Lifting apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 11, 1995
Grant Date -
N/A
app pub date -
Mar 31, 1994
filing date -
Apr 9, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lifting apparatus capable of lifting operators or materials upward and capable of lifting a platform on which heavy materials are placed to an elevated spot. The lifting apparatus comprises a pair of middle booms which are rotatably coupled to each other at the center thereof in an X-shape, a lower boom which is extended from or contracted in the middle boom and is connected to a chassis, an upper boom which is extended from and contracted in the middle boom and is connected to the platform, and an operating mechanism which is disposed between the chassis and the middle booms and is movable from a folded position into a vertically straight position for lifting the middle booms.
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