GB8804722D0 - Operating device for piston of double acting cylinder - Google Patents
Operating device for piston of double acting cylinderInfo
- Publication number
- GB8804722D0 GB8804722D0 GB888804722A GB8804722A GB8804722D0 GB 8804722 D0 GB8804722 D0 GB 8804722D0 GB 888804722 A GB888804722 A GB 888804722A GB 8804722 A GB8804722 A GB 8804722A GB 8804722 D0 GB8804722 D0 GB 8804722D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- operating device
- double acting
- acting cylinder
- double
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
-
- 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
- F15B11/046—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member
- F15B11/048—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member with deceleration control
-
- 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
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-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
- F15B2211/315—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
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/365—Directional control combined with flow control and pressure control
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple 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
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/40—Flow control
- F15B2211/46—Control of flow in the return line, i.e. meter-out control
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6653—Pressure control
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6654—Flow rate control
-
- 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
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/72—Output members, e.g. hydraulic motors or cylinders or control therefor having locking means
-
- 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
- F15B2211/755—Control of acceleration or deceleration of the output member
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3708989A DE3708989C2 (en) | 1987-03-19 | 1987-03-19 | Control device for a piston displaceable in a double-acting cylinder |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8804722D0 true GB8804722D0 (en) | 1988-03-30 |
GB2203195A GB2203195A (en) | 1988-10-12 |
GB2203195B GB2203195B (en) | 1991-04-10 |
Family
ID=6323490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8804722A Expired - Lifetime GB2203195B (en) | 1987-03-19 | 1988-02-29 | An operating device for the piston of a double acting cylinder |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS63254203A (en) |
DE (1) | DE3708989C2 (en) |
GB (1) | GB2203195B (en) |
IT (1) | IT1216093B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109595222A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | A kind of isolation cylinder |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3841765A1 (en) * | 1988-12-12 | 1990-06-13 | Seeger Kolben Gmbh Co Kg | TOOL ACTUATING CYLINDER WITH CONTROL VALVE |
DE4108220C2 (en) * | 1991-03-14 | 2003-04-17 | Festo Ag & Co | Piston-cylinder arrangement |
DE4201464C2 (en) * | 1992-01-21 | 1995-08-24 | Festo Kg | Device for damping a piston displaceable in a cylinder in at least one of its end position areas |
JPH05346102A (en) * | 1992-06-11 | 1993-12-27 | Sailor Pen Co Ltd:The | Control method for vertical air cylinder |
DE4234063C1 (en) * | 1992-10-09 | 1994-03-10 | Vickers Systems Gmbh | Hydraulic cylinder electronic end-position damping system - senses piston position at ends of stroke using free-field, inductive, capacitive or cavity resonator detection, and varies hydraulic supply with controllable-cross=section choke |
DE4319022A1 (en) * | 1993-06-01 | 1994-12-08 | Mannesmann Ag | Method for operating a pressure medium-operated positioning or gripping or clamping tool |
DE4341810B4 (en) * | 1993-12-08 | 2004-01-29 | Festo Ag & Co | Sensor device for position detection of a piston |
DE4406578A1 (en) * | 1994-03-01 | 1995-09-07 | Rexroth Mannesmann Gmbh | Machine tools positioning drive |
DE19645701A1 (en) * | 1996-11-06 | 1998-05-07 | Wabco Gmbh | Valve device for a door system which can be actuated by a pressure medium |
DE10021744A1 (en) | 2000-05-04 | 2001-11-15 | Festo Ag & Co | Device for adjusting the differential pressure in a fluid cylinder |
DE10122297C1 (en) * | 2001-05-08 | 2002-06-27 | Festo Ag & Co | Hydraulic circuit and control system for moving piston and locking it in position has proximity switches measuring cylinder position and sending signals to control circuit |
US7040349B2 (en) | 2002-03-27 | 2006-05-09 | Viking Technologies, L.C. | Piezo-electric actuated multi-valve manifold |
DE10235982B3 (en) * | 2002-08-06 | 2004-01-22 | Weiler Werkzeugmaschinen Gmbh | Drive for linearly movable components of a machine tool |
DE10240252A1 (en) * | 2002-08-31 | 2004-03-11 | Sig Technology Ltd. | Method and device for pneumatic control |
JP4690309B2 (en) * | 2003-01-23 | 2011-06-01 | バイキング テクノロジィーズ エル.シー. | Position control system for fluid operated cylinders |
US7021191B2 (en) * | 2003-01-24 | 2006-04-04 | Viking Technologies, L.C. | Accurate fluid operated cylinder positioning system |
JP4200284B2 (en) | 2003-03-20 | 2008-12-24 | Smc株式会社 | High speed driving method and system for pressure cylinder |
WO2005045257A1 (en) * | 2003-11-07 | 2005-05-19 | Japan Science And Technology Agency | Actuator using fluid cylinder, method of controlling the actuator, and choke valve devices |
EP1605170B1 (en) | 2004-06-09 | 2009-03-25 | Oseney Limited | An air spring pneumatic product rejection system |
CA2479454A1 (en) * | 2004-08-30 | 2006-02-28 | Gary Stephen Ataman | Internally locking actuator with direct acting integral lock sensor |
JP5244383B2 (en) | 2005-03-31 | 2013-07-24 | 独立行政法人科学技術振興機構 | Actuator using fluid cylinder and control method thereof |
JP4114684B2 (en) * | 2005-08-11 | 2008-07-09 | コベルコ建機株式会社 | Control device for hydraulic cylinder and work machine equipped with the same |
DE102006041601A1 (en) * | 2006-09-05 | 2008-03-06 | ITW Oberflächentechnik GmbH & Co. KG | Control device of a compressed air motor, in particular in combination with a pump and a spray coating system |
JP5014186B2 (en) * | 2008-02-07 | 2012-08-29 | 新明和工業株式会社 | Control device for hydraulic cylinder |
DE102009032897B4 (en) * | 2009-07-10 | 2013-09-19 | Stabilus Gmbh | Piston-cylinder assembly |
US8818564B2 (en) | 2009-08-31 | 2014-08-26 | Alcon Research, Ltd. | Pneumatic pressure output control by drive valve duty cycle calibration |
US8666556B2 (en) | 2009-12-10 | 2014-03-04 | Alcon Research, Ltd. | Systems and methods for dynamic feedforward |
EP2509549B1 (en) | 2009-12-10 | 2013-12-25 | Alcon Research, Ltd. | Systems and methods for dynamic pneumatic valve driver |
US8821524B2 (en) | 2010-05-27 | 2014-09-02 | Alcon Research, Ltd. | Feedback control of on/off pneumatic actuators |
DE102010022747A1 (en) * | 2010-06-04 | 2011-12-08 | Wabco Gmbh | Device with a pneumatic actuating cylinder and method for controlling such a device |
FR2971019B1 (en) | 2011-01-27 | 2016-01-15 | Exel Ind | DEVICE AND SYSTEM FOR MONITORING AN ALTERNATING LINEAR DISPLACEMENT PNEUMATIC ACTUATING PUMP. |
US9060841B2 (en) | 2011-08-31 | 2015-06-23 | Alcon Research, Ltd. | Enhanced flow vitrectomy probe |
CN102322458A (en) * | 2011-10-11 | 2012-01-18 | 南京工业职业技术学院 | The variable-speed oil hydraulic cylinder |
US10070990B2 (en) | 2011-12-08 | 2018-09-11 | Alcon Research, Ltd. | Optimized pneumatic drive lines |
DE102013007608A1 (en) * | 2013-05-03 | 2014-11-06 | Audi Ag | Method and device for determining the position of a welding electrode relative to the connecting element |
CN104741763B (en) * | 2013-12-31 | 2017-02-15 | 深圳市鹏煜威科技有限公司 | Resistance welding machine with floating device and resistance welding method |
JP6853812B2 (en) * | 2015-08-10 | 2021-03-31 | バット ホールディング アーゲー | Pneumatic valve actuator |
CN105805089A (en) * | 2016-06-03 | 2016-07-27 | 南通纺都置业有限公司 | Stretching speed testing device of oil cylinder under different oil pressures |
EP3346143B1 (en) | 2016-12-28 | 2021-02-03 | Henning Fuhrmann | Work cylinder device with at least one work cylinder unit with mechanical position locking and method for operating the same |
DE102016125782A1 (en) * | 2016-12-28 | 2018-06-28 | Henning Fuhrmann | Working cylinder device with at least one working cylinder unit with mechanical position assurance and method for its operation |
CN108915945A (en) * | 2018-06-26 | 2018-11-30 | 深圳市名业精密机电设备有限公司 | Piston cylinder passes through electrodeless or segmentation speed regulation accurate positioning method |
DE102018217337A1 (en) * | 2018-10-10 | 2020-04-16 | Festo Se & Co. Kg | Movement device, tire handling device and method for operating a fluidic actuator |
CN113102972A (en) * | 2021-03-24 | 2021-07-13 | 天津英创汇智汽车技术有限公司 | Controllable closing device of reverse formula cylinder power of admitting air |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1492160A (en) * | 1974-03-09 | 1977-11-16 | Martonair Ltd | Actuator with pressure tappings for position sensing |
DE2419474A1 (en) * | 1974-04-23 | 1975-11-13 | Smg Sueddeutsche Maschinenbau | CONTROL FOR HYDRAULIC WELDING PRESSES |
JPS5124490A (en) * | 1974-08-23 | 1976-02-27 | Komatsu Mfg Co Ltd | Shirinda nyoru ichigime sochi |
DE2843543C2 (en) * | 1978-10-05 | 1982-05-06 | Siemens AG, 1000 Berlin und 8000 München | Control device for a double-acting pressure medium-operated working cylinder and for the differential pressure-dependent control of the contact force |
DE2908583A1 (en) * | 1979-03-05 | 1980-09-18 | Wabco Fahrzeugbremsen Gmbh | DEVICE FOR STOPPING THE WORKING PISTON OF A DOUBLE-ACTING WORK CYLINDER |
JPS55126110A (en) * | 1979-03-19 | 1980-09-29 | Dengensha Mfg Co Ltd | Press cylinder |
JPS58644A (en) * | 1981-06-22 | 1983-01-05 | Japan Steel Works Ltd:The | Cushion circuit of air cylinder for moving high speed large inertia object |
JPS6034166A (en) * | 1983-08-06 | 1985-02-21 | Nisshin Kikai Kogyo Kk | Constant pressure device for filling kneaded material |
DE3416661A1 (en) * | 1984-05-05 | 1985-11-07 | ORIGA GmbH Pneumatik, 7024 Filderstadt | Method for positioning a pressure-medium cylinder and a control system for this purpose |
-
1987
- 1987-03-19 DE DE3708989A patent/DE3708989C2/en not_active Expired - Fee Related
-
1988
- 1988-02-29 GB GB8804722A patent/GB2203195B/en not_active Expired - Lifetime
- 1988-03-15 IT IT8819779A patent/IT1216093B/en active
- 1988-03-18 JP JP63067042A patent/JPS63254203A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109595222A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | A kind of isolation cylinder |
CN109595222B (en) * | 2019-01-02 | 2023-12-01 | 中船重工中南装备有限责任公司 | Isolation oil cylinder |
Also Published As
Publication number | Publication date |
---|---|
GB2203195A (en) | 1988-10-12 |
JPS63254203A (en) | 1988-10-20 |
DE3708989A1 (en) | 1988-10-06 |
GB2203195B (en) | 1991-04-10 |
IT1216093B (en) | 1990-02-22 |
IT8819779A0 (en) | 1988-03-15 |
DE3708989C2 (en) | 1993-10-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990228 |