Chain hoist
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 14, 1990
Grant Date -
N/A
app pub date -
Feb 7, 1990
filing date -
Dec 14, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lever-operated hoist chain equipped with a cargo chain slip-out preventive mechanism. A slip-out preventive member linked to the unloaded side end part of a link chain in a hoist chain is made of a metal block excelling in impact resistance, and has a width greater than the interval between both side plates of the main body frame. Therefore, whether the load applied on the cargo lifting hook is large or small, if the let-off of the link chain unexpectedly exceeds the limit and the free end part side is excessively drawn out to the load side having the hook, the slip-out preventive member abuts against the outer circumference of the both side plates of the main body frame, and securely blocks the slip-out of the link chain free end part, so that the safety of the work is guaranteed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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