Receptacles – Closures – Crossbar carries closure and serves as closure fastener
Patent
1989-02-28
1990-04-10
Norton, Donald F.
Receptacles
Closures
Crossbar carries closure and serves as closure fastener
B65D 4528
Patent
active
049152530
ABSTRACT:
A center-point compression sealing lid member for use on containers of all sorts is described. The lid member is completely removable from the container. The lid member comprises a cover with a spacer positioned in its approximate center, a force transfer bar permanently positioned over the spacer and extending across the cover with means on one extremity to engage a retaining means on the container, and a lever bar pivotably mounted on the force transfer bar's second extremity to engage a second retaining means on the container. When the lid member is properly positioned over the container's opening with the means on the first extremity of the force transfer bar and the lever bar aligned with the retaining means found on the container and downward force exerted on the lever bar, the force is transmitted through the spacer to the cover. Substantially equal force is exerted by the cover's peripheral edges onto edges of the container's top opening to form a liquid-tight seal.
REFERENCES:
patent: 3722549 (1973-03-01), Wilson et al.
patent: 3924778 (1975-12-01), Sorensen
patent: 4098427 (1978-07-01), Duckworth, Jr.
patent: 4127215 (1978-11-01), Morrison
patent: 4351446 (1982-09-01), Madden
Norton Donald F.
Wilson Charles R.
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