CA2480205A1 - Lift apparatus having an articulated double parallelogram boom assembly - Google Patents

Lift apparatus having an articulated double parallelogram boom assembly

Info

Publication number
CA2480205A1
CA2480205A1 CA002480205A CA2480205A CA2480205A1 CA 2480205 A1 CA2480205 A1 CA 2480205A1 CA 002480205 A CA002480205 A CA 002480205A CA 2480205 A CA2480205 A CA 2480205A CA 2480205 A1 CA2480205 A1 CA 2480205A1
Authority
CA
Canada
Prior art keywords
boom assembly
parallelogram boom
riser
lift apparatus
articulated
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.)
Granted
Application number
CA002480205A
Other languages
French (fr)
Other versions
CA2480205C (en
Inventor
Robert D. Backer
Michael F. Goodrich
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.)
JLG Industries Inc
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
Priority claimed from CA002227986A external-priority patent/CA2227986C/en
Publication of CA2480205A1 publication Critical patent/CA2480205A1/en
Application granted granted Critical
Publication of CA2480205C publication Critical patent/CA2480205C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Forklifts And Lifting Vehicles (AREA)
  • Jib Cranes (AREA)

Abstract

A lift apparatus includes a superstructure frame support, a riser, and an articulated parallelogram boom assembly operatively connected between the superstructure frame support and the riser. The articulated parallelogram boom assembly includes a floating frame, a lower parallelogram boom assembly operationally connected between the superstructure frame support and the floating frame, an upper parallelogram boom assembly operationally connected between the floating frame and the riser. A first lift means is provided for raising and lowering the articulated parallelogram boom assembly. A telescopic boom is connected to the riser. A second lift means raises and lowers the telescopic boom. The floating frame includes a notch in an upper portion thereof and the telescopic boom seats in the notch when the articulated parallelogram boom assembly is fully lowered and the telescopic boom is fully lowered.
CA002480205A 1997-01-31 1998-01-26 Lift apparatus having an articulated double parallelogram boom assembly Expired - Lifetime CA2480205C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3710597P 1997-01-31 1997-01-31
US60/037,105 1997-01-31
CA002227986A CA2227986C (en) 1997-01-31 1998-01-26 Lift apparatus having an articulated double parallelogram boom assembly

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002227986A Division CA2227986C (en) 1997-01-31 1998-01-26 Lift apparatus having an articulated double parallelogram boom assembly

Publications (2)

Publication Number Publication Date
CA2480205A1 true CA2480205A1 (en) 1998-07-31
CA2480205C CA2480205C (en) 2005-11-22

Family

ID=33435754

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002480238A Expired - Lifetime CA2480238C (en) 1997-01-31 1998-01-26 Lift apparatus having an articulated double parallelogram boom assembly
CA002480205A Expired - Lifetime CA2480205C (en) 1997-01-31 1998-01-26 Lift apparatus having an articulated double parallelogram boom assembly

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002480238A Expired - Lifetime CA2480238C (en) 1997-01-31 1998-01-26 Lift apparatus having an articulated double parallelogram boom assembly

Country Status (1)

Country Link
CA (2) CA2480238C (en)

Also Published As

Publication number Publication date
CA2480238C (en) 2006-09-12
CA2480205C (en) 2005-11-22
CA2480238A1 (en) 1998-07-31

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20180126

MKEX Expiry

Effective date: 20180126