Cable control device for sectional overhead door
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 24, 2001
Grant Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Jan 21, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cable control device (10, 110) in a sectional overhead door (11) having a motor-driven counterbalance system (30) including a spring-loaded drive shaft (31), cable drums (35) carried by the drive shaft, cables (C) attached to and interconnecting the cable drums and the door and forming and releasing cable wraps of the cable on the cable drums upon raising and lowering of the door, and shrouds (10, 110) associated with the cable drums engaging the cable wraps through substantially the circumference of the cable drums to maintain axial alignment of the cable wraps with the cable drums in the event of the development of slack in the cables.
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