Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4871814 | High impact, highly transparent linear styrene-diene block copolymers with five or more blocks and their preparations by anionic dispersion polymerization High molecular weight linear block copolymers containing 5 or more alternating blocks of (A) polymerized styrene or alkyl substituted styrene units, and (B) polymerized conjugated diene units, terminated by (A) units, are prepared by anionic dispersion po... | 10/03/1989 |
| 4871021 | Block copolymers useful for enhanced oil recovery processes Polymers and gels useful for permeability control in subterranean formations, said polymers having structural forms of ABA triblocks and (AB)n multiblock are disclosed.... | 10/03/1989 |
| 4871444 | Distillate fuel quality of FCC cycle oils A method for improving the cetane number of an aromatic hydrocarbon oil such as FCC light cycle oil and thereby increase its value as a blending stock for diesel fuel or heating oil. In one embodiment, the FCC light cycle oil is alkylated in the presence ... | 10/03/1989 |
| 4871446 | Catalytic cracking process employing mixed catalyst system A catalytic cracking process is disclosed which comprises catalytically cracking a hydrocarbon charge stock in a catalytic cracking unit possessing at least one reaction zone, stripping zone and catalyst regeneration zone to provide a gasiform product emp... | 10/03/1989 |
| 4871514 | Flapper valve A flapper valve for sealing the cyclone diplegs on a fluid catalytic cracking unit has conical sealing surfaces provided between the movable valve body and the valve seat on the bottom of the cyclone dipleg. In addition, a retaining ring around the movabl... | 10/03/1989 |
| 4871702 | Ammonium activation of zeolites in the presence of gaseous ammonia Alumina-composited zeolite catalysts are activated by contact with an aqueous ammonium solution under ammonia gas pressure such that a pH of at least about 10 is maintained in the solution. The treated zeolite may thereafter be calcined without prior ammo... | 10/03/1989 |
| 4870122 | HdPE films with imbalanced biaxial orientation High density polyethylene (HDPE) films, preferably containing blends of HDPE resins or microcrystalline wax, are oriented up to about two times in the machine direction and six times or more in the transverse direction to give films having good dead-fold ... | 09/26/1989 |
| 4869322 | Sequential hydraulic fracturing of a subsurface formation A subsurface formation having original in-situ stresses that favor the propagation of a horizontal fracture is penetrated by a borehole. A first fracturing fluid containing a propping material is pumped through the borehole and into the formation at a fir... | 09/26/1989 |
| 4869806 | Production of high viscosity index lubricating oil stock Waxy hydrocarbon oils, e.g., of petroleum origin, are catalytically dewaxed to produce high viscosity index lubricating oil stocks utilizing as catalyst acidic zeolite ZSM-57.... | 09/26/1989 |
| 4870192 | Production of lactones and omega-hydroxycarboxylic acids This invention provides process embodiments for shape-selective oxidation of cyclic ketones to lactone and/or omega-hydroxycarboxylic acid products in the presence of a zeolite catalyst composition such as ZSM-5 or zeolite Beta. Cyclohexanone can be conve... | 09/26/1989 |
| 4867863 | Resid catalytic cracking process utilizing ZSM-5 for increased gasoline octane A process for catalytically cracking deep cut vacuum gas oils, resids, or other reduced crudes containing metal contaminants to increase gasoline octane. Hydrocarbon feedstocks which include vanadium and sodium contaminants are introduced into the reactio... | 09/19/1989 |
| 4867893 | Reaction products of N,N-diorganodithiocarbamates with thionyl chloride and lubricant compositions containing same Disclosed are products derived from the reaction of amine or metal salts of N,N-diorganodithiocarbamic acids with thionyl chloride, SOCl2. These compositions are useful as antioxidants and antiwear additives in lubricating oil compositions.... | 09/19/1989 |
| 4867950 | Catalyst regeneration with flue gas Apparatus for regenerating zeolite-type catalyst used in fixed bed hydrocarbon conversion processes, such as the conversion of olefins to gasoline and diesel fuel. Regeneration is achieved using a portion of a flue gas stream to regenerate catalyst and pr... | 09/19/1989 |
| 4868144 | Process to reduce NOx emissions from a fluid catalytic cracking unit A multistage process for reducing NOx in flue gas from fluid catalytic cracking catalyst regeneration. Flue gas is preferably removed after each stage. NOx formed in each regeneration stage is converted to N2 prior to disc... | 09/19/1989 |
| 4868145 | Dehydrogenation and dehydrocyclization catalyst Non-acid microporous crystalline indium containing materials are combined with Group VIII metal such as platinum to produce catalysts which exhibit high selectivity for dehydrocyclization of C5+ paraffins and which exhibit little, i... | 09/19/1989 |
| 4868146 | Zeolite catalyst composition and synthesis method A surface-inactive shape selective metallosilicate catalyst, useful for the conversion of lower molecular weight olefins to liquid hydrocarbons such as gasoline, distillate, and high viscosity lube oils, is prepared by forming a silica shell on a medium p... | 09/19/1989 |
| 4868751 | Method for determining relative permeability of a subterranean reservoir A core sample from a subterranean reservoir is placed in a pressure cell holder and the core pressure is measured at a plurality of pressure points along the core before and during fluid flooding. A computed tomography (CT) scanning system provides images... | 09/19/1989 |
| 4867241 | Limited entry, multiple fracturing from deviated wellbores A hydraulic fracturing process for inducing simultaneously, multiple vertical fractures in a deviated well bore located in a subterranean formation for the removal of resources therefrom, particularly hydrocarbonaceous fluids. Said process results in incr... | 09/19/1989 |
| 4867632 | Apparatus for denesting and feeding cartons to a conveyor Apparatus for sequentially removing articles from a stack of nested articles and for controlling their movement to a location remote from the attack. The apparatus is particularly suited for denesting and feeding large multiple cell cartons such as eighte... | 09/19/1989 |
| 4867752 | N-alkyl amides as friction-reducers for lubricants and fuels N-alkyl amides, particularly N-alkyl formamides, are effective friction-reducing additives for use in lubricants and fuels.... | 09/19/1989 |
| 4867864 | Dehydrogenation, dehydrocyclization and reforming catalyst The invention relates to catalytic treatment of paraffin feeds to alter the hydrogen content of the feed, for example, by producing effluents the aromatic content of which exceeds that of the feed in which the catalyst is a non-acidic composition containi... | 09/19/1989 |
| 4865214 | Step-on wastebasket A wastebasket includes a container having a top opening, and a lid mounted on the container and adapted to pivot about a pivot axis to cover and uncover the top opening. A mechanism for actuating pivotal movement of the lid with respect to the container i... | 09/12/1989 |
| 4865689 | Method and apparatus for evaporating the volatile components of a polymer A device for removing the volatile components of a polymer in a polymer train includes a hollow pipe which defines an interior chamber, a pair of flanges mounted on opposite axial ends of the pipe, a heat jacket mounted on the pipe and disposed to surroun... | 09/12/1989 |
| 4865697 | Flashing feed inlet in a vapor/liquid contacting tower and method A flashing feed inlet device is used in a vapor/liquid contacting column, such as a distillation column, to decrease the amount of liquid entrainment and maldistribution of vapor occurring when the liquid feed stream is introduced into the column at a tem... | 09/12/1989 |
| 4865718 | Maximizing distillate production in a fluid catalytic cracking operation employing a mixed catalyst system A fluid catalytic cracking method which comprises: (a) cracking a hydrocarbon feed stock in the presence of a mixed catalyst system which comprises particles of a first, amorphous cracking catalyst and/or large crystalline cracking catalyst component which req... | 09/12/1989 |
| 4865908 | Coated, oriented polymer film laminate A coated, oriented polymer film laminate is provided which comprises: (a) an oriented core layer having an upper face and a lower face, said core layer being fabricated from a polypropylene homopolymer; (b) an oriented layer applied to the lower face, and optionall... | 09/12/1989 |
| 4866021 | Catalyst composition for preparing high density, broad molecular weight distribution alpha-olefin polymers Broad molecular weight distribution, and high molecular weight olefin polymers, are prepared by polymerizing at least one olefin in the presence of a vanadium - and a titanium-containing catalyst composition. A catalyst precursor is synthesized by contact... | 09/12/1989 |
| 4866120 | Elastomeric end difunctional polymers Directed to functionalized saturated polymers having elastomeric characteristics and to compositions containing minor amounts thereof and to the process of making them.... | 09/12/1989 |
| 4864864 | Method for measuring stress deformation of materials A sample of material is rotated within a pair of parallel, spaced-apart laser beams. Variations in the diameter of the sample are determined with azimuth from the amounts of the laser beams intercepted by the sample as it rotates about an axis perpendicul... | 09/12/1989 |
| 4865444 | Apparatus and method for determining luminosity of hydrocarbon fuels Disclosed is apparatus comprising a means for injecting a controlled stream of hydrocarbon liquid into a concurrently flowing stream of gas in a Venturi forming droplets. Droplets are subsequently combusted in a gas stream. The level of radient emissions ... | 09/12/1989 |
| 4863885 | Method for increasing the hydrocarbon sorption capacity of a zeolite A method is disclosed for increasing the hydrocarbon sorption capacity of a highly siliceous shape-selective zeolite by exposing the zeolite to an aqueous solution having an initial pH ranging between about 10.5 to about 14. The method is particularly use... | 09/05/1989 |
| 4863886 | Magnesium oxide-supported ziegler catalyst modified with acid and higher alkanol, and process for preparing narrow MWD HDPE MgO treated with an organic acid, e.g., 2-ethyoxybenzoic acid, is used as a support for an Al-Ti Ziegler catalyst in which the Ti component is the product of an alkanol having 5 to 12 carbon atoms and TiCl4 to give HDPE with narrow MWD and larg... | 09/05/1989 |
| 4864067 | Process for hydrotreating olefinic distillate A process and reactor system is disclosed for hydrotreating a low sulfur containing olefinic distillate and conventional feedstock to a catalytic hydrodesulfurization. The process comprises passing a minor portion of the olefinic distillate to a first hyd... | 09/05/1989 |
| 4862564 | Apparatus for stretching a thermoplastic material web A thermoplastic material web is stretched transverse to the machine direction along a stretch course which widens exponentially in the stretching zone, an improved stretching apparatus being used to effect such stretching.... | 09/05/1989 |
| 4864074 | Process for converting methane to higher molecular weight hydrocarbons via sulfur-containing intermediates There is provided a process for converting methane to higher molecular weight hydrocarbons. In a first step, methane is contacted with elemental sulfur. In one embodiment, carbon disulfide and hydrogen sulfide are produced from this reaction of methane an... | 09/05/1989 |
| 4864073 | Processes for converting methane to higher molecular weight hydrocarbons via sulfur-containing intermediates There is provided a process for converting methane to higher molecular weight hydrocarbons. In a first step, methane is contacted with carbonyl sulfide in the presence of UV light under conditions sufficient to produce CH3 SH. This CH3 | 09/05/1989 |
| 4862836 | Operation of an internal combustion engine with a pre-engine converter A method is provided of operating an internal combustion engine comprising subjecting a hydrocarbon fuel of relatively low octane number to conversion at elevated temperatures by passing it through a reaction zone containing a fuel system of unidirectiona... | 09/05/1989 |
| 4863585 | Fluidized catalytic cracking process utilizing a C3-C4 paraffin-rich Co-feed and mixed catalyst system with selective reactivation of the medium pore silicate zeolite component thereofo The present invention discloses a catalytic cracking process featuring at least one riser reactor, at least one stripping unit and at least one regenerator, which comprises: (a) cracking a C3-4 paraffin-rich feed in the lower section of the ris... | 09/05/1989 |
| 4860830 | Method of cleaning a horizontal wellbore A method for cleaning a horizontal wellbore where a first fluid have a known specific gravity is introduced into said wellbore. Thereafter, a second fluid having a specific gravity less than said first fluid is introduced into said wellbore. Said second f... | 08/29/1989 |
| 4861932 | Aromatization process A process for converting a C2 -C12 paraffinic hydrocarbon feed to aromatics comprising passing the feed through a first conversion zone wherein the feed contacts a noble metal/low acidity medium pore size zeolite catalyst, and then p... | 08/29/1989 |
