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OA03396A - Hydraulic implement lifting and force control device for agricultural tractors. - Google Patents

Hydraulic implement lifting and force control device for agricultural tractors.

Info

Publication number
OA03396A
OA03396A OA51973A OA51973A OA03396A OA 03396 A OA03396 A OA 03396A OA 51973 A OA51973 A OA 51973A OA 51973 A OA51973 A OA 51973A OA 03396 A OA03396 A OA 03396A
Authority
OA
OAPI
Prior art keywords
control device
force control
agricultural tractors
implement lifting
hydraulic implement
Prior art date
Application number
OA51973A
Other languages
French (fr)
Original Assignee
Renault
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.)
Filing date
Publication date
Application filed by Renault filed Critical Renault
Publication of OA03396A publication Critical patent/OA03396A/en

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)
  • Lifting Devices For Agricultural Implements (AREA)
  • Mechanically-Actuated Valves (AREA)
OA51973A 1963-03-04 1964-12-31 Hydraulic implement lifting and force control device for agricultural tractors. OA03396A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR926788A FR1363918A (en) 1963-03-04 1963-03-04 Hydraulic implement lifting and force control device for agricultural tractors
FR947625A FR1376690A (en) 1963-03-04 1963-09-16 Hydraulic implement lifting and tractive effort control device for agricultural tractor

Publications (1)

Publication Number Publication Date
OA03396A true OA03396A (en) 1970-12-15

Family

ID=26200083

Family Applications (1)

Application Number Title Priority Date Filing Date
OA51973A OA03396A (en) 1963-03-04 1964-12-31 Hydraulic implement lifting and force control device for agricultural tractors.

Country Status (4)

Country Link
US (1) US3307455A (en)
FR (2) FR1363918A (en)
GB (1) GB1062443A (en)
OA (1) OA03396A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273248B (en) * 1964-12-09 1968-07-18 Int Harvester Co Control device for lifting and lowering agricultural equipment connected to tractors equipped with traction control and position control
US3450007A (en) * 1967-02-06 1969-06-17 Morris D Robinson Combination valve mechanism for hydraulic power systems
FR1552254A (en) * 1967-11-24 1969-01-03
CA964163A (en) * 1972-03-08 1975-03-11 Ford Motor Company Of Canada Tractor hydraulic lift control valve
US4030295A (en) * 1976-06-03 1977-06-21 J. I. Case Company Control valve for tractor-implement hydraulic system
US4341148A (en) * 1980-09-30 1982-07-27 Modular Controls Corporation Hydraulic sequencing valve
EP2909484B1 (en) * 2012-10-19 2017-12-27 Hema Endüstri Anonim Sirketi System preventing pressured oil leakage to cylinder line in control valve systems with flow divider

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799251A (en) * 1954-01-18 1957-07-16 Bob G Newgen Tractor hitch control device
US2970653A (en) * 1957-08-06 1961-02-07 Int Harvester Co Hydraulic depth control apparatus

Also Published As

Publication number Publication date
GB1062443A (en) 1967-03-22
FR1376690A (en) 1964-10-31
FR1363918A (en) 1964-06-19
US3307455A (en) 1967-03-07

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