Upright fork lift truck
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 20, 1983
Grant Date -
N/A
app pub date -
Feb 9, 1981
filing date -
Feb 9, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A triple-stage upright having a fixed upright section, two telescopic upright sections, and a load carrier mounted on the inner telescopic section. A first asymmetric lift cylinder assembly is located in the upright off-center and adjacent to one side of the upright and a second asymmetric lift cylinder assembly is mounted in the upright off-center and adjacent to the opposite side of the upright. Both cylinder assemblies are supported from a common base, one of the cylinders being operatively connected to the load carrier, and the other lift cylinder being operatively connected to both telescopic upright sections. The lift cylinder which is connected to the load carrier is, when collapsed, approximately one-half the height of the collapsed upright, and the other lift cylinder assembly is, when collapsed, approximately equal to the height of the collapsed upright. A unique balancing system is implemented in the combination of cylinder locations and respective reeving of lifting chains which maintains a substantial balance of force-moments in the transverse plane of the upright.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully