Patent · US Expired

Enclosed-reeving, live-line boom

US7341157B2 · kind B2 · utility

5Cited by

27References

20Claims

0Family size

Inventors

Methody W. Slobogean · Burns Lake, CA
Fred P. Smith · Alpine, US
Todd Mendenhall · South Jordan, US
Nathan H. Morrill · Lehi, US

Key dates

Filing date	Nov 29, 2005
Grant date	Mar 11, 2008
Priority date	—
Expiry date	Nov 29, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66D1/08
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A crane comprising a boom formed as an elongate tubular structure and a line assembly to extend a line from a least one end of the boom. The line assembly may include a first bank of sheaves, a second bank of sheaves, a line reeved around the first and second banks of sheaves, and an extension mechanism controlling the distance between the first and second banks of sheaves. The second bank of sheaves and at least a portion of the extension mechanism being enclosed within boom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.