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Patent # Description
US-4,581,834 Animal tag with locking insert
A locking insert for a two-component animal ear tag, such as an identification tag or an insecticide tag which uses a flexible, resilient plastic for insecticide...
US-4,580,186 Grounding and ground fault detection circuits
In an AC electric power system including a voltage source having a live conductor and a neutral, a grounding and ground fault detection circuit connected between...
US-4,576,400 Riser repair assembly for underground irrigation systems
A repair assembly for broken or leaking risers in underground irrigation systems is provided. The repair assembly is adapted to be inserted into a hole through...
US-4,575,228 Illumination apparatus for copying machines
The disclosure describes an illumination apparatus for a xeroxgraphic copy machine which produces a copy of an original document. The illumination apparatus...
US-4,574,539 Ground anchor with scoop channel discharging to groove forming ridge
A plate-like ground or earth anchor has a scoop-like channel formed in the leading end thereof, and an open topped socket formed in the trailing end thereof,...
US-4,572,083 Combustion gas cleaning system
A combustion gas cleaning system includes a transferring portion, a treating portion, an impurity collecting portion, an exhaust portion and a liquid purifying...
US-4,569,665 Play building element
A building element for use in constructing a play structure with similarly shaped elements is disclosed. The building element has a rectangular base provided...
US-4,569,497 Meter leveling saddle
A mounting for adjustably securing a meter to a pipe. The preferred embodiment of the mounting includes a one-piece, unitary saddle member, leveling member, and...
US-4,567,944 Retrievable straddle packer
An improved retrievable compression set straddle packer assembly for use in oil and gas wells. The straddle packer assembly comprises an upper hydraulic slip...
US-4,566,527 Isothermal heat pipe system
An isothermal heat pipe system for transferring heat from a primary fluid, such as geothermal water or steam, municipal water system, solar heated water, or the...
US-4,565,009 Sighting apparatus
Sighting apparatus includes a support portion, a connecting portion, a leveling portion and an aligning portion. The support portion includes securing mechanism...
US-D282,247 Fluid level monitor
US-4,564,909 Error sensing system for vessels with absolute zero referencing
An error sensing system for use in marine autopilot systems of the type having a photographic film compass disk aligned with the direction North and sensing...
US-4,560,538 Curing and leaching process for metal ores
The process for recovering metal values from mineral ores containing small amounts of metal, which comprises specific curing and conditioning steps followed by...
US-4,558,176 Computer systems to inhibit unauthorized copying, unauthorized usage, and automated cracking of protected software
A method and apparatus are provided for inhibiting unauthorized copying, unauthorized usage and automated cracking of proprietary software used in computer...
US-4,557,910 Production of soda ash from nahcolite
Soda ash is prepared from dry-mined nahcolite ore by partially calcining the ore, dissolving the ore in aqueous solution, separating the resultant solution from...
US-4,557,759 Iodine leach for the dissolution of gold
A process for the hydrometallurgical recovery of gold from materials containing gold comprising leaching the materials with a lixiviant containing iodine. To a...
US-4,555,391 Dry injection flue gas desulfurization process
YUtilization of a soda-type dry sorbent in a dry injection flue gas desulfurization process is increased, without sacrifice in the SO.sub.2 removal efficiency,...
US-4,553,358 Post anchor
A ground anchor for channel posts has an angle iron leg driven into the ground with a creased upright fin shroud strip or strap embracing the apex or corner of...
US-4,552,061 Trash compactor system
A trash compactor system which includes a trash compactor unit, a compaction receptacle and a trash deposit door disposed above the receptacle to enable trash to...
US-4,550,804 Climbing assist apparatus having controlled descent and escape mechanism
A climbing assist apparatus for oil derricks and the like comprises a cable which is attached to the worker and is trained over a sheave at the crown portion of...
US-4,546,703 Charge placement device
A pre-packaged explosive charge of the type made up of modules having a threaded male coupling end and a threaded female coupling end is loaded into a bore hole...
US-4,544,293 Printer apparatus and cutting mechanism
A printer apparatus including a printhead (14) for printing on a data carrier (20), a printhead carrier (15) for moving the printhead along a path, a cutter...
US-4,544,035 Apparatus and method for use in detonating a pipe-conveyed perforating gun
An apparatus is provided for use in detonating explosives positioned in a well. The apparatus includes a first coupling member and a second coupling member. The...
US-4,542,588 Beam compass
A beam compass including a base having a center pivot pin and a bore, and including a portion extending from the base to a center pivot reference point. An...
US-4,542,464 Autopilot system
Apparatus for steering a vessel and maintaining it on a preset course through the combination and arrangement of an incremental encoder and a heading reference...
US-D280,464 Belt buckle
US-4,538,682 Method and apparatus for removing oil well paraffin
A method of removing paraffin build up from an oil well which includes determining the location of a cooler portion of the oil well at which paraffin build up...
US-4,537,675 Upgraded solvents in coal liquefaction processes
New solvent compositions and a new two-stage direct coal liquefaction process are provided which permit control of the liquid product state from one consisting...
US-D280,323 Microphone or similar article
US-4,532,892 Animal feeding and monitoring system
The animal feeding and monitoring system includes an electronic identity tag having a code generator for generating a coded identifier signal uniquely associated...
US-D279,708 Teat implant
US-D279,707 Teat implant
US-4,526,771 Sulfurous acid generator
A highly efficient apparatus for burning sulfur to sulfur dioxide and generating sulfurous acid comprises a primary sulfur-burning chamber, a sulfur feed tank...
US-4,523,460 Fluid measuring, testing and accounting system
A system which enables the measuring, testing and accounting for a fluid, preferably oil, as stored in a tank battery adjacent a producing oil well system. In...
US-4,522,727 Process for continuous removal of ammoniacal nitrogen from aqueous streams
A continuous process for removal of ammoniacal nitrogen from water is disclosed. This process is useful for maintaining water quality in aquaculture operations,...
US-D279,163 Combined ratchet wrench socket nut ejector spring and retainer
US-4,519,806 Enhanced recovery of soda ash from aqueous sodium carbonate solutions containing Na.sub.2 SO.sub.4 - and NaCl
A method for enhancing the recovery of dense soda ash from Na.sub.2 SO.sub.4 - and NaCl-containing aqueous sodium carbonate solutions by first co-crystallizing...
US-4,518,403 Degasser-desurger unit
The present invention provides a method and related apparatus for desurging and degassing a liquid stream having hydrocarbon, aqueous and gaseous components,...
US-4,516,637 Hoisting apparatus and method for raising oil tubing
A hoisting apparatus mounted on a vehicle and used to raise oil tubing from within an oil well casing or the like having a lower telescoping boom element that...
US-4,515,212 Internal casing wiper for an oil field well bore hole
The invention provides for an improved internal casing wiper tool 10 designed to wipe the casing sides 10 of a well bore hole 30 in order to remove debris 60...
US-4,515,188 Drain apparatus
Apparatus is described which is adapted for draining fluid from containers and into a collection vessel. The containers to be drained, and the collection vessel,...
US-D278,594 Ratchet wrench socket unit nut ejector spring retainer
US-4,512,430 Electronic coupled-in-motion railroad track scale
An electronic coupled-in-motion railroad track scale is disclosed and comprises four track logic switches for detecting forward or backward train axle movement,...
US-4,507,863 Packsaw
A compact packsaw is conveniently housed in a casing. The saw includes a flat tapered blade having different teeth on opposite edges with a multiple part...
US-4,502,796 Bearing for a rotating shaft
A bearing for a rotating shaft including a main body with three sections. The first section has a square profile whose sides are dimensioned to be received in a...
US-4,501,202 Body shop worktable
A worktable for use in automobile body shops. The table has removable sideboards which are adapted to extend upwardly from the side edge of the table, with the...
US-4,498,734 Means and method of controlling reflected image containment
A means and method primarily for the control of a projected image reflected from an optical screen, such as the screen of an outdoor or drive-in theater, whereby...
US-4,498,706 Solution mining of trona or nahcolite ore with aqueous NaOH and HCl solvents
Separate deposits of trona or nahcolite ore are solution mined with two solvents, aqueous sodium hydroxide and aqueous hydrogen chloride. Aqueous sodium...
US-4,498,676 System for practicing roping
A system is described for use by a person practicing the art of roping a moving target (e.g., a calf or steer) which does not require the use of live animals....
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