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Patent # Description
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...
US-4,857,768 Triple rail logic gate
A multi-input logic gate is disclosed having particular application for use as an AND or OR gate in a digital circuit. The OR gate of the present invention...
US-4,856,455 Apparatus for holding electrical or electronic components during the application of solder
A carrier for dual-in-line packages to be wave soldered, comprises a frame with tracks into which the packages can be slid. The tracks are defined by aligned...
US-4,855,935 Method and apparatus for rendering vectors using bresenham parameters
An adaptive forward differencing apparatus wherein, when rendering curves, calculated x, y values are increased or decreased in order to create values which...
US-4,855,485 Process for production of cinnamates
In the process of preparing esters of cinnamic acid by reacting a styrene compound with carbon monoxide, oxygen, and an aliphatic alcohol in the presence of a...
US-4,854,969 Lithographic fountain solutions
Lithographic fountain solutions containing water, one or more nonionic surfactants having an HLB in the range of 1 to 8 and one or more hydrotropes to maintain...
US-D302,512 Sod plugger
US-4,848,144 Method of predicting the torque and drag in directional wells
A method is provided for generating an improved torque-drag model for at least the collar portion of the drill string in a directional oil or gas well. The...
US-4,843,561 Apparatus for locating and manipulating agricultural products
Apparatus for locating and manipulating agricultural products such as fruits and vegetables that emit or reflect distinctive radiation in a predetermined...
US-4,834,135 Pressure control valve
Two pressure control valves have most components in common. One valve is a direct-acting sequence valve and the other a vented counterbalance valve with pilot...
US-4,828,432 Apparatus for forming a continuous plastic sheet
Apparatus for lining an irrigation canal with a sheet of fiber-reinforced plastic includes structure for depositing a layer of resin and fiber on a web of...
US-4,827,023 Process for the selective formation of dialkyl succinates
The invention discloses an improvement to the selective production of dialkyl succinates by the known process of oxidative carbonylation of an olefin with carbon...
US-4,826,882 Open celled polyurethane foams
Improved, flexible, open celled polyurethane foams are described. The foams are formed in situ from the reaction of a polyisocyanate, a conventional polyester...
US-D300,974 Lid for a refuse container
US-D300,841 One-man water sled
US-D300,840 Two-man water sled
US-4,819,336 Method of determining the orientation of a surveying instrument in a borehole
For the purposes of determining the orientation of a surveying instrument in a borehole, while compensating for the effects of perturbing magnetic fields...
US-4,818,491 Suntanning gauge
A suntanning gauge is provided having a plurality of UV-light absorbing lenses of varying thicknesses affixed to a convenient-to-carry base. Under each lens is a...
US-4,810,105 Bearing sleeves
In order to support a mud-driven impeller of a down-hole turbogenerator in such a manner as to provide long bearing service life in the hostile conditions...
US-D300,051 Three-man water sled
US-4,805,690 Cooling roller
A cooling roller of a cooling machine for continuously and quickly cooling a high temperature sheet. The cooling roller comprises a rotary shaft, and a...
US-4,803,621 Memory access system
A memory architecture having particular application for use in computer systems employing virtual memory techniques. A processor provides row and column...
US-4,803,187 Alkane oxidation catalysts
Heteropolyacids or polyoxoanions promoted with azide, such as K.sub.6 PW.sub.11 VO.sub.40 N.sub.3, useful in the liquid phase oxidation of alkanes.
US-4,802,150 Mud pressure control system with magnetic torque transfer
A down-hole signal generator for a mud-pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud passing along a drill string,...
US-4,796,158 Apparatus for holding electrical or electronic components during the application of solder
A carrier for holding SOIC packages during the application of solder to their leads, the carrier including a frame provided with an end plate (17) with mounting...
US-4,795,979 Method and apparatus for determining cylinder #1 power firing event in wasted spark ignition systems
A method of determining the cylinder #1 power firing event in a wasted spark ignition system comprises developing a first signal comprising the integration of...
US-4,794,336 Apparatus for surveying a borehole comprising a magnetic measurement probe to be moved within a drill pipe to a...
A single-shot or multi-shot measurement probe incorporates a magnetic field sensor for sensing the earth's magnetic field, a processing unit for determining from...
US-4,793,863 High strength pigments for printing inks
Organic pigments especially suitable in the manufacture of printing inks. The pigments are prepared with relatively high concentrations of resins or rosins which...
US-4,793,096 Plant growing and handling system
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-4,788,597 Removable conforming video display terminal filter
A removable conforming video display terminal filter is disclosed. The combination of a filter element and a filter bezel is adapted to be added to a video...
US-4,787,743 Apparatus for measuring the radius of curvature
A plurality of light sources are caused to impinge in predetermined directions onto an optical system to be inspected. The reflected beams from the optical...
US-4,786,163 Auto-keratometer
An auto-keratometer attached to an operating microscope to measure the refraction and astigmatic condition of the cornea comprises a cornea irradiating light...
US-4,784,582 Fluid dispensing pump
A pneumatically operated pump for dispensing controlled shots of paste material includes a disposal paste syringe tube having a ferrule with an axial dispensing...
US-D298,345 Moveable figures toy
US-4,779,249 Immersible and disposable decorative wristwatch
An immersible and disposable decorative wristwatch includes at least one watch strap that can be selectively joined at its ends and fitted over the wearer's...
US-4,777,485 Method and apparatus for DMA window display
The present invention discloses apparatus and methods for direct memory access (DMA) having particular application for use in displaying digital images in an...
US-4,775,447 Process for the production of 2,2-dimethoxypropane
The process for the acid-catalyzed reaction of acetone with methanol to form 2,2-dimethoxypropane may be significantly improved if a stoichiometric ratio of...
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