Scissors lifter drive apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 13, 2003
app pub date -
Aug 30, 2001
filing date -
Aug 30, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A scissors lift with a drive apparatus that raises and lowers a load platform by extending and collapsing a scissors linkage. A drive motor moves a cam follower through generally horizontal reciprocal motion. The cam follower engages and follows a cam mounted on the scissor linkage to extend the scissor linkage. The cam is positioned and shaped to gradually accelerate and decelerate scissor linkage extension. The cam is also shaped to allow the drive motor to accelerate to an optimum desired operating speed before causing the drive motor to bear the load of extending the first scissor linkage and raising the load platform.
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