FR2353216A1 - Distributeur de commande pour circuit hydraulique tracteur-instrument - Google Patents
Distributeur de commande pour circuit hydraulique tracteur-instrumentInfo
- Publication number
- FR2353216A1 FR2353216A1 FR7716710A FR7716710A FR2353216A1 FR 2353216 A1 FR2353216 A1 FR 2353216A1 FR 7716710 A FR7716710 A FR 7716710A FR 7716710 A FR7716710 A FR 7716710A FR 2353216 A1 FR2353216 A1 FR 2353216A1
- Authority
- FR
- France
- Prior art keywords
- tractor
- hydraulic circuit
- control distributor
- instrument hydraulic
- instrument
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
- A01B63/112—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to control draught load, i.e. tractive force
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/692,293 US4030295A (en) | 1976-06-03 | 1976-06-03 | Control valve for tractor-implement hydraulic system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2353216A1 true FR2353216A1 (fr) | 1977-12-30 |
Family
ID=24780000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7716710A Withdrawn FR2353216A1 (fr) | 1976-06-03 | 1977-06-01 | Distributeur de commande pour circuit hydraulique tracteur-instrument |
Country Status (8)
Country | Link |
---|---|
US (1) | US4030295A (fr) |
AU (1) | AU503494B2 (fr) |
BR (1) | BR7703521A (fr) |
CA (1) | CA1031243A (fr) |
FR (1) | FR2353216A1 (fr) |
GB (1) | GB1561284A (fr) |
SE (1) | SE7700886L (fr) |
ZA (1) | ZA771938B (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2435187A1 (fr) * | 1978-09-08 | 1980-04-04 | Renault | Dispositif de relevage electrohydraulique d'outils agraires |
US4869065A (en) * | 1988-05-09 | 1989-09-26 | Caterpillar Inc. | Single spool selector valve for simultaneous pump displacement and motor direction control in hydrostatic drive |
US10626896B2 (en) | 2018-08-10 | 2020-04-21 | Cnh Industrial America Llc | Control system for flushing contaminated hydraulic fluid |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3235010A (en) * | 1964-01-30 | 1966-02-15 | Case Co J I | Load depth control valve |
CH426341A (de) * | 1960-12-27 | 1966-12-15 | Hans Dipl Ing Molly | Hydraulische Hebevorrichtung, insbesondere zum Regeln der Pflugtiefe |
GB1062443A (en) * | 1963-03-04 | 1967-03-22 | Regle Nationale Des Usines Ren | Improvements relating to implement height-control mechanisms for farming tractors |
US3486334A (en) * | 1968-05-16 | 1969-12-30 | Cessna Aircraft Co | Hydraulic power transmission control |
US3604312A (en) * | 1969-10-23 | 1971-09-14 | Allis Chalmers Mfg Co | Draft control valve |
US3865514A (en) * | 1973-07-25 | 1975-02-11 | Sperry Rand Corp | Power transmission |
-
1976
- 1976-06-03 US US05/692,293 patent/US4030295A/en not_active Expired - Lifetime
-
1977
- 1977-01-27 SE SE7700886A patent/SE7700886L/ not_active Application Discontinuation
- 1977-03-14 CA CA273,867A patent/CA1031243A/fr not_active Expired
- 1977-03-30 ZA ZA00771938A patent/ZA771938B/xx unknown
- 1977-04-04 AU AU23932/77A patent/AU503494B2/en not_active Expired
- 1977-04-29 GB GB18071/77A patent/GB1561284A/en not_active Expired
- 1977-05-31 BR BR7703521A patent/BR7703521A/pt unknown
- 1977-06-01 FR FR7716710A patent/FR2353216A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH426341A (de) * | 1960-12-27 | 1966-12-15 | Hans Dipl Ing Molly | Hydraulische Hebevorrichtung, insbesondere zum Regeln der Pflugtiefe |
GB1062443A (en) * | 1963-03-04 | 1967-03-22 | Regle Nationale Des Usines Ren | Improvements relating to implement height-control mechanisms for farming tractors |
US3235010A (en) * | 1964-01-30 | 1966-02-15 | Case Co J I | Load depth control valve |
US3486334A (en) * | 1968-05-16 | 1969-12-30 | Cessna Aircraft Co | Hydraulic power transmission control |
US3604312A (en) * | 1969-10-23 | 1971-09-14 | Allis Chalmers Mfg Co | Draft control valve |
US3865514A (en) * | 1973-07-25 | 1975-02-11 | Sperry Rand Corp | Power transmission |
Also Published As
Publication number | Publication date |
---|---|
ZA771938B (en) | 1978-02-22 |
US4030295A (en) | 1977-06-21 |
GB1561284A (en) | 1980-02-20 |
SE7700886L (sv) | 1977-12-04 |
BR7703521A (pt) | 1978-03-14 |
AU2393277A (en) | 1978-10-12 |
CA1031243A (fr) | 1978-05-16 |
AU503494B2 (en) | 1979-09-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |