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1. (US20140271076) Weighted boom assembly

Office : United States of America
Application Number: 13797720 Application Date: 12.03.2013
Publication Number: 20140271076 Publication Date: 18.09.2014
Grant Number: 09139409 Grant Date: 22.09.2015
Publication Kind : B2
IPC:
B66C 23/68
B66F 11/04
B PERFORMING OPERATIONS; TRANSPORTING
66
HOISTING; LIFTING; HAULING
C
CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
23
Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes
62
Constructional features or details
64
Jibs
68
foldable or otherwise adjustable in configuration
B PERFORMING OPERATIONS; TRANSPORTING
66
HOISTING; LIFTING; HAULING
F
HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
11
Lifting devices specially adapted for particular uses not otherwise provided for
04
for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
Applicants: Oshkosh Corporation
Inventors: Jacob J. Perron
Agents: Foley & Lardner LLP
Priority Data:
Title: (EN) Weighted boom assembly
Abstract: front page image
(EN)

A boom assembly includes a lower boom, an intermediate member, an upper boom, an intermediate link, and an actuator coupled between the intermediate member and the upper boom. The lower boom includes an intermediate member end and a base end, and the base end is configured to be pivotally coupled to a lift device. The intermediate member is pivotally coupled to the intermediate member end of the lower boom. The upper boom includes a first end pivotally coupled to the intermediate member, and the intermediate link is coupled directly between the upper boom and the lower boom. The intermediate member includes a base portion positioned to carry structural loading and a weighted portion positioned to provide counterweight for the lift device.