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US 10,518,926 B2Granted
Reverse pressure can end
AssigneeStolle Machinery Company, LLC
InventorsRobert Joseph Will, Dennis Cornelius Stammen
Life of this patent
Estimating the term…
Abstract
A can end includes a center panel, an annular portion disposed about the center panel, a chuck wall disposed about the annular portion, a curl extending radially outwardly from the chuck wall, the annular portion including an annular ridge and an annular countersink, the annular countersink disposed adjacent and about the annular ridge. The annular countersink and the annular ridge are structured to resist deformation from external or reverse pressure.
Claims2
A can end structured to be coupled to a can body, the can end comprising:
- a center panel;
- an annular portion disposed about said center panel;
- a chuck wall disposed about said annular portion;
- a curl extending radially outwardly from the chuck wall;
- said annular portion including an annular ridge and an annular countersink;
- said annular countersink disposed adjacent and about said annular ridge;
- said annular countersink is generally arcuate in cross-section;
- said annular ridge is generally arcuate in cross-section;
- said annular countersink includes a single center and extends over an arc of between about 140° and 180°;
- and
- said annular ridge includes a single center and extends over an arc of between about 140° and 180°.
8 more elements
Dependencies are inferred from the claim text.