baber/WOPTO huggingface dataset:
Patent IT-1271762-B (IT)
Inventor: BINI ANSELMO
IPC: B65D19/40
Filed: 1994-03-18
Granted: 1997-06-09
Abstract: A pallet-type support for the movement of loads, characterized in that it comprises at least one supporting leg or element in the form of a tubular shell (2) containing inner structure-reinforcing elements (3-5) for said tubular shell, spaced from each other by a pre-set distance and alternated with two or more through cavities (6) to house the forks of elevator devices, said tubular shell and reinforcing elements being made from the same type of material.
Patent IT-1263285-B (IT)
Title: Universal aerosol system with active propulsion and dynamics system
IPC: B05B/
Filed: 1992-06-22
Granted: 1996-08-05
Abstract: The invention concerns a universal aerosol system that comprises, for example, a tube 3, for expulsion of the product, connecting with the lower part 4 of the container and a nozzle 5 for the exit of the gas, connecting with the upper part 6 of the container; the intermediate part 12 of the nozzle is connected to the part 9 that comprises the end tube 0; the gas expelled through the hole 13 rises into the end tube 0 in which it is mixed with the product, expelled through the hole 10 and its discharge and atomisation are energised. <IMAGE>
Patent IT-1250994-B (IT)
Title: Apparatus for the automatic programmable dispensing of beverages of various kind in various quantity under electronic control
Inventor: ANGUILLESI MAURO
IPC: G01F/
Filed: 1991-04-26
Granted: 1995-04-27
Abstract: This system makes it possible to quickly dispense with good precision alcoholic and non-alcoholic beverages of various kind and in various quantity, in reproducible manner, by means of an electronic computer. <IMAGE>
Patent IT-1254326-B (IT)
Title: Tongs for moving pieces of ice cream and the like in their industrial production process
IPC: A23G/
Filed: 1992-04-17
Granted: 1995-09-14
Abstract: This invention relates to handling tongs having a pair of jaws equipped with bars with sharpened gripping pins and an attached supporting frame. The frame comprises a C-shaped member the top of which connects to means, such as chains, for moving the tongs forwards along the production line for pieces of ice cream, and below a contact roller supporting plate with means to guide the tongs as they move forwards. The jaws, which are hinged to member C, are operated by a rotatable lever on the supporting plate. The lever has a central part with an eccentric profile which is located between the jaws and engages the opposing surfaces of these jaws, and two arms projecting from the part to come into contact with the actuating means located along the working line. <IMAGE>
Patent IT-1254412-B (IT)
Title: Sistema di alimentazione di bobine di un incannatoio automatico.
IPC: B65H73/00
Filed: 1992-06-26
Granted: 1995-09-14
Abstract: Il sistema di alimentazione di bobine dell'incannatoio automatico comprende una linea di restituzione delle bobine dall'incannatoio automatico che è diramata in una linea di trasporto di bobine con filato residuo ed in una linea di trasporto di bobine vuote, ciascuna linea di trasporto venendo congiunta con l'altra è collegata alla linea di scarico delle bobine vuote, ed un dispositivo per la pulitura delle bobine per rimuovere il filato residuo dalla bobina che è montato sulla linea di trasporto delle bobine con filato residuo, con ciò rendendo possibile un trasporto agevole delle bobine.
Patent IT-1257187-B (IT)
Title: Circuito di raffreddamento per motocompressore frigorifico.
IPC: F25D/
Filed: 1992-12-23
Granted: 1996-01-10
Abstract: Forma oggetto del presente trovato un circuito di raffreddamento per motocompressore frigorifico come insieme di un compressore (11c) di fluido frigorifero e di un relativo motore elettrico (11m) contenuto in un alloggiamento ermetico (8), costituito da un unico circuito chiuso di raffreddamento (12) in cui circola un liquido dielettrico di raffreddamento diverso dal fluido frigorifero. Il circuito di raffreddamento (12), che include una pompa di circolazione (13) ed un primo scambiatore (14) per il raffreddamento del liquido dielettrico, comprende vie di passaggio nel compressore (11c) almeno contenute in una camicia (15), un secondo scambiatore di calore (17) in una testata (19) del compressore (11c) ed un terzo scambiatore di calore (16) associato ad un "carter"-serbatoio di olio lubrificante (18) del compressore. (figura 3).
Patent IT-1250004-B (IT)
Title: Method for making a laser weld with esthetic effect at the joint
Inventor: DELLE PIANE ALBERTO
IPC: B23K/
Filed: 1991-09-03
Granted: 1995-03-30
Abstract: Method for making a laser weld between two metal pieces 24, 30, overlapping each other, at least one of which 30 is in the form of a sheet, at one edge of the piece in the form of a sheet 30. The method comprises the phases of: - making a welded bead 38 between the two pieces 24, 30 by a laser focusing plate 12, moving it along a stretch essentially parallel to the edge of the piece in the form of a sheet 30 and spaced away from the latter by a predetermined amount a, so as to leave a portion 40 of the piece in the form of a plate 30 between its edge and the welded bead 38, and - melting said portion 40 of the piece in the form of a sheet 30 by a second pass of the focusing head 12 along a stretch extending at said portion 40. <IMAGE>
Patent IT-1259367-B (IT)
Title: Windscreen-washer device for a vehicle
Inventor: DI GIUSTO NEVIO
IPC: B60R/
Filed: 1992-03-27
Granted: 1996-03-12
Abstract: A windscreen-washer device 1 for a vehicle 2 is described, of the type where a reciprocating arm 3 carries a windscreen wiper blade 4 and a spraying device 5 that is able to direct a jet 6 of detergent liquid 7 towards the blade 4, provided with means 11 of performing the alternating rotation of the arm 3 along an angular arc 9 of preset size, and also fitted with the means 22 to cause the spraying device 5 to rotate in a coordinated manner with the arm 3 to direct the jet 6 of liquid detergent 7 always forwards onto the windscreen wiper blade 4, with reference to the direction of rotation of the arm 3. Figures 1, 2 and 3 <IMAGE>
Patent IT-1263299-B (IT)
Title: Self-cleaning grill for canals
IPC: E02B/
Filed: 1992-07-31
Granted: 1996-08-05
Abstract: A grill for cleaning canals with reduced clearance between the mesh, characterised in that it comprises two groups of blades, moving relative to each other, which interpenetrate and form a barrier against which the debris is trapped and, thanks to the alternating movement of said two groups of blades, the first diagonally upward and the second horizontal, carried upward to the predetermined discharge point, gradually moving from the teeth of the first group of blades to the teeth of the second group; furthermore, the grill is characterised by the presence of a base having a profile complementary to that of the lower part of said first group of blades so as to prevent the passage of the debris when the group itself moves upward. <IMAGE>
Patent IT-1261542-B (IT)
Title: Intrinsically safe signal comparator device for digital signals
IPC: H03K/
Filed: 1993-04-06
Granted: 1996-05-23
Abstract: A single channel, intrinsically safe comparator CP has two single channel inputs A, B and one single channel output U. A first and a second parallel/serial converter PSA, PSB each have respectively parallel inputs A1-An, B1- Bn designed to receive the signals to be monitored in a similar way, and each has a single output line UA, UB ending at one of the two inputs of the said intrinsically safe, single channel comparator. The two parallel/serial converters are enabled by conversion command signals ACQA, ACQB synchronised with each other and with a period shorter than the number of signals to be monitored increased by 2 and divided by the period of the shortest signal to be monitored. <IMAGE>
Patent MX-168100-B (MX)
Title: Composiciones curables de organo polisiloxano
Inventor: WESTBROOK SOLOMON C
IPC: C08K5/14
Filed: 1985-09-04
Abstract: La presente invención se refiere a una composición de hule de silicón curable, caracterizada porque comprende: de 0.2 a 10 partes en peso de cuando menos un catalizador de curación de peróxido de bromobenzoílo, de la estructura: en donde n es 1 ó 2; m es 0, 1 ó 2; y de 90 a 99.8 partes en peso de un polímero de organopolisiloxano que tiene una unidad repetitiva principal: en donde R y R1 se seleccionan independientemente de h, alquilo de 1 a 4 átomos de carbono, cicloalquilo de 6 a 9 átomos de carbono y fenilo; teniendo opcionalmente el polímero unidades estructurales localizadas aleatoriamente: -RR2SiO- y -R1R3SiO- en donde R2 es fenilo y R3 es un alquenilo de 2 a 3 átomos de carbono, de manera que el grado de polimerización del polímero de organopolisiloxano esté entre alrededor de 700 a alrededor de 15,000.
Patent PT-103419-B (PT)
Title: Quadro de bicicleta reversível adaptável a diferentes configurações a partir da disposição e montagem ordenada dos componentes
Inventor: SILVA LUIS MIGUEL FERNANDES
IPC: B62K3/10
Filed: 2006-01-12
Abstract: O PRESENTE INVENTO REFERE-SE A UM QUADRO DE BICICLETA QUE PERMITE CONFIGURAÇÕES DISTINTAS MEDIANTE A SUA REVERSIBILIDADE E A DISPOSIÇÃO E MONTAGEM DOS COMPONENTES, SENDO QUE NUMA POSIÇÃO SE CARACTERIZA TRADICIONALMENTE POR UMA CONFIGURAÇÃO DE BICICLETA DENOMINADA MASCULINA, E OUTRA CONFIGURAÇÃO, DENOMINADA FEMININA. O PRESENTE INVENTO CARACTERIZA-SE POR SER UMA ESTRUTURA COM UMA TESTA (1) PARA COLOCAÇÃO DO SISTEMA DIRECCIONAL, UM CORPO CENTRAL (6), UMAS ESCORAS DE SUPORTE E FIXAÇÃO DA RODA (7, 8), DOIS ORIFÍCIOS PARA COLOCAÇÃO DO ESPIGÃO DO SELIM (2, 5) E DOIS ORIFÍCIOS PARA COLOCAÇÃO DOS APARATOS DE TRACÇÃO PEDALEIRA (4) E FIXAÇÃO DO ESPIGÃO DO SELIM (3) RECIPROCAMENTE. O PRESENTE INVENTO CONTEMPLA TAMBÉM UM APARATO EM FORMA DE CAIXA (9) MONTADO NUMA POSIÇÃO CENTRAL RELATIVAMENTE AO CORPO CENTRAL DO QUADRO (6), QUE NÃO NECESSITA DE REPOSICIONAMENTO PARA QUALQUER DAS CONFIGURAÇÕES ADOPTADAS E QUE PODERÁ SER REMOVIDO DO QUADRO, ATRAVÉS DE UM MECANISMO DE FIXAÇÃO.
Patent PT-107395-B (PT)
Title: Máquina para cortar frango assado ou outro tipo de carnes
Inventor: SILVA JORGE HUMBERTO GALRÃO DA
IPC: A22C21/00
Filed: 2014-01-09
Abstract: MÁQUINA PARA CORTAR FRANGO ASSADO OU OUTRO TIPO DE CARNES, A COMPREENDENDO UMA ESTRUTURA (1) QUE POSSUI NO SEU INTERIOR UMA COLUNA (4) LIGADA AO TOPO E À BASE DA ESTRUTURA POR UM VEIO (5) EM CADA EXTREMIDADE, NA COLUNA ESTÃO FIXADOS DOIS CASQUILHOS UM (6) NA PARTE SUPERIOR E OUTRO (7) NA PARTE INFERIOR E UM TUBO COM ENTALHE (8) ALINHADOS VERTICALMENTE PARA SUPORTE DO VEIO (9), NA EXTREMIDADE SUPERIOR DESTE VEIO (9) ESTÁ FIXADO UM SUPORTE (25), NA BASE DESTE ASSENTA O CORTANTE (26) UNIDO POR DOIS PERNES (27), DE CADA LADO DO SUPORTE (25), AOS RESPECTIVOS PERNES CURVADOS (28) DO CORTANTE, NA PARTE FRONTAL DO SUPORTE ENCONTRA-SE O TRINCO (29) QUE SOB A PRESSÃO DE UMA MOLA IMPEDE QUE O CORTANTE SE DESPRENDA, COM ESTES MEIOS DE FIXAÇÃO O OPERADOR COLOCA E RETIRA O CORTANTE (26) DE FORMA SIMPLES E RÁPIDA, BASTANDO LEVANTAR O TRINCO (29) E PUXAR PELAS PEGAS (39), ESQUERDA E DIREITA, O CORTANTE (26) É COMPOSTO POR UMA FACA CENTRAL (30) E DUAS PERPENDICULARES A ESTA (31), PODENDO TER MAIS FACAS, DEPENDENDO DO NÚMERO DE PEDAÇOS EM QUE SE PRETENDE DIVIDIR O FRANGO, NO CORTANTE ESTÁ INSERIDO UM SEPARADOR (32) COM ARMAÇÃO MÓVEL ACCIONADA POR QUATRO MOLAS (33) QUE SERVE PARA DESCOLAR AS PARTES CORTADAS DAS FACAS, EVITANDO QUE O OPERADOR RETIRE MANUALMENTE PARTES DO FRANGO AGARRADAS ÀS REFERIDAS FACAS, ASSENTE NO TAMPO (3), ZONA DE CORTE, COM A MESMA ÁREA DO CORTANTE (26) ESTÁ UMA PLACA DE CORTE (34), POSICIONADA POR QUATRO PERNES (35), ADEQUADA PARA O CONTACTO ALIMENTAR E AMOVÍVEL PARA FACILITAR A LIMPEZA. O FUNCIONAMENTO DESTE EQUIPAMENTO BASEIA-SE NA PRESSÃO EXERCIDA PELO CORTANTE (26) SOBRE O FRANGO ASSADO OU OUTRO TIPO DE CARNES EXPOSTAS SOBRE A PLACA DE CORTE (34).
Patent RO-90953-B (RO)
Inventor: CROWFORD THOMAS CHARLES
IPC: C07D405/06
Filed: 1985-03-19
Abstract: Inventia se refera la un procedeu pentru prepararea unor derivati de 2-oxindol-1-carboxamida cu formula generala I : în care x este hidrogen, fluor, clor, metil, metoxi, trifluormetil, metiltio, nitro, benzoil, acetil si 2 tenoil, Y este hidrogen, fluor, clor, metil, metoxi, metiltio, trifluormetil si fenil sau X si Y luati împreuna formeaza o grupa 5,6-metilen-dioxi sau o catena cu formula:........................
Patent TW-283145-B (TW)
IPC: A61K31/4365
Filed: 1991-12-23
Granted: 1996-08-11
Abstract: 3,4-Dihydro-6,7-dimethoxy -1-(alpha-(bis(2-(2,3,4- trimethoxyphenyl)ethyl) -carbamoyl)benzyl)isoquinoline of formula (Ia) and its salts are new. Fused-ring dihydropyridine derivs. of formula (II) and their tautomers, salts and complexes are used as cerebroprotective agents, agents for treating chronic inflammatory disorders, and anticoagulants: X = OR1, NHR2 or NR3R4; R1 = H, 1-4C alkyl or 2-4C alkoxyalkyl; R2 = (a) e.g. H, 3-6C alkenyl, or (b) e.g. 1-6C alkyl opt. substd. by e.g. halogen, CN, OH, SH, 1-4C alkoxy; R3 and R4 = 1-4C alkyl opt. substd. by Ar2 or NR3R4 is a satd. or partially satd. opt. substd. 5- or 6-membered ring, opt. contg. up to two further heteroatoms (N, O and/or S): Ar1, Ar2 and R5 = phenyl opt. substd. by e.g. halogen, 1-4C alkoxy; Het = indolyl or 5- or 6-membered opt. substd. heterocyclyl contg. 1-3 heteroatoms (N, O and/or S); A = a gp. of formula A1-A4;: R5 is e.g. H, 1-4C alkyl; R6 and R7 is H, OH or R6+R7 = O(CH2)nO; R9 = H or 1-4C alkyl; R10 = H or 2-phenyl-2-ethoxycarbonylacetyl. Cpds. (I), other than (Ia), are described in EP 37934 and 251194.
Patent TW-199120-B (TW)
IPC: B23K11/31
Filed: 1992-04-10
Granted: 1993-02-01
Abstract: The welding operation of the welding clamp 12 is controlled by a welding control cabinet 15 containing a servo-control unit 16' and an electronic switch 17. The movements of the welding clamp from one welding spot to another are determined by a robot 13 controlled by a control unit 14 provided with a servo-control unit 16. The switch 17 is controlled in such a manner that the welding operation, as well as the start of the opening and closing of the welding clamp 12 are controlled by the welding control cabinet 15 (the robot being immobile), and the movements of the welding clamp, in synchronism with its opening or its closing, are controlled by the control unit 14. <IMAGE>
Patent TW-219991-B (TW)
Title: A method for estimating appearance frequency of adjacent n character or ngram from Chinese language
Inventor: LIN CHYR-HERNG
IPC: G06F40/00
Filed: 1992-07-01
Granted: 1994-02-01
Abstract: A method for estimating appearance frequency of adjacent n character or ngram from Chinese language, which is characterized in: the method uses a sorting method to sort two adjacent character or bigram, three adjacent character or trigram as unit and to calculate the appearance frequency of adjacent n character or ngram from a segment of text without additional space on a computer disc; the method comprises of the following three steps: (1) locate all ngram of the processed text and record them in disc file; (2) sort the found ngram by big5 code on the disc; each Chinese character can be represented by two big5 byte, therefore, there are nX2 bytes to represent n ngram; (3) calculate the appearance frequency of the sorted ngram according to the order of the big5 codes in the first byte and second byte order.
Patent TW-255826-B (TW)
Title: Long acting analgesics-novel nalbuphine prodrugs pharmaceutical composition
Inventor: HWU YOW-PUU
IPC: A61K31/485
Filed: 1992-12-03
Granted: 1995-09-01
Abstract: This invention is related to novel long acting analgesic Nalbuphine prodrugs including a process for preparation, and phamaceutical composition comprising the nalbuphine prodrugs. These prodrugs are long-acting injectable analgesic when given intramuscularly, subcutaneously, intracerebroventricularly or via the mammal orally, sublingually or percutaneous, or buccally, other administration routes. The chemical structure of nalbuphine prodrugs of this invention is shown in figure (1), while R group is R'CO, R' denotes CnH2n-1 or CnH2n+1 and the carbon number is 20 to 40. The nalbuphine prodrugs were synthesized by esterification of nalbuphine base with acid chlorides or acid anhydrides of saturated fatty acids with various lengths. For therapeutic use, the prodrugs can be formulated into different dosage forms, such as oily injectables or oral preparations, etc. for spinal marrow, intramuscularly, intracerebroventricularly injection routes, upon administed orally they have less first-pass effect and better bioavailability.
Patent TW-235323-B (TW)
Title: Waterproof construction method for outer wall of underground building construction
Inventor: CHEN JENG-HUEY
IPC: E02D31/02
Filed: 1993-05-07
Granted: 1994-12-01
Abstract: A waterproof construction method for outer wall of underground buildingconstruction is that the surface of outer wall of underground buildingconstruction is pre-buried with several conduits, distributed witharrangement of proper separation distance. Several holes are located onthe proper spots of the conduit and are separated with proper distance.The pouring end is extended and protruded beyond the outer wall such thatthe waterproof materials can be poured into the pouring end of the conduit.Waterproof material can be permeated to cover the surface of the outer wallby following the holes on the conduit. In addition, the permeated materialcan pervade the cracks and rifts to form a waterproof layer.
Patent TW-229343-B (TW)
IPC: G06F13/42
Filed: 1993-12-21
Granted: 1994-09-01
Abstract: An audio visual control apparatus for communication between a master device and a slave device comprises a master AV center, at least one slave device, a digital control bus line and a transmitter. The master AV center has at least a display device and a communication processor. A minimum of one slave device is provided, having a communication processor connected to the master AV center via the digital control bus line between the two communication processors. The transmitter transmits one command and/or data in a single packet from the master AV center to the slave device and vice versa through the digital control bus line. <IMAGE>
Patent TW-245814-B (TW)
Title: Process for CMOS transistor with high voltage metal gate
Inventor: YANG SHENG-SHYONG
IPC: H01L21/335
Filed: 1994-09-17
Granted: 1995-04-21
Abstract: A process for CMOS transistor with high voltage metal gate, which is applicable to the first-type MOS transistor and the second-type MOS transistor implemented by the first-type substrate with the second-type well area, includes the following steps: 1. forming masking material on the second-type well area and the first-type substrate, and forming opening to define the lightly doped drain and source area of the first-type and second-type MOS transistor; 2. with the masking material as mask, through the opening doping the first-type dopant and the second-type dopant to the second-type well area and the first-type substrate to form the lightly doped drain and source area of the first-type and second-type MOS transistor independently; 3. forming sidewall spacer on the opening side of masking material; 4. with the opening of masking material and sidewall spacer as mask, implementing oxidization to form field oxide on the lightly doped drain and source area independently; 5. removing the field oxide, and forming trench on the lightly doped drain and source area independently; 6. with the masking material and sidewall spacer as mask, doping the first-type dopant and the second-type dopant to the lightly doped drain and source area of the first-type and second-type MOS transistor to form heavily doped drain and source area independently; 7. removing the masking material and sidewall spacer; 8. implementing oxidization, and forming isolating oxide on the heavily doped drain and source area, simultaneously forming gate oxide with thickness less than isolating oxide's between isolating oxides; 9. forming contact window on the isolating oxide; 10. forming metal gate on the gate oxide and contact metal contacted with heavily doped drain and source area through the above contact window.
Patent TW-288192-B (TW)
Title: Process for manufacturing lead frame for semiconductor package
Inventor: SANG HOON KIM
IPC: H01L23/50
Filed: 1995-10-20
Granted: 1996-10-11
Abstract: Disclosed herein is a process for manufacturing lead frame having a pad, inner leads, outer leads and dambars, the lead frame being coated with a film on back surface of the pad, which comprises the following steps of preparing a lead frame comprising a pad, inner leads and outer leads; placing a polyamic acid film on back surface of the pad without using adhesive; and thermal-compressing the polyamic acid film by using a heat generator to form polyimide film and simultaneously adhere it to back surface of the pad.
Patent TW-318288-B (TW)
IPC: H01M10/08
Filed: 1996-02-05
Granted: 1997-10-21
Abstract: A solid polymer electrolyte comprising a composite of: (a) a polymer obtainable from at least one compound which contains a structure derived from a polyhydric alcohol having three or more hydroxyl groups, at least two hydrogen atoms of said alcoholic hydroxyl groups being each replaced by a unit represented by a general formula (1): CH2=C(R<1>)C(=O)[O(CH2)x(CH(CH3))y]zNHC(=O)OR<2>- wherein R<1> represents a hydrogen or a methyl group; R<2> represents a divalent organic group containing at least one oxyalkylene group; x and y each represents a number of 0 to 5; z represents a number of 0 to 10; and (b) at least one electrolyte salt. The solid polymer electrolyte has good film strength and processability as well as high ionic conductivity, and is useful for fabricating thin electrodes, batteries and electric double layer capacitors which are free from the leakage of any solution.
Patent TW-295716-B (TW)
Title: Methods for forming a contact in a semiconductor device
Inventor: GYUNG-SU CHO
IPC: H01L21/768
Filed: 1996-03-04
Granted: 1997-01-11
Abstract: A method of forming a contact of a semiconductor device is disclosed. An insulating film and a metal oxide film having different etch rates are deposited on a semiconductor substrate. A photoresist pattern is formed so that the width thereof is the minimum line width which can be obtained using a conventional exposure equipment. When the insulating film and metal oxide film are etched using the photoresist pattern, since the etch rates are different from one another, a contact hole is formed than that is a finer than that at a conventional contact hole. Accordingly, a fine contact can be manufactured without purchasing additional equipment, and can be applied for semiconductor devices with higher integration.
Patent TW-424087-B (TW)
Title: 1,3-dihydro-1-(phenylalkenyl)-2H-imidazol-2-one derivatives
Inventor: FREYNE EDDY JEAN EDGARD
IPC: A61K31/4166
Filed: 1996-03-22
Granted: 2001-03-01
Abstract: The present invention concerns the compounds of formula the N-oxide forms, the pharmaceutically acceptable acid or base addition salts and the stereochemically isomeric forms thereof, wherein R1 and R2 each independently are hydrogen; C1-6alkyl; difluoromethyl; trifluoromethyl; C3-6cycloalkyl; a saturated 5-, 6- or 7-membered heterocycle containing one or two heteroatoms selected from oxygen, sulfur or nitrogen; indanyl; bicyclo[2.2.1]-2-heptenyl; bicyclo[2.2.1]heptanyl; C1-6alkylsulfonyl; arylsulfonyl; or substituted C1-10alkyl; R3 is hydrogen, halo or C1-6alkyloxy; R4 is hydrogen; cyano; optionally substituted C1-6alkyl; C1-6alkyloxycarbonyl or aryl; R5 is hydrogen; cyano; optionally substituted C1-6alkyl; C1-6alkyloxycarbonyl or aryl; Y is a direct bond or C1-3alkanediyl; -A-B- is a bivalent radical of formula -CR6=CR7- or -CHR6-CHR7-; L is hydrogen; optionally substituted C1-6alkyl; C1-6alkylcarbonyl; C1-6alkyloxycarbonyl; C1-6alkylsulfonyl or arylsulfonyl; aryl is optionally substituted phenyl; Het is morpholinyl or optionally substituted piperidinyl, -piperazinyl, -pyridinyl;, -furanyl or -thienyl; having PDE IV and cytokine inhibiting activity. Further, pharmaceutical compositions, preparations and use as a medicine are described.