CA1050395A - Systeme hydraulique a selecteur de vitesses pour le relevage de la fleche - Google Patents

Systeme hydraulique a selecteur de vitesses pour le relevage de la fleche

Info

Publication number
CA1050395A
CA1050395A CA256,014A CA256014A CA1050395A CA 1050395 A CA1050395 A CA 1050395A CA 256014 A CA256014 A CA 256014A CA 1050395 A CA1050395 A CA 1050395A
Authority
CA
Canada
Prior art keywords
cylinder
cylinder means
oil
float
boom
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
CA256,014A
Other languages
English (en)
Inventor
Wilburn K. Brown
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.)
Pettibone Corp
Original Assignee
Pettibone Corp
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 US05/593,374 external-priority patent/US4033468A/en
Application filed by Pettibone Corp filed Critical Pettibone Corp
Application granted granted Critical
Publication of CA1050395A publication Critical patent/CA1050395A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)
CA256,014A 1975-07-07 1976-06-29 Systeme hydraulique a selecteur de vitesses pour le relevage de la fleche Expired CA1050395A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/593,374 US4033468A (en) 1975-03-17 1975-07-07 Hydraulic boom-lift system with selective speeds

Publications (1)

Publication Number Publication Date
CA1050395A true CA1050395A (fr) 1979-03-13

Family

ID=24374460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA256,014A Expired CA1050395A (fr) 1975-07-07 1976-06-29 Systeme hydraulique a selecteur de vitesses pour le relevage de la fleche

Country Status (1)

Country Link
CA (1) CA1050395A (fr)

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