FR2186578B1 - - Google Patents
Info
- Publication number
- FR2186578B1 FR2186578B1 FR7319859A FR7319859A FR2186578B1 FR 2186578 B1 FR2186578 B1 FR 2186578B1 FR 7319859 A FR7319859 A FR 7319859A FR 7319859 A FR7319859 A FR 7319859A FR 2186578 B1 FR2186578 B1 FR 2186578B1
- Authority
- FR
- France
- 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
-
- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/382—Connections to the frame; Supports for booms or arms
- E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
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- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating 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
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE712972A SE363368B (en) | 1972-05-31 | 1972-05-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2186578A1 FR2186578A1 (en) | 1974-01-11 |
FR2186578B1 true FR2186578B1 (en) | 1976-04-23 |
Family
ID=20270490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7319859A Expired FR2186578B1 (en) | 1972-05-31 | 1973-05-30 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2326382C3 (en) |
FR (1) | FR2186578B1 (en) |
GB (1) | GB1377726A (en) |
SE (1) | SE363368B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU502182B2 (en) * | 1975-03-17 | 1979-07-19 | Massey-Ferguson Inc | Hydraulic swing mechanism |
FR2395412A1 (en) * | 1977-06-23 | 1979-01-19 | Poclain Sa | AUTOMATIC ROTATION STOP DEVICE OF A HYDRAULIC MOTOR |
US4201509A (en) * | 1978-10-04 | 1980-05-06 | Ford Motor Company | Backhoe swing cylinder hydraulic circuit |
US9623717B1 (en) * | 2015-10-13 | 2017-04-18 | Deere & Company | Work vehicles with cylinder cushioning arrangement |
-
1972
- 1972-05-31 SE SE712972A patent/SE363368B/xx unknown
-
1973
- 1973-05-24 DE DE19732326382 patent/DE2326382C3/en not_active Expired
- 1973-05-24 GB GB2500573A patent/GB1377726A/en not_active Expired
- 1973-05-30 FR FR7319859A patent/FR2186578B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE363368B (en) | 1974-01-14 |
DE2326382A1 (en) | 1973-12-13 |
FR2186578A1 (en) | 1974-01-11 |
DE2326382C3 (en) | 1978-10-26 |
DE2326382B2 (en) | 1978-02-23 |
GB1377726A (en) | 1974-12-18 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |