Patent application number | Description | Published |
20090143601 | METHOD FOR PREVENTING FUMARIC ACID DEPOSITS IN THE PRODUCTION OF MALEIC ACID ANHYDRIDE - The present invention provides a process for preventing fumaric acid deposits in the preparation of maleic anhydride, comprising the following steps: | 06-04-2009 |
20090314992 | PROCESS FOR WORKING UP SOLVENT-CONTAINING HYDROGENATION PRODUCT MIXTURES - The present invention relates to a process for separating off solvents from solvent-comprising hydrogenation outputs from a catalytic hydrogenation process, which comprise at least one water-soluble hydrogenation product having at least one alcohol, lactone, ether, lactam or amino group in a solvent which is immiscible or not completely miscible with water and has a boiling point below 100° C., wherein water is added to the hydrogenation output, the solvent-comprising phase is separated off and recirculated to the hydrogenation. | 12-24-2009 |
20100113805 | PROCESS FOR OBTAINING MALEIC ANHYDRIDE BY DISTILLATION - What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by
| 05-06-2010 |
20110021789 | PROCESS FOR SEPARATING OFF FUMARIC ACID AND OTHER MINOR COMPONENTS DURING THE PRODUCTION OF MALEIC ANHYDRIDE - A process for decreasing fumaric acid deposits in the preparation of maleic anhydride by heterogeneously catalyzed oxidation of a hydrocarbon with molecular oxygen, in which the maleic anhydride is absorbed from the crude product mixture in an absorbent in an absorption column and desorbed again in a desorption column, the entirety or a portion of the absorbent depleted in maleic anhydride, for controlled precipitation of fumaric acid, being cooled and/or concentrated by evaporating a portion of the absorbent to such an extent that the difference between the concentration of fumaric acid in the recycle stream at the outlet of the desorption column under the conditions existing there and the equilibrium concentration of fumaric acid according to the solubility curve after the cooling and/or evaporation of a portion of the absorbent is greater than or equal to 250 ppm by weight, and the fumaric acid precipitated as a solid is removed completely or partly from the absorbent recycling system and the fumaric acid-depleted absorbent is recycled completely or partly to the absorption column. | 01-27-2011 |
20110245517 | PROCESS FOR PREPARING TETRAHYDROFURAN - The present invention relates to a process for preparing tetrahydrofuran by absorption of C | 10-06-2011 |
Patent application number | Description | Published |
20110006576 | LOCKING MECHANISM FOR A VEHICLE SEAT - A locking mechanism ( | 01-13-2011 |
20110006577 | LOCKING MECHANISM FOR A VEHICLE SEAT - A locking mechanism ( | 01-13-2011 |
20110012415 | LOCKING MECHANISM FOR A VEHICLE SEAT - A locking mechanism ( | 01-20-2011 |
20110266730 | SPRING, IN PARTICULAR FOR A LOCKING DEVICE OF A VEHICLE SEAT | 11-03-2011 |
20120227660 | INDICATOR APPARATUS - An indicator apparatus for signaling that a foldable backrest of a seat in a motor vehicle is not locked includes a handle pivoted between a locked position and an unlocked position about a pivot axis, a locking apparatus having a catch that, by working of the handle can be moved between a blocked position and an unblocked position, and an indicator element guided between a non-indication position and an indication position and movable by a transition element. The transmission element comprises a spring element that is fixedly connected both to the handle and to the indicator element. The spring element is resistant to deformation as the indicator element is moved by the handle, but can be deformed in an elastic manner when the handle is located in the unlocked position and the indicator element is moved out of the indication position into the non-indication position. | 09-13-2012 |
20130307307 | LOCK FOR A VEHICLE SEAT, AND VEHICLE SEAT - A lock for a vehicle seat has a catch which is pivotable about a catch axis between a release position and a locking position in order to cooperate with a locking bolt or a locking clip of a vehicle structure, and has an ejector. The ejector has a spring element disposed in a housing of the lock. The ejector can be brought into abutment against the vehicle structure or the locking bolt or locking clip by a biased spring element. | 11-21-2013 |
20140306507 | LOCKING DEVICE AND VEHICLE SEAT - A locking device for a vehicle seat has a latch which is mounted pivotably about a second axis and is intended for locking a counter element, with a clamping eccentric which is mounted pivotably about a first axis parallel to the second axis and, by interaction with a first functional surface of the latch, secures a locked state of the latch. In the locked state, the clamping eccentric acts in a spring-loaded manner on the first functional surface via a clamping surface. The clamping eccentric is moveable from the locking position thereof into the unlocking position thereof. A pretensioned compression spring is provided, which is supported at one end thereof on an arm of the clamping eccentric in a manner spring-loading the latter into the locking position thereof and, at the other end thereof, acting upon the latch in the unlocking direction. | 10-16-2014 |
20140348578 | LOCKING DEVICE - A locking device for a vehicle seat, includes a pawl for locking a mating element, which pawl is pivotally supported about a first axis, and a tensioning eccentric that is pivotally supported about a second axis, which is parallel to the first axis, between a locking position and an unlocking position and ensures a locked state of the pawl owing to the interaction with a first functional surface of the pawl, the tensioning eccentric acting upon the first functional surface by a tensioning surface when spring-loaded and locked, an unlocking element being pivotable about the first axis counter to a spring force from a locking position to an unlocking position by an actuation device and the tensioning eccentric being pivotally engaged by the unlocking element from its locking position towards its unlocking position. | 11-27-2014 |
20150041611 | LOCKING DEVICE AND VEHICLE SEAT - A locking device for a vehicle seat has a catch which is mounted such that it can be pivoted about a second axis and is intended for locking a mating element, and has a clamping eccentric which is mounted such that it can be pivoted about a first axis, between a locking position and an unlocking position and secures a locked state of the catch by interaction with a first functional surface of the catch. In the locked state, the clamping eccentric acts on the first functional surface via a clamping surface. An unlocking element is mounted such that it can be pivoted about the second axis by an actuating device, counter to a spring force, out of a locking position into an unlocking position. The unlocking element and the clamping eccentric have arranged between them a bias spring element. | 02-12-2015 |