IT1294893B1 - Sistema idraulico. - Google Patents

Sistema idraulico.

Info

Publication number: IT1294893B1
Authority: IT; Italy
Prior art keywords: hydraulic system; hydraulic
Prior art date: 1996-09-28

Application number

IT97TO000846A

Other languages

English (en)

Inventor

Carsten Christensen

Carl Christian Dixen

Original Assignee

Danfoss As

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1996-09-28

Filing date

1997-09-25

Publication date

1999-04-23

1997-09-25 Application filed by Danfoss As filed Critical Danfoss As

1999-03-25 Publication of ITTO970846A1 publication Critical patent/ITTO970846A1/it

1999-04-23 Application granted granted Critical

1999-04-23 Publication of IT1294893B1 publication Critical patent/IT1294893B1/it

Links

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
- E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/31523—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and an output member
- F15B2211/31529—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and an output member having a single pressure source and a single output member
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/31523—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and an output member
- F15B2211/31541—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and an output member having a single pressure source and multiple output members
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
- F15B2211/5059—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves using double counterbalance valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
- F15B2211/5154—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5156—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a return line and a directional control valve
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/56—Control of an upstream pressure
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/575—Pilot pressure control
- F15B2211/5756—Pilot pressure control for opening a valve
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8609—Control during or prevention of abnormal conditions the abnormal condition being cavitation
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8613—Control during or prevention of abnormal conditions the abnormal condition being oscillations

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
Fluid-Pressure Circuits (AREA)
Operation Control Of Excavators (AREA)

IT97TO000846A 1996-09-28 1997-09-25 Sistema idraulico. IT1294893B1 (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19640100A DE19640100B4 (de)	1996-09-28	1996-09-28	Hydraulisches System

Publications (2)

Publication Number	Publication Date
ITTO970846A1 ITTO970846A1 (it)	1999-03-25
IT1294893B1 true IT1294893B1 (it)	1999-04-23

Family

ID=7807295

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT97TO000846A IT1294893B1 (it)	1996-09-28	1997-09-25	Sistema idraulico.

Country Status (18)

Country	Link
US (1)	US5857331A (it)
AT (1)	AT406408B (it)
BE (1)	BE1011374A3 (it)
BR (1)	BR9704909A (it)
CA (1)	CA2214209C (it)
DE (1)	DE19640100B4 (it)
DK (1)	DK110397A (it)
ES (1)	ES2154110B1 (it)
FI (1)	FI973798A (it)
FR (1)	FR2754020B1 (it)
GB (1)	GB2317651B (it)
IE (1)	IE80721B1 (it)
IT (1)	IT1294893B1 (it)
NL (1)	NL1007143C2 (it)
NO (1)	NO974433L (it)
PT (1)	PT102053B (it)
SE (1)	SE9703279L (it)
TR (1)	TR199701049A2 (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6029445A (en) *	1999-01-20	2000-02-29	Case Corporation	Variable flow hydraulic system
EP1039255B1 (de)	1999-03-19	2003-08-27	Alstom	Dampfkraftwerk
DE19924473A1 (de)	1999-05-28	2000-11-30	Mannesmann Rexroth Ag	Hydraulischer Antrieb mit mehreren auch einen Differentialzylinder umfassenden hydraulischen Verbrauchern, insbesondere an einer Kunststoffspritzgießmaschine
GB2352275B (en) *	1999-07-17	2004-02-18	Agco Gmbh & Co	Hydraulic system for utility vehicles
ES2244517T3 (es) *	2000-07-08	2005-12-16	Bosch Rexroth Ag	Disposicion hidraulica de mano para alimentar con medio de presion preferiblemente varios receptores hidraulicos.
CN103807243B (zh) *	2014-01-21	2017-01-04	广西柳工机械股份有限公司	工程机械用电比例减压缓冲阀
CN104481944B (zh) *	2014-10-23	2016-08-24	三一汽车起重机械有限公司	降压***及工程机械
CN110374945B (zh) *	2019-07-24	2020-07-28	潍柴动力股份有限公司	一种负载敏感阀组件及负载敏感***

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE371259B (it) *	1972-10-05	1974-11-11	Tico Ab
FR2283342A1 (fr) *	1974-08-30	1976-03-26	Nisshin Sangyo Co	Dispositif de commande hydraulique multiple a compensation de pression avec distributeurs alimentes en parallele par une pompe a debit constant
DE2457451A1 (de) *	1974-12-05	1976-06-10	Bosch Gmbh Robert	Hydraulische steuereinrichtung
US4179981A (en) *	1975-10-30	1979-12-25	Poclain	Device for sequentially supplying several hydraulic motors
US3982469A (en) *	1976-01-23	1976-09-28	Caterpillar Tractor Co.	Apparatus for controlling work element operating pressures in a fluid system
JPS5635806A (en) *	1979-09-01	1981-04-08	Sanyo Kiki Kk	Compound oil pressure circuit
EP0362409B1 (en) *	1988-03-23	1992-07-22	Hitachi Construction Machinery Co., Ltd.	Hydraulic driving unit
DE4005967C2 (de) *	1990-02-26	1996-05-09	Rexroth Mannesmann Gmbh	Steueranordnung für mehrere hydraulische Verbraucher
US4977928A (en) *	1990-05-07	1990-12-18	Caterpillar Inc.	Load sensing hydraulic system
US5077972A (en) *	1990-07-03	1992-01-07	Caterpillar Inc.	Load pressure duplicating circuit
DE4036720C2 (de) *	1990-11-17	2001-09-13	Linde Ag	Steuerschaltung für die lastunabhängige Aufteilung eines Druckmittelstromes
DK167322B1 (da) *	1991-10-28	1993-10-11	Danfoss As	Hydraulisk kredsloeb
KR970011608B1 (ko) *	1994-09-06	1997-07-12	대우중공업 주식회사	건설기계의 선회토르크 제어장치(an apparatus for controlling turning torque in a construction equipment)

1996
- 1996-09-28 DE DE19640100A patent/DE19640100B4/de not_active Expired - Fee Related
1997
- 1997-08-28 CA CA002214209A patent/CA2214209C/en not_active Expired - Fee Related
- 1997-08-29 IE IE970649A patent/IE80721B1/en not_active IP Right Cessation
- 1997-09-10 SE SE9703279A patent/SE9703279L/xx not_active Application Discontinuation
- 1997-09-11 AT AT0153597A patent/AT406408B/de not_active IP Right Cessation
- 1997-09-18 GB GB9719910A patent/GB2317651B/en not_active Expired - Fee Related
- 1997-09-18 ES ES009701963A patent/ES2154110B1/es not_active Expired - Lifetime
- 1997-09-18 US US08/933,438 patent/US5857331A/en not_active Expired - Fee Related
- 1997-09-23 TR TR97/01049A patent/TR199701049A2/xx unknown
- 1997-09-24 FR FR9711885A patent/FR2754020B1/fr not_active Expired - Fee Related
- 1997-09-24 PT PT102053A patent/PT102053B/pt not_active IP Right Cessation
- 1997-09-25 DK DK110397A patent/DK110397A/da not_active Application Discontinuation
- 1997-09-25 BE BE9700778A patent/BE1011374A3/fr not_active IP Right Cessation
- 1997-09-25 NO NO974433A patent/NO974433L/no not_active Application Discontinuation
- 1997-09-25 IT IT97TO000846A patent/IT1294893B1/it active IP Right Grant
- 1997-09-26 NL NL1007143A patent/NL1007143C2/nl not_active IP Right Cessation
- 1997-09-26 FI FI973798A patent/FI973798A/fi unknown
- 1997-09-29 BR BR9704909A patent/BR9704909A/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
FI973798A0 (fi)	1997-09-26
SE9703279L (sv)	1998-03-29
TR199701049A2 (xx)	1998-04-21
US5857331A (en)	1999-01-12
ATA153597A (de)	1999-09-15
PT102053B (pt)	1999-11-30
PT102053A (pt)	1998-05-29
AT406408B (de)	2000-05-25
GB2317651B (en)	2000-03-29
SE9703279D0 (sv)	1997-09-10
NO974433L (no)	1998-03-30
ES2154110A1 (es)	2001-03-16
DE19640100A1 (de)	1998-04-09
NO974433D0 (no)	1997-09-25
CA2214209A1 (en)	1998-03-28
DE19640100B4 (de)	2005-07-14
DK110397A (da)	1998-03-29
MX9707286A (es)	1998-08-30
BR9704909A (pt)	1998-11-10
ES2154110B1 (es)	2001-10-16
GB9719910D0 (en)	1997-11-19
FI973798A (fi)	1998-03-29
NL1007143A1 (nl)	1998-03-31
ITTO970846A1 (it)	1999-03-25
GB2317651A (en)	1998-04-01
FR2754020B1 (fr)	1999-04-30
NL1007143C2 (nl)	1998-08-18
FR2754020A1 (fr)	1998-04-03
CA2214209C (en)	2000-11-21
IE970649A1 (en)	1998-04-08
IE80721B1 (en)	1998-12-30
BE1011374A3 (fr)	1999-08-03

Legal Events

Date	Code	Title	Description
1999-04-23	0001	Granted

Publication	Publication Date	Title
BR9711476B1 (pt)	2010-08-10	Sistema de adaptador.
DE69704318T2 (de)	2001-11-15	Hydraulisches betriebssystem
BR9704486B1 (pt)	2010-08-10	sistema de medição.
BR0005799B1 (pt)	2008-11-18	sistema hidrÁulico.
BR9709465A (pt)	1999-08-10	Sistema de cabeça de poço
PT876542E (pt)	2003-10-31	Sistema de sepultura
BR9708838A (pt)	1999-08-03	Sistema de extensão
IT1294893B1 (it)	1999-04-23	Sistema idraulico.
IT1303609B1 (it)	2000-11-15	Sistema dinamico termico-fotovoltaico.
DE69709173T2 (de)	2002-07-25	Belastungswalzenanordnüng.
ITTO940957A0 (it)	1994-11-25	Sistema idraulico di regolazione di una forza.
FI981128A0 (fi)	1998-05-20	Hydrauliikkajärjestelmä
ES1032239Y (es)	1996-09-01	Sistema de seguridad en la construccion.
IT1292818B1 (it)	1999-02-11	Sistema di fitodepurazione.
ITTO960067A0 (it)	1996-02-01	Sistema di controllo di passaggio.
ES1034581Y (es)	1997-06-16	Sistema de persiana.
BR9602213A (pt)	1998-09-08	Sistema de autoresgate
ES1034242Y (es)	1997-05-01	Carril electrificable.
KR980003728U (ko)	1998-03-30	복합 조작기능이 구비된 유압장치
ITBO970046A0 (it)	1997-02-05	Sistema di incernieramento.
BR7400723U (pt)	1994-10-11	Sistema de encaixe corrediço.
ES1036593Y (es)	1998-02-16	Banderilla deformable mediante sistema hidraulico.
ITRC960004A1 (it)	1997-11-20	Vergafa m.c.
BR9705595A (pt)	1999-06-29	Sistema ptb-ca-1000
BR9714938B1 (pt)	2011-12-27	sistema de localizaÇço de comunicaÇÕes.