CA1293883C - Herse a chassis et attelage ameliores - Google Patents

Herse a chassis et attelage ameliores

Info

Publication number
CA1293883C
CA1293883C CA000615834A CA615834A CA1293883C CA 1293883 C CA1293883 C CA 1293883C CA 000615834 A CA000615834 A CA 000615834A CA 615834 A CA615834 A CA 615834A CA 1293883 C CA1293883 C CA 1293883C
Authority
CA
Canada
Prior art keywords
frame
soil
hitch
ground engaging
pair
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 - Lifetime
Application number
CA000615834A
Other languages
English (en)
Inventor
Orlan H. Mork
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
Priority claimed from US06/224,458 external-priority patent/US4448258A/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA1293883C publication Critical patent/CA1293883C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F3/7622—Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
CA000615834A 1981-01-12 1990-08-16 Herse a chassis et attelage ameliores Expired - Lifetime CA1293883C (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/224,458 US4448258A (en) 1981-01-12 1981-01-12 Soil leveling apparatus
US224,458 1981-01-12
US06/570,347 US4585075A (en) 1981-01-12 1984-01-13 Soil leveling apparatus with improved frame and hitch
US570,347 1984-01-13
US85681886A 1986-04-28 1986-04-28
US856,818 1986-04-28

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA000535606A Division CA1293635C (fr) 1986-04-28 1987-04-27 Engin niveleur a chassis et attelage perfectionnes

Publications (1)

Publication Number Publication Date
CA1293883C true CA1293883C (fr) 1992-01-07

Family

ID=27397354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000615834A Expired - Lifetime CA1293883C (fr) 1981-01-12 1990-08-16 Herse a chassis et attelage ameliores

Country Status (1)

Country Link
CA (1) CA1293883C (fr)

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Legal Events

Date Code Title Description
MKLA Lapsed