CA970251A - Hydraulic leveling circuit for implement - Google Patents

Hydraulic leveling circuit for implement

Info

Publication number
CA970251A
CA970251A CA164,291A CA164291A CA970251A CA 970251 A CA970251 A CA 970251A CA 164291 A CA164291 A CA 164291A CA 970251 A CA970251 A CA 970251A
Authority
CA
Canada
Prior art keywords
implement
leveling circuit
hydraulic leveling
hydraulic
circuit
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
Application number
CA164,291A
Other versions
CA164291S (en
Inventor
David H. Seaberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Case LLC
Original Assignee
JI Case Co
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 JI Case Co filed Critical JI Case Co
Application granted granted Critical
Publication of CA970251A publication Critical patent/CA970251A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
    • E02F3/433—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude horizontal, e.g. self-levelling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
CA164,291A 1972-07-17 1973-02-21 Hydraulic leveling circuit for implement Expired CA970251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00272365A US3811587A (en) 1972-07-17 1972-07-17 Hydraulic leveling circuit for implement

Publications (1)

Publication Number Publication Date
CA970251A true CA970251A (en) 1975-07-01

Family

ID=23039491

Family Applications (1)

Application Number Title Priority Date Filing Date
CA164,291A Expired CA970251A (en) 1972-07-17 1973-02-21 Hydraulic leveling circuit for implement

Country Status (2)

Country Link
US (1) US3811587A (en)
CA (1) CA970251A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372729A (en) * 1980-07-21 1983-02-08 Veda, Inc. Tilt control
US4408518A (en) * 1981-03-17 1983-10-11 The Cessna Aircraft Company Series self-leveling valve
US4452559A (en) * 1982-09-03 1984-06-05 J.I. Case Company Attachment assembly for bellcrank arm
FR2558540B1 (en) * 1984-01-24 1988-05-27 Granier Raymond RELEASABLE HYDRAULIC CONTROL TO ENSURE PARALLELOGRAM FUNCTION ON OTHERS ON A HANDLING TOOL
FR2596378B1 (en) * 1986-03-26 1988-07-08 Etude Innovation Materiel Agri QUICK COMPENSATION LOADING DEVICE FOR AGRICULTURAL TRACTORS AND THE LIKE
US4775288A (en) * 1986-10-03 1988-10-04 Dynamic Industries, Inc. High-lift loader
US4815357A (en) * 1987-07-21 1989-03-28 Lull Corp. Adjustable divided flow self-leveling system
US4799851A (en) * 1988-01-28 1989-01-24 Swanson William C Level lift hydraulic valve
US4923362A (en) * 1988-06-06 1990-05-08 Deere & Company Bucket leveling system with dual fluid supply
US5129775A (en) * 1991-05-31 1992-07-14 Coats Byron N Bale handling apparatus
US5447094A (en) * 1994-02-07 1995-09-05 Delta Power Hydraulic Co. Hydraulic system for bucket self-leveling during raising and lowering of boom
US5919026A (en) * 1997-06-02 1999-07-06 Kann Manufacturing Corporation Carry can discharge floor
DE102006024731B3 (en) * 2006-05-26 2007-08-16 Cnh Baumaschinen Gmbh Method for aligning equipment tilting on a lifting and lowering structure of a machine e.g. wheel loader comprises connecting hydraulic connections of a tilting cylinder with a hydraulic pump and moving the cylinder into a neutral position
CN103046590A (en) * 2013-01-30 2013-04-17 江苏柳工机械有限公司 Control method of hydraulic working system of loading machine
CN109610537A (en) * 2018-11-20 2019-04-12 江苏徐工工程机械研究院有限公司 Engineering vehicle scraper bowl levelling mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563137A (en) * 1969-06-30 1971-02-16 Cessna Aircraft Co Hydraulic self-leveling control for boom and bucket
US3695474A (en) * 1970-08-05 1972-10-03 Case Co J I Hydraulic control linkage for implement

Also Published As

Publication number Publication date
US3811587A (en) 1974-05-21

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