Container lid having non-perpendicular reinforcement ribs

Details Container lid having non-perpendicular reinforcement ribs Container lid having non-perpendicular reinforcement ribs

1990-09-10

1992-04-14

Marcus, Stephen

Receptacles

Closures

Removable closure retained by ductile in situ deformation

220355, 220356, B65D 4116

Patent

active

051039931

ABSTRACT:
A container lid is characterized by a flange having reinforcing ribs with their axes disposed non-perpendicularly to said flange. The reinforcing ribs may be relatively thin in comparison to prior art devices and permit an increased flexibility of the flange, providing improved shock absorption capabilities and ease of installation and removal of the lid, and improved automation thereof.

REFERENCES:
patent: 3107838 (1963-10-01), Brys et al.
patent: 3532244 (1970-10-01), Yates, Jr.
patent: 4034889 (1977-07-01), Hammes et al.
patent: 4256240 (1981-03-01), Woinarski
patent: 4380304 (1983-04-01), Anderson
patent: 4422559 (1983-12-01), Landis
patent: 4457447 (1984-07-01), Kirkis
patent: 4491238 (1985-01-01), Tobolt
patent: 4512493 (1985-04-01), VonHoldt
patent: 4518097 (1985-05-01), Milton et al.
patent: 4711364 (1987-12-01), Letica

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