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Patent # Description
US-4,932,252 Method and device for testing an anti-skid braking system (ABS) of a motor vehicle
Method and device for testing an anti-skid braking system (ABS) of a motor vehicle, using a roller test bench with at least four rollers or pairs of rollers....
US-D308,515 Computer housing
US-4,930,253 Plant growing and handling method
A plant flat handling system for handling floatable plant flats employs a horizontally extending main channel which can be flooded from either a water tank or a...
US-4,922,073 Thick tube welder
A thick tube welder for welder together a tubular end fitting and a tube. The end fitting and the tube are placed in axial alignment within a welding head...
US-4,920,656 Compass assembly with dial biasing disk
A compass assembly comprising a base, a dial member received in a recessed portion of the base and rotatable relative the base about a dial member central...
US-4,919,816 Removal of acidic impurities in processes for solvent extraction of aromatics from nonaromatics
Corrosion of process equipment in a system for extraction of aromatic components from nonaromatic components by means of a selective solvent, for example...
US-4,918,249 Silicometallate molecular sieves and their use as catalysts in oxidation of alkanes
Silicometallates containing iron in the structural framework are employed as catalysts for the oxidation of hydrocarbons or oxygenated hydrocarbons, for example...
US-4,918,041 Catalyst for hydrocarbon conversion and conversion process utilizing the same
A sulfated calcined solid catalyst is provided which comprises (1) oxide or hydroxide or Group III or Group IV, e.g. zirconium, metal, (2) oxide or hydroxide or...
US-4,916,793 Straightening of unibody frames
An anchor assembly for use in straightening unibody frame rails comprises a weld plate having at least one internally threaded sleeve projecting from a face of...
US-4,916,101 Method of preparing heteropolyacid catalysts
Polyoxoanions are converted to the corresponding heteropolyacids by conversion to their tetrabutylammonium salt followed by pyrolysis.
US-4,910,683 Method and apparatus for fractional double buffering
A user, through the use of an input device, provides signals indicative of x,y and z coordinates to a host central processing unit (CPU). The x,y and z...
US-4,908,780 Anti-aliasing raster operations utilizing sub-pixel crossing information to control pixel shading
A method and apparatus for performing anti-aliasing of rendered lines, text and images displayed by a workstation on a video display. The anti-aliasing is...
US-4,907,176 Flag generation system
An engine analyzer includes an A/D converter for sampling analog data from an engine under test and developing digital data consisting of 11 magnitude bits and a...
US-4,907,174 Z-buffer allocated for window identification
Apparatus and methods for displaying two and three dimensional graphics within a plurality of windows on a display system. The display system includes a central...
US-4,906,672 Blowing agents for polyurethane foam
Improved methods are provided for incorporating carbon dioxide and carbon dioxide generating compounds into polyurethane foam forming compositions as blowing...
US-4,905,766 Adapter for plastic pipe
This invention relates to an adaptor for connecting a non-metallic pipe to a threaded metallic element, such as a sprinkler head, in leak-tight fluid ...
US-D306,456 Pocket calculator
US-D306,397 Caster for a chair
US-D306,288 Keyboard
US-4,903,220 Dual ported speed up memory in ROM location for engine analyzer
An IBM-compatible computer based engine analyzer includes a RAM memory in a ROM cartridge location. A data acquisition system operates substantially ...
US-4,903,219 Method of identifying flag bits
A technique for determining and resetting one or more flags in a digital word in memory in which the flags comprise added bits in known locations different from...
US-D306,199 Cover plate for a filter cartridge for a spa or swimming pool water filter
US-4,900,871 Hydrocarbon oxidations catalyzed by iron coordination complexes containing a halogenated ligand
Hydrocarbons, and particularly lower molecular weight alkanes and cycloalkanes, may readily be oxidized with air or O.sub.2 to form such products as alcohols,...
US-4,898,989 Alkane oxidation process
Alkanes are catalytically oxidized using site-specific framework substituted heteropolyacid or a polyoxoanion thereof.
US-4,895,987 Phosphonite-and phosphonite-promoted ruthenium - cobalt catalysts for the dealkoxyhydroxymethylation of acetals...
Ruthenium-cobalt- or cobalt-containing catalysts which have been promoted with phosphonites or phosphinites effectively catalyze the dealkoxyhydroxymethylation...
US-4,895,818 Phosphonite-and phosphinite-promoted ruthenium - cobalt catalysts for the dealkoxyhydroxymethylation of acetals...
Ruthenium cobalt- or cobalt-containing catalysts which have been promoted with phosphonites or phosphinites effectively catalyze the dealkoxyhydroxymethylation...
US-4,895,682 Hydrocarbon oxidations catalyzed by azide-activated metal coordination complexes
Hydrocarbons, and particularly lower molecular weight alkanes and cycloalkanes, may readily be oxidixed with air or O.sub.2 to form such products as alcohols,...
US-4,895,680 Hydrocarbon oxidations catalyzed by nitride-activated metal coordination complexes
Hydrocarbon, and particularly lower molecular weight alkanes and cycloalkanes, may readily be oxidized with air or O.sub.2 to form such products as alcohols,...
US-4,890,270 Method and apparatus for measuring the speed of an integrated circuit device
A circuit for detecting manufacturing deficiencies in semi-conductor devices and selecting marketable chips comprises a speed circuit to determine the speed at...
US-D305,134 Hand powered scooter
US-D304,881 Combined carrying bag and radio
US-4,884,266 Variable speed local area network
A local area network is disclosed including apparatus and methods for transmitting data between a plurality of data processing resources (agents) coupled to a...
US-4,884,198 Single cycle processor/cache interface
An improved interface between a processor and an external cache system, having particular application for use in high speed computer systems. A cache memory for...
US-D304,823 Computer housing
US-4,882,436 Semi-polar hyperdispersants for pigment bases
Quaternized oligourethanes, useful as dispersing agents in preparing high-solids pigment concentrates for use in manufacturing inks, especially inks intended for...
US-4,881,651 Rotatable organizer with integral pivot nub and peripheral reduced area contact nubs
A rotatable organizer includes a container having a circular flat bottom, a circumferential cylindrical side wall secured at the outer periphery of the flat...
US-4,881,353 Cubicle
A toilet cubicle having a pair of post engaging side panels bracketed to a rear wall and a top headrail engaging the side panels have doors rotatably joined in...
US-4,881,183 Method and apparatus for emission testing
A computerized emissions tester determines concentrations of HC, CO, and CO2 in exhaust emissions. An IR test bench assembly develops an analog voltage...
US-4,879,451 Laser cut video display terminal filter screen
A filter screen for a video display terminal is formed by ablating a sheet of plastic material with an excimer laser beam to produce desired apertures in the...
US-4,877,920 Process for removing arsine impurities in process streams
A process for removing arsenic contaminants from a hydrocarbon fluid by contacting the fluid with copper oxide supported on activated carbon.
US-4,875,311 Beam construction
A simulated beam construction comprises a rectangular elongated core member with several laterally arranged prongs or barbs. Wooden, laminated wooden or plastic...
US-4,872,916 Phosphate ester pigment dispersant
An aqueous pigment dispersion containing as the dispersing agent a phosphate ester salt having the general formula: ##STR1## wherein: R and R' are the same...
US-4,872,004 Plural source arbitration system
The plural source arbitration system relates generally to communications systems for linking peripheral devices to a computer. Specifically, the arbitration...
US-4,871,914 Low-cost radon detector
A low-cost radon detector using a solid state diode having a depletion layer disposed close enough to a test medium that alpha particles deposit their energy in...
US-4,870,139 Polyamide/acrylic graft copolymers
A water-dispersible graft copolymer of a polyamide and at least one acrylic monomer is prepared by reacting the polyamide with the acrylic monomer(s) in an...
US-D303,662 Cursor control
US-D303,592 Rack for records or the like
US-4,867,416 Portable hydraulic lift for large lamps and the like
A portable hydraulic lift is provided for supporting lamps and the like at selected vertical positions. The disclosed lift includes five concentrically...
US-4,860,251 Vertical blanking status flag indicator system
An improved display system which includes a central processing unit (CPU) coupled to a display utilizing vertical blanking intervals. A frame buffer memory is...
US-4,859,798 Oxidation of alkanes
Alkanes are oxidized in the liquid phase at relatively low temperatures using heteropolyacids or polyoxoanions promoted with azide or certain metals. Such azide...
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