Hoist
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 14, 2003
Grant Date -
N/A
app pub date -
Jan 10, 2000
filing date -
Mar 18, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Drums each having an independent drive source is installed on a trolley and each of the drums has a lifting rope which is wound around it and has an unwound end locked on a suspension piece, which will suppress any need to design the lifting rope in longer length and the drums in larger size. Sun gears, carriers and planetary gears disposed in each of the drums as well as internal teeth in each of the drums so as to be integrally rotated with the drum constitute a speed reducing mechanism for transmitting rotation of a drive source to each of the drums, will enable the entire hoist to be compact in size. Unwound length of the lifting rope from each drum is adjusted to control posture of the suspension piece and load in adequate state.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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