baber/WOPTO huggingface dataset:
Patent BR-0007614-B1 (BR)
Inventor: KESSLER ERICH
IPC: B01D53/22
Filed: 2000-01-19
Abstract: Process for producing integrally asymmetrical hydrophobic polyolefinic membranes with a separation layer, in particular for gas exchange, via thermally induced liquid-liquid phase separation. A solution of at least one polyolefin in a solvent system containing a compound A and a compound B is extruded to form a shaped object. Compound A is a strong solvent and compound B a weak non-solvent for the polymer. After leaving the die, the shaped object is cooled using a solid or liquid cooling medium, which does not dissolve the polymer and does not react chemically with it, until the phase separation and solidification of the high-polymer-content phase take place. The integrally asymmetrical membrane producible in this manner has a porosity of greater than 30% to 75% by volume, a sponge-like, open-pored, microporous support layer without macrovoids and on average isotropic pores, a separation layer on at least one of its surfaces with pores <100 nm, if any, and a gas separation factor alpha(CO2/N2) of at least 1. The membrane is preferably used for blood oxygenation.
Patent BR-0117375-B1 (BR)
Inventor: RUTHER MICHAEL
IPC: C07D491/10
Filed: 2001-03-21
Abstract: Phenyl-substituted cyclic keto-enol compounds (I) are new. Phenyl-substituted cyclic keto-enol compounds of formula (I) are new. [Image] W, Z' : H, alkyl, alkenyl or alkynyl; X : alkyl, alkenyl or alkynyl; Y : H, Me, Et, isopropyl, alkenyl or alkynyl; provided that at least one of W, X, Y and Z' : at least 2C chain; CKE : cyclic keto-enol residue of formula (i)-(v); T : O, S or N(D); A : H; alkyl, alkenyl, alkoxyalkyl or alkylthioalkyl (all optionally unsaturated and optionally substituted (os) by halo); os cycloalkyl (optionally having at least one ring C replaced by a heteroatom); or aryl, aralkyl or heteroaryl (all os by halo, alkyl, haloalkyl, alkoxy, haloalkoxy, CN or NO 2); B' : H, alkyl or alkoxyalkyl, or C(A)(B') : os, saturated or unsaturated ring, optionally containing at least one heteroatom; D : H; alkyl, alkenyl, alkynyl, alkoxyalkyl or alkylthioalkyl (all os); saturated or unsaturated cycloalkyl (os and optionally having at least one ring C replaced by a heteroatom); or aryl, aralkyl, heteroaralkyl or heteroaryl, or A + D : a group completing a saturated or unsaturated ring (optionally containing at least one heteroatom and os in the A-D part); Q 1, Q 2, Q 4-Q 6H or alkyl, or A + Q 1alkanediyl or alkenediyl (both os by OH or (all os) alkyl, alkoxy, alkylthio, cycloalkyl, benzyloxy or aryl); Q 3H, alkyl, alkoxyalkyl, alkylthioalkyl, os cycloalkyl (optionally having one CH 2 replaced by O or S) or os phenyl, or C(Q 3)(Q 4) : os, saturated or unsaturated ring, optionally containing at least one heteroatom); G : H, COR 1, -C(L)MR 2, SO 2R 3, -P(L)R 4R 5, E or -C(L)NR 6R 7; E : 1 equivalent of a metal ion or an ammonium ion; L, M : O or S; R 1alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl or polyalkoxyalkyl (all os by halo); cycloalkyl (os by halo, alkyl or alkoxy and optionally interrupted by at least one heteroatom); or phenyl, phenylalkyl, heteroaryl, phenoxyalkyl or heteroaryloxyalkyl (all os); R 2alkyl, alkenyl, alkoxyalkyl or polyalkoxyalkyl (all os by halo); or cycloalkyl, phenyl or benzyl (all os); R 3-R 5alkyl, alkoxy, mono- or dialkylamino, alkylthio, alkenylthio or cycloalkylthiol (all os by halo); or phenyl, benzyl, phenoxy or phenylthio (all os); R 6, R 7H; alkyl, cycloalkyl, alkenyl, alkoxy or alkoxyalkyl (all os by halo); or phenyl or benzyl (both os), or NR 6R 7a ring (optionally interrupted by O or S). [Image] - ACTIVITY : Insecticide; acaricide; nematocide; herbicide; antifouling; fungicide; antibacterial. 3-(2,4-Dimethyl-6-ethylphenyl)-5,5-dimethyl-4-hydroxy-2-oxo-2,5-dihyd ropyrrole (Ia) at a concentration of 1000 ppm gave 100% mortality of Plutella xylostella caterpillars on cabbage leaves in 7 days. - MECHANISM OF ACTION : None given.
Patent BR-0206151-B1 (BR)
Inventor: GODICHON ALAIN FRANCOIS EMILE
IPC: F04D29/60
Filed: 2002-10-03
Abstract: A centrifugal compressor wheel including a metal hub ( 2 ) for connecting to a drive shaft ( 3 ), an inlet plate ( 4 ) and an outlet plate ( 5 ) fixed to the metal hub ( 2 ), and a plurality of blades ( 7 ), each blade having a beginning and a peripheral portion ( 7 b), fixed between the inner plate ( 4 ) and the outer plate ( 5 ). The wheel further includes an annular metal insert ( 8 ) integrated in the central portion of the wheel at a periphery of the hub ( 2 ), the annular metal insert ( 8 ) having metal elements ( 7 A) forming the beginnings of the blades of the wheel. The inlet plate ( 4 ), the outlet plate ( 5 ), and the peripheral portions ( 7 B) of the blades are made of a composite material, thereby constituting a composite portion of the wheel.
Patent BR-PI0313817-B1 (BR)
Title: direcionamento de feixe e formação de feixe para sistemas de múltiplas entradas e múltiplas saídas/múltiplas entradas e única saída (mimo/miso) de banda larga
Inventor: JAY ROD WALTON
IPC: H04B7/06
Filed: 2003-08-19
Abstract: "direcionamento de feixe e formação de feixe para sistemas de banda larga mimo/miso". são descritas técnicas para efetuar o direcionamento de feixes e a formação de feixes para transmissão de dados em um único automodo em um canal de múltiplas entradas de banda larga. em um método um vetor de direcionamento é obtido para cada uma dentre várias sub-bandas. dependendo de como são definidos os vetores de direcionamento, o direcionamento de feixe ou a formação de feixe podem ser obtidos para cada sub-banda. a potência de transmissão total é alocada para as sub-bandas com base em um esquema de alocação de potência específico (por exemplo, inversão de canal completa, inversão de canal seletiva, 'water-filling', ou uniforme). um valor de escalonamento é a seguir obtido para cada sub-banda com base na potência de transmissão alocada. os dados a serem transmitidos são codificados e modulados para prover símbolos de modulação. os símbolos de modulação a serem transmitidos através de cada sub-banda são escalonados com o valor de escalonamento da sub-banda e adicionalmente pré-condicionados com o vetor de direcionamento da sub-banda. uma corrente de símbolos pré-condicionados é a seguir formada para cada antena transmissora.
Patent BR-PI0314482-B1 (BR)
Title: método e aparelho de estimativa de capacidade de bateria
Inventor: CALIN NICOLAIE BUGNARIU
IPC: G01R31/36
Filed: 2003-09-24
Abstract: SISTEMA E MÉTODO DE ESTIMATIVA DE CAPACIDADE DE BATERIA São providenciados sistemas e métodos para uma estimativa de capacidade de bateria. Uma tabela de perfil referente à pluralidade de valores de perfil de bateria com uma pluralidade de valores de parâmetros operacionais pode ser usada; a tabela de perfil pode ser acessada para traduzir um ou mais parâmetros operacionais medidos em um ou mais correspondentes valores de perfil de bateria; um ou mais dos valores de perfil de bateria podem ser ajustados por um fator de correção para gerar um valor de perfil de bateria corrigido; a capacidade disponível da bateria pode ser calculada usando o valor de perfil de bateria corrigido; o fator de correção pode ser, então, automaticamente, calibrado, usando um valor de perfil de bateria estimado calculado a partir de um ou mais parâmetros operacionais medidos; em adição, podem ser executados os passos do método seguinte; determinar um valor de resistência de série equivalente para a bateria; determinar um valor de tensão de carga para a bateria; determinar um valor de corrente de carga para a bateria; determinar o valor de tensão não descarregado como uma função do valor de resistência de série equivalente, o valor de (...).
Patent BR-0317334-B1 (BR)
Inventor: SIEBER HELMUT
IPC: C09B67/22
Filed: 2003-12-18
Abstract: Dye mixture containing at least one dye of the formulae (1) (formula see enclosed paper copy) and at least one dye of the formulae (2) (formula see enclosed paper copy) where the substituents are each as defined in the claims. These mixtures are useful for dyeing or printing fibre materials comprising polyester and/or cellulose acetate.
Patent BR-9911275-B1 (BR)
Inventor: DANNER BERNARD
IPC: D06P1/651
Filed: 1999-06-16
Abstract: Aqueous dispersions (L) comprising: a) a wax which is (a1) a carboxyl-containing hydrocarbon wax or a mixture of such waxes or a mixture of (a1) and, (a2) at least one unmodified hydrocarbon wax; (b) a (co)poly(meth)acrylamide or (co)poly-(meth)acrylamide mixture which is (b1) at least one macro(co)poly-(meth)acrylamide, which optionally contains carboxyl-containing comonomers, having an average molecular weight <o>M</o>W = n.10<6>, where n >/= 10, or a mixture of (b1) and (b2) at least one (co)poly(meth)-acrylamide, which optionally contains carboxyl-containing comonomers, having an average molecular weight <o>M</o>W < 10.10<6>, and (d) a dispersant system consisting of amphoteric, anionic and/or nonionic surfactants, are surprisingly useful as highly effective crease mark inhibitors having an extremely surfacy effect and are also suitable for particularly short liquors, for example in winch becks and jet-dyeing machines.
Patent BR-9913743-B1 (BR)
Inventor: BELLO ALAIN
IPC: C25D11/34
Filed: 1999-09-09
Abstract: The invention concerns a steel plate coated with a metal layer based on zinc and a zinc hydroxysulphate layer, whereof the surface density of sulphur is more than 0.5 mg/m2. The invention also concerns a method for obtaining said plate by treating a zinc coated sheet metal: either in a highly alkaline sulphate solution under polarization; or in a sulphate solution containing Zn2+ ions without polarization. The hydroxysulphate deposit brings about a pre-lubricating effect applicable to operations for forming sheet metal.
Patent BR-PI9917787-B1 (BR)
Title: pestivírus csfv atenuado
Inventor: MEYERS GREGOR
IPC: A61K35/13
Filed: 1999-05-26
Abstract: esta invenção refere-se a pestivirus atenuados caracterizados pelo fato de que sua atividade enzimática presente na glicoproteina erns é inativada, processos para preparar, usar e deletar os mesmos.
Patent CH-706459-B1 (CH)
Inventor: HAMMER RALF
IPC: G02B6/36
Filed: 2013-04-24
Abstract: Die Erfindung betrifft einen Lichtwellenleiter-Verteilerschrank (1) mit in einem Gehäuse (2) angeordneten Spleissmodulen (7), wobei aus einer Anzahl von vertikal übereinander angeordneten Spleissmodulen (7) ein Spleissmodulstapel (8) ausgebildet ist. Dabei weist mindestens ein Spleissmodul (7), insbesondere jedes Spleissmodul (7), eine Drittel-Höheneinheit auf.
Patent CS-234090-B1 (CS)
Inventor: KOSCELANSKY JOZEF
IPC: B66C9/16
Filed: 1983-12-28
Abstract: Vynález se týká mostových jeřábů
a řeší pojezdovou soustavu s jedním
pevným příčníkem a jedním děleným příčníkem.
Dělený příčník má střední část a
dvě krajní části s pojezdovými koly otočně
připojené ke střední části vzájemhě
kloubově spojené spojovací tyčí, přičemž
otočné připojení je provedeno
u horní stěny střední části a spojovací
tyč- je s krajními částmi spojena pod
úrovní střední Části a pojezdová kola
jsou v krajních částech uložena na osách
s axiální vůlí, přičemž šířka mezi
nákolky je u každého z těchto pojezdových
kol větší než šířka kolejnice.
Patent CS-264756-B1 (CS)
Inventor: HELLER GERHARD ING
IPC: C07C7/09
Filed: 1984-12-20
Abstract: Způsob výroby olefinů z pyrolýzních
plynů, při němž se při primárním chlazení
a částečné kondenzaci horkých zplodin
pyrolýzy recirkuluje a chladí pyrolýzní
plynový olej a/nebo se chladí prací olej
v nejméně dvou stupních, přičemž se odebraným
teplem pyrolýzního plynového oleje
a druhého, případně dalších stupňů chlazení
pracího oleje, předehřívá procesní voda,
vstupující do systému generace procesní
páry.
Patent CS-271774-B1 (CS)
Title: Method of contact layer formation by means of controlled plasmoreactive deposition
Inventor: LIBRA MARTIN ING
IPC: H01L21/203
Filed: 1987-12-30
Abstract: The ohmic contact layer is applied on the unscreened part of the basic conductive or semi-conductive layer, which was created by atomisation or vaporescence of the metal in a gaseous working mixture formed by the carrier gas and reactive gaseous component, after gradual or jump reduction of the ratio of the reactive component in the gaseous working mixture by 1.1 to 100 times by the plasmoreactive deposition of the metal identical with the basic layer.The invention can be used in microelectronics, optoelectronics and energetics.<IMAGE>
Patent DE-2500642-B1 (DE)
Title: Adjustment for vertical alignment of sundial - uses disc fitted pivotally onto face of sundial
Inventor: BINGGESER ULRICH
IPC: G04B49/02
Filed: 1975-01-09
Abstract: The sundial has at least one approximately perpendicular face, provided with hour numerals along a given annular zone and a projecting element for casting a shadow onto the latter zone. The adjustment for vertical alignment of the sundial comprises a disc (7) defining a quarter segment of a circle, with a tongue (14) projecting at the centre of the circle and one at the bottom edge of the disc, these tongues fitting into corresponding holes in the face of the sundial in such manner as to allow the disc to pivot. The latter two holes lie on a line parallel to the centre line passing through the 12 o'clock marking on the sundial face.
Patent DE-2514227-B1 (DE)
Title: Terminal station for DC transmission - employing switchable converters with integral auxiliary supplies
Inventor: ROGOWSKY YORK DIPL-ING
IPC: H02J3/36
Filed: 1975-04-01
Abstract: The application is to converter stations having at least two converter units in series, with means for isolating either. The installation may be simplified by feeding each converter with auxiliary power, e.g. for firing circuits, from a winding on its own transformer by providing each converter with a bridging circuit (14), and a controller which sets the firing angle of the incoming bridge at 90 deg. as soon as the main switch (5) is closed and the transformer energised. In this condition effectively no current is fed into the short circuit formed by the bridging circuit (14). The bypass switch (16) is then opened and the firing adjusted until the incoming unit is carrying mean current. At this point the current through the bridging circuit is cyclic, passing through zero, and the circuit can easily be opened. normal adjustment of firing control may then follow.
Patent DE-2530388-B1 (DE)
Title: Fire retardant, electrically insulating mouldings - comprise self extinguishing polyester resin, glass and or asbestos fibre reinforcement and aluminium hydroxide
Inventor: EMICH RUPERT
IPC: H01B3/48
Filed: 1975-07-08
Abstract: Fire-retardant, electrically insulating mouldings for use in electrical equipment consists of a self-extinguishing polyester resin and fillers of glass or asbestos comprising Al(OH)3, asbestos fibre and glass fibre mat. The pref. compsns. contain 100 pts. wt. polyester resin, 5-200 pts. wt. Al(OH)3 and 5-200 pts. wt. asbestos fibre. The proportion of glass fibre used will depend principally on the mechanical loading applied to the moulding under operating conditions. Used for manufacture of arc-resistant components, insulation of adjacent cells, etc. The fire-retardant properties are exceptionally well retained under severe conditions.
Patent ES-2036133-B1 (ES)
Title: Dispositivo para anzuelos de pesca con sedal largo.
IPC: A01K91/18
Filed: 1991-09-10
Granted: 1994-04-01
Abstract: DISPOSITIVO PARA ANZUELOS DE PESCA CON SEDAL LARGO. ESTE DISPOSITIVO COMPRENDE UN TUBO PROVISTO DE RANURAS DISPUESTAS PARA ALOJAR EL BOTON O PROTUBERANCIA CONECTADO A LOS ANZUELOS, CON EL FIN DE DIRIGIR O GUIAR EL ANZUELO DE FORMA MECANICA Y COMPROBAR EL GANCHO O PUNTA DEL ANZUELO PARA DEVOLVERLE SU FORMA O ENDEREZARLO SI FUERA NECESARIO. SI EL ANZUELO ESTA DEFORMADO, LA RECTIFICACION TIENE LUGAR SOBRE UN YUNQUE ASISTIDO POR UN BRAZO/MARTILLO. ESTE DISPOSITIVO CONDUCE EL ANZUELO HACIA UN COMPARTIMENTO/CAJA QUE CONSTITUYE LA CAJA DE CEBADO DONDE SE REALIZA EFICAZMENTE EL CEBADO.
Patent ES-2068748-B1 (ES)
Title: Procedimiento para obtener perfiles compuestos para la construccion de bastidores con interrupcion de los puentes termicos.
IPC: E06B3/273
Filed: 1993-03-04
Granted: 1997-10-16
Abstract: PROCEDIMIENTO PARA OBTENER PERFILES COMPUESTOS PARA LA CONSTRUCCION DE BASTIDORES CON INTERRUPCION DE LOS PUENTES TERMICOS. COMPRENDE LAS SIGUIENTES FASES: - FORMAR UN PERFIL (20) TUBULAR CON CAVIDAD (10) INTERNA DELIMITADA POR PAREDES (1, 2, 3, 4) DE CONTORNO (51) CERRADO; - INTRODUCIR EN LA CAVIDAD (10), UN ELEMENTO LONGITUDINAL (9) TERMOAISLANTE, CON RANURAS (13, 14, 15, 16) LONGITUDINALES; - CORTAR EL PERFIL (20), A LO LARGO DE DIRECTRICES LONGITUDINALES COLOCADAS EN LAS PAREDES (1, 3) CON ESPOLONES (44) EN CORRESPONDENCIA A UNA MATRIZ (12, 11) REALIZADA EN EL ELEMENTO LONGITUDINAL (9), CON FORMACION DE ELEMENTOS (20B) DE PERFIL CON BORDES (17) DE CORTE SEPARADOS; - FORMAR UNA BIFURCACION (40) EN DICHOS BORDES; - PLEGAR LOS BORDES (17) DE CORTE EN LAS RANURAS (13, 14, 15, 16) DEL ELEMENTO LONGITUDINAL (9) DE MODO QUE SE ASOCIE LA BIFURCACION (40) CON LA RANURA (13, 14, 15, 16) INTERFIRIENDO, AL MENOS, UNA PARED (42A, 42B), ENGANCHANDO DE MODO ESTABLE LOS ELEMENTOS (20B) DE PERFIL AL ELEMENTO LONGITUDINAL (9).
Patent ES-2079278-B1 (ES)
Inventor: HERMES STAFAN
IPC: A43B13/14
Filed: 1993-08-27
Granted: 1996-08-01
Abstract: The front part of the upper shoe comprises a sheet and partic. a front cap. The sheet (12) is of a soft, flexible, highly expandable, and at least water-repellant material. The sheet comprises a bearer coated with polyurethane, the bearer being a textile weave. The material of the sheet has a specific total wt. of approximately 250 g/m2, whilst the polyurethane content with approximately 62 g/m2 amounts to approximately 25 wt.%. The bearer can consist of a combination of a polyethylene weave with a proportion of approximately 150 g/m2 and an elastane weave with a proportion of pref. approximately 38 g/m2. The sheet (12) is an area of a closure (16) has a tongue (18) softly cushioned on the inside. The shoe sole (5) comprises at least partly a buffer with shock-absorbing effect at high elastic spring-back. USE/ADVANTAGE - As a semi-orthopaedic and/or orthopaedic therapy shoe. It has a soft, flexible and expandable upper and elastic buffer material sole.
Patent ES-2128958-B1 (ES)
Title: Procedimiento de control de potencia en cocinas de induccion alimentadas mediante inversores multipuente reconfigurables.
Inventor: GARCIA MARTINEZ JOSE ANDRES
IPC: H05B6/06
Filed: 1996-11-21
Granted: 2000-01-16
Abstract: Procedimiento de control de potencia en cocinas de inducción alimentadas mediante inversores multipuente reconfigurables. Gobierna la alimentación de dos bobinas (B1 y B2) actuando conmutadores (R1, R2) y dispositivos de potencia (S1-S6) para alimentar independientemente a una de las cargas, o para alimentar a las dos cargas. En primer lugar actúa sobre los conmutadores (R1) y/o (R2) para determinar que bobina (B1, B2) se alimenta. Seguidamente actúa sobre (S1-S6) para dar la potencia a la bobina (B1, B2). Permite efectuar calentamiento ultrarrápido de una sola de las bobinas mediante un control de inversión de tensión controlado en corriente. Si una única bobina demanda una potencia comprendida entre una potencia mínima (PF) y la nominal, realiza un control de cancelación de tensión controlada en corriente. Si ambas bobinas demandan a la vez una potencia comprendida entre (PF) y la potencia nominal realiza un control de cancelación de tensión controlado en corriente, alimentándolas simultáneamente. En todos los casos cuando una bobina demanda una potencia inferior a (PF) realiza sobre ésta control de energía.
Patent ES-2156461-B1 (ES)
Title: Procedimiento de termodegradacion de los materiales de los residuos.
Inventor: ARNOULT THIERRY
IPC: F23G5/02
Filed: 1997-01-29
Granted: 2002-02-01
Abstract: Proceso de termodegradación de los materiales de los residuos, materiales de origen o de constitución orgánica, desarrollado mediante la puesta en marcha de un conjunto de dispositivos que funcionan en cascada, y de los que algunos pueden ser puestos fuera de servicio opcionalmente, y cuya constitución y vinculaciones aseguran una total ausencia de combustión, una estanqueidad total del tratamiento y que garantizan la ausencia total de residuos contaminantes para el medio ambiente.
Patent ES-2153316-B1 (ES)
Title: Medios de obscurecimiento progresivo de vidrios dobles.
Inventor: SANCHEZ JIMENEZ MANUEL
IPC: G02F1/1347
Filed: 1999-02-26
Granted: 2001-09-01
Abstract: Medios de obscurecimiento progresivo de vidrios dobles. Dispone de dos filtros polarizados linealmente (1) y (2), en franjas (1.1) y (2.1) consecutivas, dispuestas alternas las polarizadas en un sentido con otras polarizadas en el contrario y ocupando superficies complementarias de dos vidrios (3) y (4) dispuestos paralelos y a los que se adhieren estas franjas por medios convencionales, de modo que uno de estos vidrios (3) o (4) se constituye móvil respecto del otro, por cualquier medio, manual o mecánico, de accionamiento eléctrico o electrónico.
Patent FR-2802835-B1 (FR)
Inventor: SUNDHOLM GORAN
IPC: B05B7/04
Filed: 2000-02-21
Granted: 2006-12-01
Abstract: A spray head for producing a liquid mist and preferably for extinguishing fire, the spray head comprising a frame (1,...), an inlet (2,...) and a passage (7,...) leading to at least one nozzle (6,...) with an opening (3,...) including a first boring (4,...) and a second boring (5,...), the first boring (4,...) comprising a first diameter (d) and the second boring (5,...) a second diameter (D), characterized by a combination in which: the first boring (4,...) has a diameter (d) that is 0.1 to 0.9 times the diameter (D) of the second boring (5,...), the length (s) of the first boring (4,...) is 0.25 to 15 times the diameter (D) of the first boring (4,...), the length (s) of the second boring (5,...) is approximately 1 to 15 times the diameter (D) of the second boring (5,...), and the first boring (4,...) and the second boring (5,...) are at least essentially aligned and the frame (1,...) comprising a main channel (7,...) from which said nozzle (6,...) diverges at an angle from the main channel (7,...) so that flow of medium along the first boring (4,...) and the second boring (5,...) is at an angle in relation to the general flow in the main channel (7,...).
Patent FR-2810375-B1 (FR)
Inventor: HOUZE FRANCOIS
IPC: F04C29/04
Filed: 2000-06-15
Granted: 2002-11-29
Abstract: The invention concerns a vacuum generating device wherein the vacuum pump body (1) comprises cavities forming regulating chambers (12), closed at their ends by closure means such as sealing plugs (26, 27), and run through by an exchange pipe (14) wherein flows a liquid coolant coming from a heat source. The regulating chamber (12) is connected by a pipe wherein thermal conduction liquid (16) flows to a reserve of thermal conduction liquid (17) which through a piston (18) stressed by an actuator (19), adjusts the upper level (22) of a thermal conduction liquid (15) in the regulating chamber (12), thereby modifying the thermal conductance between the pump body (1) and the liquid coolant flowing in the exchange pipe (14). Thus the risk of scale deposit is reduced in the exchange pipe (14) of a vacuum pump (1), while controlling the temperature of the pump body (1).