Lifting apparatus with safety device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 29, 2015
Grant Date -
Aug 23, 2012
app pub date -
Feb 23, 2012
filing date -
Feb 23, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A lifting apparatus having a tool, which is vertically displaceable by means of a motor and to which at least a first toothed wheel is coupled in terms of movement. The toothed wheel engages over the vertical path of displacement in a stationary toothed rack. The lifting gear includes a safety device having a blocking element which, in a locked position, stops the tool from moving in the direction of gravity, at least when the lifting apparatus is deenergized, wherein the blocking element stops the tool over the vertical path of displacement, at basically any level in any vertical position, and is held against a restoring force in an unblocking position with vertical movement of the tool, and the restoring force pushes the blocking element into its locked position, at least when the lifting apparatus is deenergized.
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