baber/WOPTO huggingface dataset:
Patent PT-101526-A (PT)
Title: Quality control appts. for monitoring soldering - comprising processor, display, interface, keyboard, signal interface, and sensors, permitting efficient, real-time monitoring
Inventor: SANTOS JOSE FRANCISCO DE OLIVE
IPC: B23K11/25
Filed: 1994-06-03
Abstract: A quality control appts. which monitors a selection of factors in soldering processes in laboratory or industrial conditions, consists of a processor (1), a display (2), an interface (3), a keyboard (4), a signal interface (5), and sensors (6-9). In the case of deviation beyond acceptable levels of pre-programmed parameters, an alarm is sounded, permitting adjustment.
Patent PT-104076-A (PT)
Title: Processo de refinamento de grão de elementos metálicos por alteração da trajectória de carga
Inventor: GRACIO JOSE JOAQUIM DE ALMEIDA
IPC: B21J5/00
Filed: 2008-05-28
Abstract: A PRODUÇÃO DE ELEMENTOS METÁLICOS, NOMEADAMENTE CHAPAS METÁLICAS, COM ELEVADA RESISTÊNCIA MECÂNICA E FORMABILIDADE É, ACTUALMENTE, UM DOS MAIORES DESAFIOS LANÇADOS PELAS INDÚSTRIAS AUTOMÓVEL, AEROESPACIAL E ALIMENTAR. A PRESENTE INVENÇÃO DIZ RESPEITO A UM NOVO PROCESSO DE CONFORMAÇÃO PLÁSTICA QUE PERMITE, ATRAVÉS DA ALTERAÇÃO DA TRAJECTÓRIA DE CARGA, A PRODUÇÃO DE CHAPAS METÁLICAS COM UM TAMANHO DE GRÃO DE 1/2 MICRON E, CONSEQUENTEMENTE, COM UMA TENSÃO LIMITE DE ELASTICIDADE 3 A 4 VEZES SUPERIOR À OBTIDA, POR EXEMPLO, APÓS LAMINAGEM CONVENCIONAL, MANTENDO INALTERADA A FORMABILIDADE. O PROCESSO É DE FÁCIL INDUSTRIALIZAÇÃO E A SUA OPTIMIZAÇÃO REQUER APENAS DOIS PARÂMETROS OPERATÓRIOS QUE CARACTERIZAM A TAXA DE REDUÇÃO DE ESPESSURA VERSUS/DEFORMAÇÃO DE CORTE E A AMPLITUDE DE INVERSÃO DE CARGA.
Patent PT-104357-A (PT)
Title: Sistema actuador para controlo activo e autënomo da temperatura no interior do calãado
Inventor: SILVA RICARDO JORGE ANDRADE MOREIRA DA
IPC: A43B3/35
Filed: 2009-01-26
Abstract: O PRESENTE INVENTO REFERE-SE A UM SISTEMA ACTUADOR PARA CONTROLO E TERMO-REGULAÃO DA TEMPERATURA NO INTERIOR DO CALÃADO EM INTERVALOS DE CONFORTO ESTABELECIDOS PELO UTILIZADOR. ESTE SISTEMA é CONSTITUDO PELA CONJUGAÃO DE UM CIRCUITO ELECTRËNICO, BATERIA RECARREGáVEL E MËDULOS TERMOELéCTRICOS INCORPORADOS NUMA PALMILHA DE ESTRUTURA MULTI-CAMADA CONDUTIVA-ISOLANTE-CONDUTIVA, CUJO CONJUNTO ASSEGURA A MONITORIZAÃO E O CONTROLO DA TEMPERATURA NO INTERIOR DO CALÃADO, A GESTO DA ENERGIA GERADA/ACUMULADA NECESSáRIA PARA PRODUZIR O AQUECIMENTO/ARREFECIMENTO DA PALMILHA E GARANTIR A ESTABILIDADE DA TEMPERATURA NO INTERIOR DO CALÃADO.
Patent PT-105303-A (PT)
Title: Difusor de luz de fluxo orientado
Inventor: CARVALHO JOAO PAULO PEREIRA DE
IPC: F21V7/00
Filed: 2010-09-21
Abstract: O PRESENTE INVENTO DIZ RESPEITO A LUMINÁRIAS CUJA FONTE DE LUZ TEM DIMENSÕES REDUZIDAS, TIPICAMENTE CONSTITUÍDA POR UM OU VÁRIOS LEDS. A PRESENTE INVENÇÃO CONSISTE NUM DIFUSOR DE LUZ DE FLUXO ORIENTADO QUE É CONSTITUÍDO POR UM CONJUNTO (UM MÓDULO) DE LENTES (7) PARA ILUMINAÇÃO A LED (3), POR UM SUPORTE ESPECIAL (5) (CAIXA PARA REFLECTOR) QUE CONTÉM UM REFLECTOR (8), E POR UMA BASE (6) QUE PODERÁ SERVIR PARA FIXAÇÃO A UM SUPORTE (QUE PODE SER O PCB (4) ONDE ESTÃO MONTADOS OS LEDS), CONSTITUINDO UMA PEÇA ÚNICA. COM ESTA INVENÇÃO CONSEGUE-SE UM CONTROLO PRECISO DO FLUXO LUMINOSO DE MODO A ILUMINAR APENAS, E DE FORMA CONTROLADA, SÓ AS ÁREAS PRETENDIDAS EM CADA APLICAÇÃO. NUMA DETERMINADA CAIXA (5) PARA REFLECTOR PODE SER COLOCADO UM DE VÁRIOS REFLECTORES DIFERENTES (PARA SE OBTEREM EFEITOS ESPECÍFICOS PRÓPRIOS DE CADA REFLECTOR) E UM DETERMINADO REFLECTOR PODE SER USADO EM DIFUSORES DE LUZ DIFERENTES.
Patent PT-107790-A (PT)
Title: Aparelho doseador com detector de nível
Inventor: DOMINGUES HENRIQUE PAULO GOMES DA SILVA
Filed: 2014-07-18
Abstract: APARELHO DOSEADOR COM DETECTOR DE NÍVEL DESTINADO A DOSEAR ADITIVOS LÍQUIDOS, UTILIZANDO BOMBAS DOSEADORAS DE SOLENÓIDE OU OUTRAS, COM NÚCLEO DE PISTON, SENDO ESPECIALMENTE APLICÁVEL EM MÁQUINAS DE LAVAR ROUPA, PERMITINDO BOMBEAR O ADITIVO, MEDIANTE UM PERÍODO DE TEMPO PRÉ-DETERMINADO, AUTOMÁTICA E GRADUALMENTE, DOSEANDO A QUANTIDADE NECESSÁRIA A OPTIMIZAR A LAVAGEM, PODENDO SER DIRECTAMENTE INSERIDO NO RECIPIENTE QUE CONTÉM O ADITIVO LIQUIDO, NA SUA PARTE SUPERIOR, TAMBÉM DESIGNADA CAIXA (2), ONDE É COLOCADA A BOMBA DOSEADORA SOLENÓIDE OU OUTRA COM NÚCLEO DE PISTON (11) OS CABOS ELÉCTRICOS (10) E A LIGACÃO TERRA (7), O DITO TUBO (1) É PERFURADO DE FORMA A PERMITIR A CIRCULAÇÃO DO AR NO SEU INTERIOR E COMPORTA CABOS ELÉCTRICOS (10), UMA SONDA DE NÍVEL (4)E UM TUBO DE ASPIRAÇÃO (5) FIXOS NUM SUPORTE (8), CUJA FUNÇÃO É FIXAR E GUIAR A SONDA DE NÍVEL (4) E O TUBO DE ASPIRAÇÃO (5), NA CAIXA (2) ESTÁ FIXADA UMA PEÇA LONGITUDINAL, COM A FINALIDADE DE SUPORTAR A DITA BOMBA (11) E DE MANTÊ-LA NA POSIÇÃO ADEQUADA, A CAIXA (2) POSSUI ABERTURAS NA PARTE FRONTAL E NA PARTE SUPERIOR, PODENDO A DITA BOMBA (11) SER POR AÍ INTRODUZIDA, POSSUI, TAMBÉM, UMA TAMPA DE SUPORTE AMOVÍVEL (3)QUE AO SER FECHADA PERMITE QUE A DITA BOMBA (11) SEJA COMPRIMIDA CONTRA A CAIXA (2), REFORÇANDO A SUA IMOBILIDADE, OS CABOS ELÉCTRICOS (10) SÃO LIGADOS DIRECTAMENTE À BOMBA (11).
Patent PT-117309-A (PT)
Title: Sistema integrado de biorreator e processo de controlo, aprendizagem e monitorização da cultura celular utilizando o mesmo
Inventor: PAULA CRISTINA RODRIGUES PASCOAL FARIA
IPC: C12M1/34
Filed: 2021-06-29
Abstract: A PRESENTE INVENÇÃO DESCREVE UM SISTEMA INTEGRADO DE BIORREATOR (1), QUE COMPREENDE UMA COMPONENTE EXTERNA (2), UMA COMPONENTE INTERNA (3) E UMA ESTRUTURA DE SUPORTE (4) QUE COMPREENDE UMA PLATAFORMA COMPUTACIONAL DE CONTROLO, APRENDIZAGEM E OTIMIZAÇÃO DA APLICAÇÃO DE ESTÍMULOS. A PRESENTE INVENÇÃO AINDA DESCREVE UM PROCESSO DE CONTROLO, APRENDIZAGEM E MONITORIZAÇÃO DA CULTURA CELULAR UTILIZANDO O REFERIDO SISTEMA INTEGRADO DE BIORREATOR (1), QUE PERMITE A OTIMIZAÇÃO DA APLICAÇÃO DE DIFERENTES ESTÍMULOS EM CÉLULAS COLOCADAS EM MODELOS TRIDIMENSIONAIS (3436) ALOCADOS NA COMPONENTE INTERNA (3), DE FORMA A MIMETIZAR AS CONDIÇÕES NATIVAS DO TECIDO BIOLÓGICO. ESTA INVENÇÃO RESOLVE OS PROBLEMAS REFERENTES À NECESSIDADE DE OTIMIZAR, CONTROLAR E MONITORIZAR, EM TEMPO REAL, OS PARÂMETROS ENVOLVIDOS NA ESTIMULAÇÃO DE DIFERENTES CÉLULAS EM APLICAÇÕES DA ENGENHARIA DE TECIDOS REDUZINDO, ASSIM, O TEMPO ENVOLVIDO EM PROCESSOS DE DIFERENCIAÇÃO E / OU PROLIFERAÇÃO, PARAMETRIZÁVEIS PARA DIFERENTES LINHAS CELULARES
Patent RU-94008626-A (RU)
Inventor: ALJAEV A N
IPC: B63B35/00
Filed: 1994-03-10
Abstract: FIELD: shipbuilding; special-purpose water craft; raising and pilotage of vessels in shallow waters of rivers and water-development works. SUBSTANCE: water craft is provided with parallel hulls equipped with compressed air system. Hulls are not tight. Hulls are made in form of semiccylinders closed at ends, with their open portion downward. Semi-cylinders are interconnected by means of parts belonging to compressed air system. EFFECT: enhanced efficiency due to increased lifting force of device at simultaneous reduction of expenses, labour consumption and time.
Patent RU-94029794-A (RU)
Inventor: KAZACHKOV M V
IPC: A47K10/22
Filed: 1994-08-09
Abstract: FIELD: paper roll holders. SUBSTANCE: roll holder has a bracket made in the form of two parallel arranged arms with an axle and pressure strip acting on the paper roll secured between them; the axle has an additional detachable extension piece, having a sharp cone and a recess suiting the axle stepped end on the opposite side. EFFECT: enhanced convenience in use, facilitated passage of the axle through the roll of toilet paper. 2 dwg
Patent RU-94030344-A (RU)
Inventor: TAVLYBAEV F N
IPC: B23P6/00
Filed: 1994-08-11
Abstract: FIELD: mechanical engineering; repair of aluminium alloy pistons for internal combustion engines. SUBSTANCE: when restoring width of worn-out piston ring grooves, special processing groove is made in land between two piston ring grooves and processing lands are shifted. EFFECT: increased service life of pistons restored by this method.
Patent RU-94032685-A (RU)
Inventor: PONOMAREV G D
IPC: A47B31/00
Filed: 1994-09-08
Abstract: FIELD: public catering enterprise equipment. SUBSTANCE: gastronomic table-tray has base formed as multi-tier cascade-type construction. Telescopic bar mounted on base is provided with cells made along telescopic bar height and adapted for receiving different dishes. Trays are mounted on bar for rotation in both directions. Table-tray has lamp, independent supply unit and switch button. EFFECT: increased efficiency and provision for convenient servicing. 2 dwg
Patent RU-94038271-A (RU)
Inventor: GOLOVINA N P
IPC: C12N1/14
Filed: 1994-09-21
Abstract: FIELD: veterinary science. SUBSTANCE: vaccine involves mixture of antigens from fungus cultures Trichophyton equinum, strain L-2251/70 (USSR), strain Microsporum canis N 473 taken at equal ratio with addition of protective drying medium consisting of gelatin and sucrose. Vaccine is used as prophylaxis and curative agent against trichophytosis and microsporia in horses, intramuscularly, two doses at interval for 10-14 days. Vaccine provides the expressing and long immunity in horses against these diseases. EFFECT: enhanced effectiveness of vaccine.
Patent RU-95100212-A (RU)
Inventor: BARKOVSKIJ JU M
IPC: G01K11/02
Filed: 1995-01-10
Abstract: FIELD: measuring technology; invention is related to field of temperature measurement, namely, to equipment for measuring temperature with correction of nonlinearity of resistance thermoconverter and changes of ambient temperature of communication line. SUBSTANCE: device comprises source of electric energy and summing amplifier of two voltages with feedback circuit coupling its output to input of source of electric energy. Noninverting input gain factor is twice as high as that of inverting input. EFFECT: simplified design, increased measuring precision using both copper and platinum resistance thermoconverters.
Patent RU-95100468-A (RU)
Title: Thermal tube
Inventor: CHUVASHEV V A
IPC: F28D15/02
Filed: 1995-01-11
Abstract: FIELD: thermal tubes; heating systems. SUBSTANCE: thermal tube is partially filled with heat-transfer agent (water, for example) and is provided with hermetic evacuated housing with evaporation and condensation zones. Housing is made from dielectric material with protective casing 5 embracing the housing on outside. At the end of housing in evaporation zone there is base where twin electrodes are secured. Electrodes are made in form of coaxial tubes located along axis of housing or in form of plates mounted in parallel with axis of housing or plates mounted in holders perpendicularly to axis of housing. Housing is closed with sealing plug at its end in evaporation zone. Plug is fitted in course of evacuation of housing. Container may be mounted on it. Thermal tube of one version has housing made from metal and coated with dielectric envelope on the outside; in this case, housing is used as one of electrodes. Second electrode in this version is made in form of central rod located along axis of housing. Electrodes are connected to AC source. EFFECT: enhanced operational and economical efficiency; simplified construction; facilitated manufacture and high safety. 4 dwg
Patent RU-95101088-A (RU)
Inventor: PROTASOV B I
IPC: A01K67/00
Filed: 1995-01-26
Abstract: FIELD: agricultural production industry. SUBSTANCE: proposed according to method is use of decoction of eleuterrocock roots. Addition of this preparation into feed during twenty days in optimal dose in critical period of hen life causes shortening of period before start of egg-laying by 7-16 days, improves egg-laying productivity by 10-22 eggs for 8 months of egg-laying period, reduces loss and forced slaughter of hens. EFFECT: high efficiency.
Patent RU-95102363-A (RU)
Inventor: NIKOLAJCHUK A P
IPC: B64B1/62
Filed: 1995-02-17
Abstract: FIELD: control of aerostatic lift force, motion in horizontal plane and orientation relative to cardinal points. SUBSTANCE: envelope 1 consists of pneumatic beams 2 whose inner cavities are connected with outlet of fan 6 of gas state changing device 5 which feeds warm air from envelope 1, air from atmosphere or light gas from bottle 10 to pneumatic beams 2. As a result, beams are inflated. Length of envelope 1 in cross section is reduced; its inner volume is reduced as well. Aerostatic lift force is reduced and aerostat starts descending. To increase aerostatic lift force, supply of gas to pneumatic beams is discontinued, envelope takes its initial form of maximum volume and aerostat starts ascending. When not all pneumatic beams are filled with gas, envelope 1 takes asymmetric shape due to which aerodynamic lift force is created or aerostat is turned. EFFECT: enhanced reliability.
Patent RU-95113143-A (RU)
Inventor: ZHAN-IV AMBLJAR
IPC: H01H71/24
Filed: 1995-07-17
Abstract: FIELD: electrical engineering. SUBSTANCE: drive has electromagnetic member 7, movable member 8 secured for rotation around hinge joint 21, fixed contact 3, movable contact supporting lever 5 secured for rotation around hinge joint 22 and switching mechanism 9, formed by the stretched member located between movable member 8 and movable contact supporting lever 5. Hinge joint 21 of movable member 8 and hinge joint 22 of movable contact supporting lever 5 are positioned on the same side relative to electromagnetic member 7, and switching mechanism 9 is connected to movable member 8 in the intermediate point between hinge joint 21 of movable member 8 and end area 26 of movable member 8, at whose level magnetic attraction to electromagnetic member 7 is accomplished. EFFECT: improved design.
Patent RU-95116287-A (RU)
Inventor: PERREGAARD DZHENS KRISTIAN
IPC: A61K31/34
Filed: 1993-12-08
Abstract: FIELD: medicine. SUBSTANCE: compound having general formula (I) wherein one of X or Y isand the other is CH, O, or S: CHis aliphatic hydrocarbon group, arylalkyl, acyl, sulfonyl, carbonate or Rwherein RRNCO and Rare selected from hydrogen and hydrocarbon; Ris hydrogen or hydrocarbon; Rare independently selected from hydrogen, halogen, alkyl, alkoxy, alkylthio, hydroxy, alkyl sulfonyl, cyano, trifluoromethyl, cycloalkyl or nitro; R-Rand Rare both hydrogen or lower alkyl or they are bonded together to from carbocyclic cycle; Rand Rare independently hydrogen, hydrocarbon or group 1a wherein Ris hydrogen or hydrocarbon; W is O or S, and r is 2-6; Rand Rare bonded to form alkenyl. Compound produces effect on central recaptors 5-Rand is useful for treatment of psychosis, troubled states, depressions, controllable disorders, alcohol abuse, aggression, ischemic diseases, side effects caused by generally accepted antipsychotic agents or cardiovascular disorders. EFFECT: improved properties.
Patent TW-200303720-A (TW)
Title: A raceway for cultivating aquatic organisms
Inventor: MCVEIGH PAUL
IPC: A01K61/60
Filed: 2002-11-14
Abstract: A floatable raceway for cultivating fish comprising a partially submersible tank (2) for containing fish having a base (5), opposing sidewalls (6), a gate assembly (8) having removable gates (10, 11) at a water discharge end of the tank (2) having a ramp (9) extending downwardly to the base (5) and towards the gate assembly (8), The raceway (1) also includes floats (3) extending the lengths of the sidewalls (6) for keeping a top of the tank (2) above water level, an airlift assembly (4) connectable to an air supply for introducing oxygenated water to the tank (2) at the water intake end, and a baffle (14) for directing the flow of water through the tank (2) along the base (5), The raceway (1) has a pair of screen gates (10 ) allowing the movement of fish wastes therethrough and a pair of stop gates (11) for substantially preventing water from discharging from the tank (2).
Patent TW-200410541-A (TW)
Title: A communication terminal
Inventor: KRAFT CHRISTIANQ
IPC: H04M1/02
Filed: 2002-12-09
Abstract: A communication terminal having a user interface, and comprising a controller unit controlling said user interface, a first and a second operation key whose operation is controlled by the controller unit, and display. The communication terminal being capable of assuming a plurality of states in which the groups of predetermined operations that may be performed by pressing said operation key are defined by the controller unit in said plurality of states. The first operation key is dedicated by the controller unit to perform on operation from said group of operations as a default function dependence of the state assumed by the communication terminal, and the display has first area solely dedicated for displaying the present operation performed when pressing said first operation key. The second operation key being dedicated by the controller unit to give access to said group of operations being available in the state assumed by the communication terminal. A scroll allowing the user to scroll between operations included in said group of operations available for said second operation key. The user selects a highlighted operation by pressing a selection key.
Patent TW-200409986-A (TW)
Title: Ferrule and its manufacturing method
Inventor: KONO YOSHINARI
IPC: G02B6/38
Filed: 2002-12-11
Abstract: The invention provides ferrules of various lengths while axial reference of optical fibers is maintained. A plurality of ferrule comprising members 30, which have one or more minute holes 31 for optical fibers 4 to be inserted, are connected to each other along the inserting direction of the optical fibers 4.
Patent TW-200411549-A (TW)
Title: Collaborative BIOS driving execution method
Inventor: KUO JIA-SHIUNG
IPC: G06F9/44
Filed: 2002-12-27
Abstract: The present invention provides a collaborative BIOS driving execution method, which is to further add one segment of collaborative program codes in the Basic Input/Output System (BIOS) of the conventional system power-on image, so as to conduct the collaborative operation for accessing the peripheral access signal of BIOS during the power-on stage in the system. The major technique means is to copy and move the peripheral program procedures simultaneously executing, and possibly causing abnormal execution of BIOS and shutdown to the memory corresponding to the peripheral chip set for driving and execution. The present method can reduce the possibility of conflict occurred in the communication process for each thread and achieve the purpose of collaborating the driving execution.
Patent TW-200308178-A (TW)
Title: Organic electroluminescent device
Inventor: CHUNG JIN-KOO
IPC: G09F9/30
Filed: 2002-12-31
Abstract: Disclosed is an organic electroluminescent (EL) device for enhancing the luminous efficiency. A first electrode is formed on a substrate. A CVD insulating film of low dielectric constant having an opening exposing the first electrode is formed on the first electrode and the substrate. An organic EL layer and a second electrode are sequentially stacked on the opening. A wall surrounding a region of the organic EL layer is formed of the CVD insulating film of low dielectric constant, the surface treatment of the pixel electrode can be performed using O2 plasma to thereby enhance luminance properties.
Patent TW-200411885-A (TW)
Title: High-frequency substrate
Inventor: WU SUNG-MAO
IPC: H01P3/08
Filed: 2002-12-31
Abstract: A high-frequency substrate at least includes a metal layer, a dielectric layer and a high-frequency signal transmission line. The dielectric layer is formed on the metal layer. The dielectric layer includes a dense structure and a number of closed apertures. Theses closed apertures are stuffed with a material. Because the dielectric constant of the material is smaller than the dielectric constant of the dense structure, the entire dielectric constant of the dielectric layer is smaller than the dielectric constant of the dense structure. It will speed up the transmission rate of the signal in the high-frequency signal transmission line when the high-frequency signal transmission line is deposited on the dielectric later. Therefore, the energy loss of the signal will be reduced and the transmission quality of the signal will be improved.
Patent TW-200308052-A (TW)
Title: Through contact and method of manufacturing the same
Inventor: KOLLER KLAUS
IPC: H01L23/522
Filed: 2003-01-16
Abstract: A method of manufacturing a through contact (34) for establishing a conductive connection between a first conductor (18) and a second conductor (10) is presented. To begin with, an insulation layer (56) is provided, which comprises a first main side and a second main side (59) opposed to the first one, the first conductor (18) being formed on the first main side such that it extends up to and into a contact area (74), and a trench (66) extending up to said contact area (74) being formed in the second main side (59) for said second conductor (10). Following this, said contact area (74) has formed therein a contact opening (76) which extends from the second main side (59) to the first conductor (18) and into which the trench (66) terminates. Finally, the contact opening (76) is filled with a conductive material (78) so as to produce the through contact (34) and the second conductor (10) in the contact area (74) so that the width of the second conductor (10) in the contact area (74) is adapted in a self-adjusting manner to the size of the through contact (34).
Patent TW-200302281-A (TW)
Title: Phospholipid bodies and use thereof in medical treatment
Inventor: BOLTON ANTHONY E
IPC: A61K47/48
Filed: 2003-01-21
Abstract: This invention relates to synthetic and semi-synthetic compositions having biological activity, and to the uses thereof in the treatment and/or prophylaxis of various disorders in mammalian patients. More particularly it relates to preparation and use of synthetic and semi-synthetic bodies, which after introduction into the body of a patient, produce beneficial anti-inflammatory, organ protective and immune regulatory effects. The invention also relates to treatments and compositions for alleviating inflammatory and autoimmune diseases and their symptoms.
Patent TW-200302335-A (TW)
Title: Freezing device
Inventor: SAKAE SATORU
IPC: F25B1/10
Filed: 2003-01-22
Abstract: A Freezing device comprising three compressors (2A, 2B, 2C) and two systems of utilization-side heat exchangers (41), (45, 51) is arranged so that the first compressor (2A) is used exclusively for the utilization-side heat exchangers (45, 51) of the first-system-side circuit while the third compressor (2C) is used exclusively for the utilization-side heat exchanger (41) of the second-system-side circuit and on the other hand, second compressor (2B) is used by switching between the utilization-side heat exchangers (45, 51) of the first-system-side circuit and the utilization-side heat exchanger (41) of the second-system-side circuit, whereby the arrangement of the suction-side piping is simplified and so is the operation control.