermoclines) between various levels of the ocean having modularized boiler units, condenser units, and engine units which are...
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3608543 |
PHYSIOLOGICAL IMPEDANCE-MEASURING APPARATUS
In a physiological impedance-measuring apparatus, the combination comprising a pair of electrodes for spaced application to predetermined locations of the anatomy, an additional electrode spacedly...
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