Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 5504132 | Solvent free oil soluble drag reducing polymer suspension A hydrocarbon soluble drag reducing suspension is described as well as a process for obtaining the same. Process is directed toward producing a drag reducing product which is easily transportable, non-hazardous, easily handled and while providing a signif... | 04/02/1996 |
| 5504131 | Solvent free oil soluble drag reducing polymer suspension A hydrocarbon soluble drag reducing suspension is described as well as a process for obtaining the same. Process is directed toward producing a drag reducing product which is easily transportable, non-hazardous, easily handled and while providing a signif... | 04/02/1996 |
| 4962666 | Mass flowmeter apparatus This invention relates to a method and apparatus for a liquid mass non-venting flowmeter. The flowmeter apparatus gives correct flow regardless of changes in density, viscosity, or composition of the liquid and corrects flow in spite of errors common in c... | 10/16/1990 |
| 4800539 | Method and apparatus for seismic dip filtering A computer-implemented technique for dip filtering of seismic data whereby seismic data of a selected attribute in space and time coordinates is displayed in accordance with a 3-D illumination model such that the apparent angle of illumination of the data... | 01/24/1989 |
| 4794573 | Process for separating upgoing and downgoing events on vertical seismic profiles A process for separating upgoing and downgoing seismic wave events in a vertical seismic profile, and particularly for vertical seismic profiles wherein the seismic energy source is offset from the borehole in which seismic detectors are located in vertic... | 12/27/1988 |
| 4786478 | Method and apparatus for isotope separation Method and apparatus for isotope separation using the combination of selective pre-excitation by light radiation with further collisional processing in a DC, rf or microwave gas discharge field to recover ionized atoms or dissociated molecules of the sele... | 11/22/1988 |
| 4785196 | Method and apparatus for converting seismic traces to synthetic well logs Method and apparatus for producing improved synthetic velocity logs from seismic traces. The seismic traces are processed to enhance high frequency content by converting each trace to a spike trace, then filtering the spike trace with a function designed ... | 11/15/1988 |
| 4785431 | Broad-band hydraulic vibrator A hydraulic vibrator having an adjustable piston rod and a fixed piston rod to vary the cylinder volume for operation at different vibration frequencies. The adjustable piston rod is in threaded engagement with the fixed piston rod and has a piston head a... | 11/15/1988 |
| 4785430 | Hydraulic vibrator with wide dynamic range Vibrator apparatus having adjustable cylinder volume by means of a continuously adjustable end sleeve that varies the axial limit of the cylinder. A reaction mass with an axial cylinder bore reciprocates on a double rod piston. Frist and second end sleeve... | 11/15/1988 |
| 4783770 | Method of three-component reflection seismology A method of three-component seismology wherein seismic energy induced vertical, radial and transverse particle movement is detected at plural spaced positions along a survey line to produce orthogonal data signals, and the different orthogonal data signal... | 11/08/1988 |
| 4779238 | Method for fast slant stack of seismic data A method for processing seismic data in the x-t domain to derive a slant stack in the p-tau domain wherein partial slant stacks are computed over a plurality of small groups of traces which are iteratively merged using linear interpolation into successive... | 10/18/1988 |
| 4775487 | Rotating continuous separation system A continuous separation apparatus having a plurality of separation chambers in a continuously rotating block between fixed end plates. The axis of the chambers, preferably cylinders, is parallel to the axis of rotation of the block, wherein the end plates... | 10/04/1988 |
| 4773520 | Steering apparatus for a tramming conveyor This invention describes a steering apparatus for a tramming conveyor having at least one end articulated about a vertical axis so that said articulated end can deviate angularly in either direction about the longitudinal axis of the conveyor. The steerin... | 09/27/1988 |
| 4724130 | Recovery of promoters used in flue gas desulfurization In flue gas desulfurization, sorbent promoters are recovered by mixing collected particulates with water to form a slurry. The slurry is dewatered and wet solids are disposed. The recovered material contains water soluble desulfurization promoters and is ... | 02/09/1988 |
| 4720290 | Reduction of liquid atomizer droplet size The dispersing ability of atomizing nozzles is improved by dissolving a portion of the dispersion gas into the subject liquid at pressures of at least 50 psi. Explosive expansion of the dissolved gas in the nozzle greatly aids atomization. Further atomiza... | 01/19/1988 |
| 4719029 | Soluble oil emulsifier with bioresistance The ammonium salt of a sulfated ethoxylated alcohol is used as an emulsifying agent to provide resistance to biological degradation of continuous water phase hydraulic fluids. The emulsification agent allows the necessary emulsification properties and in ... | 01/12/1988 |
| 4718443 | Mass flowmeter apparatus This invention relates to a method and apparatus for a liquid mass flowmeter. The flowmeter apparatus gives correct flow regardless of changes in density, viscosity, or composition of the liquid and corrects flow in spite of errors common in currently use... | 01/12/1988 |
| 4708395 | Remotely sensing of excavation cavity during mining Method and apparatus for hydraulically mining a location using a hydraulic monitor which has horizontal and vertical positionable control apparatus. The hydraulic monitor is connected to a source of high pressure water. Distance and direction measuring eq... | 11/24/1987 |
| 4699961 | High efficiency catalysts for varying olefin polymer molecular weight distribution Catalysts having high efficiency in preparing olefin polymers while controlling molecular weight distribution are disclosed. The catalysts utilize magnesium siloxide supports and the product polymer molecular weight distribution can be controlled by the c... | 10/13/1987 |
| 4693826 | Overflow for slurry tank This invention describes an overflow system for a slurry storage chamber which chamber has a slurry input pipe tangentially mounted through a side wall of the tank to create a vortex. The overflow portion is designed to have a pressure confining top to th... | 09/15/1987 |
| 4693321 | Method using encapsulated flow improvers to reduce turbulence Polymeric flow improvers, whether alone or partially dissolved in a solvent, are encapsulated to provide a free flowing particulate powder which can be easily transported and subsequently placed into hydrocarbons wherein the outer shelf of the encapsules ... | 09/15/1987 |
| 4680334 | Flame retardant polymer compositions containing molybdenum compounds and sulfur-containing polymers A synergistic effect in reducing the burning characteristics of polymers is obtained by the use of molybdenum based compounds in conjunction with an effective amount of a sulfur-containing polymer whether used alone or as an additive to other polymeric sy... | 07/14/1987 |
| 4676810 | Revolving separator Slurries containing solid liquids and gases are continuously separated into individual components utilizing a revolving vanes on an eccentric axis. The vanes are of a flexible material which revolve sufficiently slowly that in sequence gas escapes through... | 06/30/1987 |
| 4670238 | Recycled sorbent flue gas desulfurization An improved process for reducing the sulfur content of a flue gas derived from combination of a sulfur-containing fuel by inserting a dry sulfur sorbent material into the flue gas, then humidifying the sorbent-containing flue gas to enhance sulfur removal... | 06/02/1987 |
| 4668408 | Composition and method for treatment of wellbores and well formations containing paraffin Composition and method for treating wellbores and well formations to remove and inhibit accumulations of paraffin. The composition comprises a liquid mixture of a water soluble ethoxylated alkyl phenol and an alcohol containing one to four carbon atoms. P... | 05/26/1987 |
| 4649034 | Catalyzed flue gas desulfurization Flue gas resulting from combustion of sulfur-containing fuel is treated for reduction of its sulfur dioxide content by creating in it a suspension of finely divided sorbent such as lime, and then contacting it at elevated temperature in a vertical contact... | 03/10/1987 |
| 4645379 | Pyramidal offshore structure An underwater storage structure comprising an internally segmented tetrahedron and/or hexahedron, said self supporting structure having a fluid impermeable covering and an internally segmented skeleton. The structure can be subdivided internally by fluid ... | 02/24/1987 |
| 4617352 | Ethylene polymer composition for blow molding Polyethylene blends for blow molding processes are disclosed, comprising from 12 to 25 weight percent of high molecular weight component, 5 to 83 weight percent of a medium molecular weight component, and 5 to 83 weight percent of the low molecular weight... | 10/14/1986 |
| 4615871 | Flue gas desulfurization process An aqueous solution of an alkaline earth salt of a low molecular weight carboxylic acid, such as calcium formate, is sprayed into a sulfur dioxide containing flue gas upstream of a solids particulate separator in amount sufficient to produce a flue gas te... | 10/07/1986 |
| 4613487 | Flue gas desulfurization process Flue gas is desulfurized by mixing into the combustion zone a finely divided sorbent such as calcium carbonate and, downstream of the mixing point, reactivating the sorbent by spraying the gaseous suspension with an aqueous solution of solubilizing agent ... | 09/23/1986 |
| 4611955 | Slurry pump tram control apparatus Method and apparatus are described for removing material from a sump. The sump has substantially parallel and elongated sidewalls and has a longitudinal axis. The sump is enclosed with ends and a bottom and is adapted for filling with a water-solid mixtur... | 09/16/1986 |
| 4609536 | Method for producing reactive lime and reducing sulfur dioxide Limestone is calcined by being suspended in hot gas produced by combustion of a low-carbon fuel to produce a quicklime of high surface area, which in one embodiment is used for flue gas desulfurization.... | 09/02/1986 |
| 4608346 | Method for determining phenol using a simple distillation apparatus An improved distillation apparatus is disclosed containing expansion means and vapor draw means surrounded by heating means to provide vapor/liquid phase separation entirely within the heating bath. The apparatus is especially useful for determining pheno... | 08/26/1986 |
| 4604269 | Flue gas desulfurization process Flue gas is desulfurized by mixing into it at a temperature between about 120° and about 230° C. a finely divided sorbent such as calcium hydroxide which has been reacted with an aqueous solution of solubilizing agent such as a deliquescent compound or ... | 08/05/1986 |
| 4603183 | Hydrocarbon soluble catalyst supports and resultant polymerization catalysts A method is provided for preparing hydrocarbon soluble magnesium siloxide supports comprising contacting such supports with sufficient aluminum alkoxide or organic ethers to render the supports hydrocarbon soluble. Thereafter the supports are contacted wi... | 07/29/1986 |
| 4603173 | Processing polyethylene resins Polyethylene blow molding resins having improved processing properties such as reduction of flare swell and die swell are obtained by treating resins having particular molecular weight characteristics with low levels of free radical initiators. The free r... | 07/29/1986 |
| 4600569 | Flue gas desulfurization process An aqueous solution of an alkaline earth salt of a low molecular weight carboxylic acid, such as calcium formate, is sprayed into a sulfur dioxide containing flue gas upstream of a solids particulate separator in amount sufficient to produce a flue gas te... | 07/15/1986 |
| 4600568 | Flue gas desulfurization process Flue gas is desulfurized by mixing into it at a temperature between about 120° and about 230° C. a finely divided sorbent such as calcium hydroxide and, immediately downstream of the mixing point, spraying the gaseous suspension with an aqueous solution... | 07/15/1986 |
| 4597859 | Adjustable vortex classifier A method and apparatus for classifying particles which essentially comprise a circular chamber with first and second ends. A high pressure inlet is mounted tangentially to the side of the circular chamber and a high pressure outlet is, likewise, mounted t... | 07/01/1986 |
| 4597067 | Borehole monitoring device and method A method and device for sensing hole parameters while drilling a borehole, and transmitting the sensed data to a remote receiver. Data are transmitted in digital format as a series of audible binary pulses generated by a solenoid acoustically coupled to t... | 06/24/1986 |
