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.
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 |
| 7385099 | Multiple riser reactor with centralized catalyst return The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and opt... | 06/10/2008 |
| 7102050 | Multiple riser reactor The present invention is directed to a hydrocarbon conversion apparatus. The apparatus comprises the following: a plurality of riser reactors, each of the riser reactors having a first end into which a catalyst can be fed and a second end through which the catalyst ... | 09/05/2006 |
| 6822128 | Flow control in a three-phase monolithic catalyst reactor A method is disclosed for maintaining a volumetric gas to liquid ratio in a segmented gas/liquid flow along a reactor of monolithic catalyst beds in series. The present invention includes the steps of: initiating the segmented gas/liquid flow at a first end of the r... | 11/23/2004 |
| 6486374 | Method and apparatus for alkylation using solid catalyst particles in a transport reactor A method and apparatus for alkylating an alkylation substrate with an alkylating agent in the presence of solid catalyst particles in a transport reactor is disclosed. Solid catalyst particles in the transport reactor effluent recirculate to the inlet of ... | 11/26/2002 |
| 6284104 | Apparatus and process for hydrogenations An apparatus for conducting reactive distillations comprising a first distillation column, a first primary catalyst bed for carrying out a hydrogenation of unsaturated compounds comprising diolefins. The first primary catalyst bed is positioned in the dis... | 09/04/2001 |
| 5728916 | Thermal cracking Steam-free non-catalytic cracking of hydrocarbons in reaction zomes each having surfaces heated externally and a heated surface to volume ratio above 3 cm-1, at a rate such that the flow through each reaction zone is essentially laminar.... | 03/17/1998 |
| 5321191 | Process for the thermal pyrolysis of hydrocarbons using an electric furnace A process for the thermal pyrolysis of hydrocarbons in a reactor (1) of elongate shape comprising at a first end supply means (5) for a gaseous mixture containing at least one hydrocarbon, at the opposite end discharge means (10) for the effluents produce... | 06/14/1994 |
| 5254765 | Process and apparatus for the production of aromatic hydrocarbons from an aliphatic hydrocarbon charge in a reactor heated by a fluidized particle bed The invention relates to a process and an apparatus for the production of aromatic hydrocarbons from an aliphatic hydrocarbon charge with 2 to 12 carbon atoms. The process comprises a stage of contacting a charge of at least one aliphatic hydrocarbon with... | 10/19/1993 |
| 5196627 | Isoparaffin:olefin alkylation process and reactor apparatus The invention provides a substantially fail-safe HF alkylation process and reactor apparatus. The elongated reactor vessel is enclosed in a well casing and an alkylate-containing hydrocarbon layer is maintained above the hydrofluoric acid to prevent relea... | 03/23/1993 |
| 5196629 | Isoparaffin:olefin alkylation process and reactor apparatus The invention provides a substantially fail-safe HF alkylation process and reactor apparatus. The elongated reactor vessel is enclosed in a subterranean well casing and an alkylate-containing hydrocarbon layer is maintained above the hydrofluoric acid to ... | 03/23/1993 |
| 5160501 | Method for thermal conversion of methane and reactor for carrying out the method Method and apparatus for thermal conversion of methane to hydrocarbons of higher molecular weight, comprising a reactor 1 of elongated shape, connected at a first end to means 5 for supplying gas mixture containing methane (process gas), and connected at ... | 11/03/1992 |
| 5043505 | Oxidative coupling of aliphatic and alicyclic compounds and mixed basic metal oxide catalyst therefore A catalytic process for gas phase oxidative coupling of aliphatic and alicyclic hydrocarbon compounds to produce higher molecular weight hydrocarbon compounds, the catalyst being a mixed basic metal oxide or sulfide catalyst. One preferred mixed basic met... | 08/27/1991 |
| 5030789 | Catalytic method for the dimerization, codimerization or oligomerization of olefins with the use of an autogenous thermoregulation fluid The invention provides a catalytic method for the dimerization or codimerization or oligomerization, in particular selective, of olefins, carried out under pressure, in a reaction zone 1 containing a solid catalyst bed in which is disposed a plurality of ... | 07/09/1991 |
| 4995961 | Process and apparatus for hydrogenating hydrocarbons An improved process and apparatus for hydrogenating a stream of hydrocarbons is provided. The pressure and temperature of the stream are elevated and the stream is passed through two or more serially connected hydrogenation reaction zones. While passing t... | 02/26/1991 |
| 4950827 | Oxidative coupling of aliphatic and alicyclic hydrocarbons with aliphatic and alicyclic substituted aromatic hydrocarbons A catalyst and a process for oxidative coupling of aliphatic and alicyclic hydrocarbon compounds with aliphatic and alicyclic substituted aromatic hydrocarbon compounds to form a longer substituent hydrocarbon on the aromatic ring. The catalyst is mixed b... | 08/21/1990 |
| 4943669 | Method according to the invention is notably applied to the selective dimerization of propylene into methyl-4-pentene-1 The invention provides a catalytic method for the dimerization or codimerization or oligomerization, particularly selectively, of olefins, carried out under pressure, in a reaction zone 1 containing a solid catalyst bed into which is disposed a plurality ... | 07/24/1990 |
| 4935572 | Mixed basic metal oxide catalyst for oxidative coupling of methane A catalyst and process for oxidative coupling of methane, the catalyst being a mixed basic metal oxide catalyst. One preferred catalyst is boron/alkali metal promoted metal oxide.... | 06/19/1990 |
| 4929797 | Method for producing hydrocarbons having two carbon atoms A method for producing hydrocarbons having two carbon atoms, which comprises introducing methane gas into a reactor downwardly from the top, the reactor comprising a pair of reactor walls extending vertically and facing each other, one of the walls being ... | 05/29/1990 |
| 4879427 | Methane conversion A process is provided for the oxidative conversion of methane to higher hydrocarbons wherein a mixture of methane and gaseous oxidant is contacted at reaction conditions with a solid oxidative contact agent which is essentially free of reducible metal oxi... | 11/07/1989 |
| 4205196 | Acid-type hydrocarbon alkylation with acid recycle streams at spaced points of a vertically-disposed elongated reactor A method of alkylating an alkylatable hydrocarbon with different alkylating agents, at different reaction temperatures and in a single reaction zone, in which an alkylatable hydrocarbon is contacted with an acid-type catalyst and at different points in an... | 05/27/1980 |
| 4134734 | Detergent alkylation reactor A unitary reactor system for the alkylation of benzene with olefins. The hydrocarbon reactants are sprayed horizontally from a plurality of openings in a number of vertical conduits which extend upward into a lower portion of the vessel. The conduits are ... | 01/16/1979 |
| 4080285 | Thermal cracking of shale oil A process for the non-catalytic riser cracking of shale oil to produce ethylene in the presence of entrained hot, inert solids.... | 03/21/1978 |
| 4070412 | Method for production of acetylene by laser irradiation Production of acetylene by pyrolytic cracking of hydrocarbons following lr volumertric heating by: doping the feed stock with an absorbing gas such as ethylene to absorb laser radiation in a controlled manner: applying laser radiation in the form of a sh... | 01/24/1978 |
| 4051193 | Process for producing ethylene from ethane Process and apparatus are provided for producing ethylene by the oxidative dehydrogenation of ethane wherein ethane is introduced to a cylindrical jet reactor wherein the ethane is reacted at elevated temperatures with a gas mixture containing oxygen and ... | 09/27/1977 |
| 4049732 | Continuous telomerization process and its liquid products Continuous process and apparatus for the preparation of normally liquid telomers derived from the reaction of a liquid telogen, such as toluene, with a polymerizable monomeric taxogen in gaseous form, such as 1,3-butadiene monomer, in the presence of an o... | 09/20/1977 |
| 4046825 | Conversion of oxygenated compounds to gasoline A method for effecting chemical reactions of aliphatic hetero compounds comprising alcohols, halides mercaptans, sulfides, amines, ethers and carbonyl compounds with crystalline zeolite catalysts of the ZSM-5 type in a fluid catalyst operation is describe... | 09/06/1977 |
| 4045508 | Method of making alpha-olefin oligomers The trimer to tetramer ratio of an alpha-olefin oligomer is varied over a significant range in a continuous, multi-stage alpha-olefin oligomerization process including a first stage tank reactor and a final tube reactor by controlling the amount of conver... | 08/30/1977 |
| 4045507 | Method of oligomerizing 1-olefins The trimer to tetramer ratio of an alpha-olefin oligomer is varied over a significant range in a continuous, multi-stage alpha-olefin oligomerization process including a series of at least two flow-through tank reactors by controlling the amount of conver... | 08/30/1977 |
| 3982903 | Alkylation reaction chamber An improved alkylation reaction chamber for contacting acid catalysts with alkylation reactants. A heat exchanger, a plurality of baffles and a plurality of spray nozzle assemblies are disposed within a vertically positioned, elongated vessel. Acid cataly... | 09/28/1976 |
| 3944394 | Apparatus suitable for carrying out catalytic process Feedstock at a first temperature is mixed with a heating fluid at a second temperature and the mixture resulting therefrom is immediately contacted with a catalyst in a catalytic conversion zone as the mixture reaches a third temperature, thus producing a... | 03/16/1976 |