Planar object lifting apparatus
US7681691B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Apr 16, 2007 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Mar 27, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B9/193
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for lifting planar objects which includes an extendable rectilinear elongated frame formed of at least two spaced U-beams, each U-beam defining a longitudinal runway and having an elongated area removed from a forward face below a midpoint of the frame. The removed elongated area defines an entranceway to the longitudinal runway. The entranceway is dimensioned to receive the planar object for placement on a transport carriage while maintaining a top portion of the planar object within the longitudinal runway. The carriage is configured to laterally span the two spaced U-beams such that a portion of the carriage and a portion of the planar object are confined within each interior longitudinal runway at least during transport. A skid is perpendicularly joined to a forward face of the carriage at about its bottom edge. The skid is configured to support the planar object during placement and lifting. A pull cable is affixed at one end to the carriage at about a midpoint of a lateral dimension and in proximity to a top edge of the carriage. A first cross member is laterally joined to a top of the frame which includes a pulley aligned such that the pull cable when in communi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.