ES394858A1 - Rams - Google Patents
RamsInfo
- Publication number
- ES394858A1 ES394858A1 ES394858A ES394858A ES394858A1 ES 394858 A1 ES394858 A1 ES 394858A1 ES 394858 A ES394858 A ES 394858A ES 394858 A ES394858 A ES 394858A ES 394858 A1 ES394858 A1 ES 394858A1
- Authority
- ES
- Spain
- Prior art keywords
- piston member
- chambers
- casing
- rams
- fluid
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/38—Opening, closing or clamping 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
- 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
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
- F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
- F15B11/0365—Tandem constructions
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
-
- 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
- F15B2211/305—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
- F15B2211/32—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
- F15B2211/70—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
- F15B2211/7055—Linear output members having more than two chambers
- F15B2211/7056—Tandem 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/765—Control of position or angle of the output member
- F15B2211/7653—Control of position or angle of the output member at distinct positions, e.g. at the end position
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Press Drives And Press Lines (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
In a fluid-operated ram a piston member is reciprocable within a casing and divides the casing into two chambers. One of the chambers is arranged to be connected to a source of driving fluid while the other is arranged to be evacuated whereas the piston member is held by a quick-release mechanism, e.g. a mechanical bolt or an electromagnet arranged to co-operate with part of the piston member.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7032546A FR2112065B1 (en) | 1970-09-08 | 1970-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES394858A1 true ES394858A1 (en) | 1975-04-16 |
Family
ID=9061021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES394858A Expired ES394858A1 (en) | 1970-09-08 | 1971-09-07 | Rams |
Country Status (7)
Country | Link |
---|---|
US (1) | US3834276A (en) |
CH (1) | CH549733A (en) |
DE (1) | DE2144672A1 (en) |
ES (1) | ES394858A1 (en) |
FR (1) | FR2112065B1 (en) |
GB (1) | GB1361449A (en) |
IT (1) | IT939763B (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3999465A (en) * | 1974-11-01 | 1976-12-28 | Clark Equipment Company | Magnet piston retention for free wheeling |
US4222309A (en) * | 1976-09-07 | 1980-09-16 | Theodore Ongaro | Hydraulic power system |
US4108195A (en) * | 1977-06-23 | 1978-08-22 | Berry Henry K | Quick-closing fire gate |
US4516473A (en) * | 1981-05-07 | 1985-05-14 | Shokestu Kinzoku Kogyo Kabushiki Kaisha | Cylinder driving system |
DE3214163C1 (en) * | 1982-04-17 | 1983-12-22 | Hüller Hille GmbH, 7140 Ludwigsburg | Device for reducing the terminal velocity of a cylinder piston |
US4641793A (en) * | 1985-04-16 | 1987-02-10 | Rieter Machine Works Limited | Thread winding machine and method of performing automatic changeover of winding of a thread |
US5188016A (en) * | 1992-03-25 | 1993-02-23 | Tung Fung Eng | Cylinder structure for a pneumatically operated tool |
DE19622474C2 (en) * | 1996-06-05 | 1998-04-09 | Deutsch Zentr Luft & Raumfahrt | High speed actuator |
US6071096A (en) * | 1997-04-25 | 2000-06-06 | Grasl; Andreas | Pneumatic cylinder, in particular for actuating fume extraction valves in fume and heat extraction plants |
FR2785338B1 (en) * | 1998-10-28 | 2001-08-10 | Aro | CYLINDER WITH ELASTIC DEVICE FOR RECALLING A WORKING PISTON ASSEMBLY IN NEUTRAL POSITION |
DE10046165B4 (en) | 2000-09-19 | 2005-06-23 | Koenig & Bauer Ag | actuator |
CN101858371B (en) * | 2010-05-25 | 2013-08-21 | 中航飞机起落架有限责任公司 | Actuator cylinder with in-built manual-operated emergent unlocking device |
JP5673481B2 (en) | 2011-10-19 | 2015-02-18 | 株式会社豊田自動織機 | Injection device |
JP2019015348A (en) * | 2017-07-07 | 2019-01-31 | 東京エレクトロン株式会社 | Gas cylinder |
CN108119347A (en) * | 2017-12-19 | 2018-06-05 | 浙江强盛压缩机制造有限公司 | A kind of double acting control device of air compressor machine off-load cylinder |
DE102018126771A1 (en) * | 2018-10-26 | 2020-04-30 | Schaeffler Technologies AG & Co. KG | Actuator device for a motor vehicle |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US513601A (en) * | 1894-01-30 | Mechanism foe conteolling engines | ||
US2790424A (en) * | 1953-10-05 | 1957-04-30 | Leo V Giladett | Pressure change responsive motor with shear wire |
US2866442A (en) * | 1954-08-26 | 1958-12-30 | Nat Pneumatic Co Inc | Pressure motor with piston cushioning and speed control means |
US2945677A (en) * | 1956-11-08 | 1960-07-19 | Jr Archer W Kammerer | Hydraulic weight compensating apparatus for well bore devices |
US2987050A (en) * | 1957-04-29 | 1961-06-06 | Sperry Rand Corp | Compensated flow control valve |
US2984529A (en) * | 1959-01-26 | 1961-05-16 | Baldwin Rubber Co | Unitary sealed piston |
US3023740A (en) * | 1960-05-25 | 1962-03-06 | Fairchild Stratos Corp | Delayed pneumatic actuator |
US3182561A (en) * | 1960-10-03 | 1965-05-11 | Bendix Corp | Pneumatically operated servomechanism |
US3027876A (en) * | 1960-12-05 | 1962-04-03 | Strick Rudolf Paul | Fluid motor with sequence valve |
US3082745A (en) * | 1961-08-23 | 1963-03-26 | Gen Motors Corp | Power brake booster control valve mechanism |
US3230838A (en) * | 1963-11-14 | 1966-01-25 | Beloit Corp | Dual lock positioning cylinder |
US3605553A (en) * | 1969-05-05 | 1971-09-20 | Pier Luigi Panigati | Pressure fluid operated cylinder |
-
1970
- 1970-09-08 FR FR7032546A patent/FR2112065B1/fr not_active Expired
-
1971
- 1971-08-23 CH CH1235471A patent/CH549733A/en not_active IP Right Cessation
- 1971-08-30 IT IT69877/71A patent/IT939763B/en active
- 1971-09-07 US US00178153A patent/US3834276A/en not_active Expired - Lifetime
- 1971-09-07 DE DE19712144672 patent/DE2144672A1/en active Pending
- 1971-09-07 ES ES394858A patent/ES394858A1/en not_active Expired
- 1971-09-08 GB GB4194971A patent/GB1361449A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1361449A (en) | 1974-07-24 |
IT939763B (en) | 1973-02-10 |
DE2144672A1 (en) | 1972-03-09 |
FR2112065A1 (en) | 1972-06-16 |
CH549733A (en) | 1974-05-31 |
US3834276A (en) | 1974-09-10 |
FR2112065B1 (en) | 1974-04-26 |
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