Lug lid for materials container with sacrificial depressions and annular expansion bead
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 11, 1997
Grant Date -
N/A
app pub date -
Mar 21, 1996
filing date -
Jan 24, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lug lid (10) which closes an open head pail (12) has lugs (31) that overlap the annular rim (19) of the pail and which are crimped thereabout to attach the lid to the pail. An annular expansion bead (38) is formed in the lid to enable the lid to expand to relieve some of the increases in internal pressure which might occur in the container. Sacrificial depressions (46) are formed in the lid (10) adjacent the expansion bead (38) with each sacrificial depression radially aligned with a lid lug (31). The sacrificial depressions selectively weaken the lid to control the formation of wrinkles (47) in the lid in response to increased pressure within the materials container, with such wrinkles being formed in radial alignment with the lugs of the lid, where the connection between the lid (10) and the pail (12) is strongest.
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