Safety devices for overhead garage door springs
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 3, 1987
Grant Date -
N/A
app pub date -
Oct 29, 1985
filing date -
Oct 29, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A safety device for overhead garage and like door structures having a counterbalance spring structure including a coil spring which includes a safety cable extending through the open center of the coil spring and adjustably anchored at each end to the garage structure so as to be placed under sufficient tension to contain the spring against substantial horizontal or vertical movement in the event of breakage.
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