Wormgear shaped driving part, elevator using wormgear shaped driving part and elevating system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 11, 2016
Grant Date -
Aug 15, 2013
app pub date -
Aug 3, 2011
filing date -
Aug 6, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An elevator moving along an elevator shaft in a building, comprises a car for transport, a worm driving part moving together with the car, a rotating axis of which is parallel to a moving path of the car, and a worm support part including supporting teeth installed in the elevator shaft along the moving path of the car in accordance with worm teeth of the worm driving part. Using the worm driving part and the worm support part mutually interacting, the elevator can go up and down, and the worm driving part and the worm support part keep low frictional resistance to improve an efficiency of lifting.
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