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CA968948A - Hydraulic control system for road graders - Google Patents

Hydraulic control system for road graders

Info

Publication number
CA968948A
CA968948A CA139,517A CA139517A CA968948A CA 968948 A CA968948 A CA 968948A CA 139517 A CA139517 A CA 139517A CA 968948 A CA968948 A CA 968948A
Authority
CA
Canada
Prior art keywords
control system
hydraulic control
road graders
graders
road
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
CA139,517A
Other versions
CA139517S (en
Inventor
Theodore Rivinius
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA968948A publication Critical patent/CA968948A/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
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
    • 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
    • E02F9/2004—Control mechanisms, e.g. control levers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
CA139,517A 1971-04-12 1972-04-12 Hydraulic control system for road graders Expired CA968948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13329171A 1971-04-12 1971-04-12

Publications (1)

Publication Number Publication Date
CA968948A true CA968948A (en) 1975-06-10

Family

ID=22457882

Family Applications (1)

Application Number Title Priority Date Filing Date
CA139,517A Expired CA968948A (en) 1971-04-12 1972-04-12 Hydraulic control system for road graders

Country Status (2)

Country Link
US (1) US3759333A (en)
CA (1) CA968948A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5584346A (en) * 1992-07-27 1996-12-17 Komatsu Est Corp. Control system for a motor grader
GB2440949A (en) * 2006-08-15 2008-02-20 Agco Gmbh Spool valve
US8412420B2 (en) 2010-12-14 2013-04-02 Deere & Company Wheel lean control
US9797113B2 (en) 2014-11-10 2017-10-24 Caterpillar Inc. Motor grader implement valve layout for narrow front cab

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192439A (en) * 1938-09-12 1940-03-05 Caterpillar Tractor Co Road machine
US2766772A (en) * 1952-04-17 1956-10-16 Carbonic Dispenser Inc Valve apparatus
US2870551A (en) * 1954-07-06 1959-01-27 Thompson Scoop Grader Inc Road working machine
US3593806A (en) * 1969-08-25 1971-07-20 Gurries Mfg Co Clamping mechanism for road building machines or the like
US3700044A (en) * 1970-09-21 1972-10-24 Allis Chalmers Mfg Co Hydraulic system for controlling bulldozer blade

Also Published As

Publication number Publication date
US3759333A (en) 1973-09-18

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