Metal Container Corporation, Inc.

Keith D Oravetz

Tim DiMenna

Gary Stowers

John Urbanowicz

Jim Reed

Louis Lackey

Chris Neiner

Loyd J Bridges

A method and apparatus for forming a visible symbol or other indicium on a tab portion of a beverage container. The method comprises the steps of advancing a tab stock material through a series of tab-forming stations. The tab portion is at least partially formed from the tab stock at each of the tab-forming stations. The advancement of the tab stock is dwelled or halted while the tab is formed. The tab stock is accelerated from dwell to resume advancement of the tab stock material between the stations. A selected portion of the tab is irradiated with light energy to form the visible indicium. The apparatus comprises a plurality of tab-forming stations, each tab-forming station at least partially forming the tab from a tab stock. A conveyor or track mechanism is configured to advance the tab stock from one tab-forming station to another. An etching apparatus is associated with the conveyor and tab-forming stations to selectively etch the symbol on the tab. A sensor is coupled to the tab stock to sense acceleration of the tab stock from rest during advancement of the tab stock. The sensor is coupled to the etching apparatus to permit the etching apparatus to etch the symbol while the tab stock is accelerated.

Method and apparatus for forming visible indicium on the tab portion of a beverage container

A system (20) is provided for detecting and ejecting container ends having a reversed orientation from an axially aligned group of otherwise similar nested container ends having a non-reversed orientation. The system includes a support member (36) interposed along the path of movement of the container ends and having a bore (52) and an ejection slot (54). A counting sensor (62) for counting the number of passing container ends and a gap sensor (72) for detecting a gap in the periphery of the axially aligned group caused by a reversed container end are positioned upstream of the ejection slot and connected to a control unit (70). An air nozzle (82) is positioned next to the axially aligned group of container ends in axial alignment with, but laterally opposite to, the ejection slot and connected to a source of pressurized air controlled by the control unit (70). The control unit, upon receiving a signal from the gap detector, waits to receive a predetermined number of count signals from the counting sensor and then activates an air valve (88) releasing an air blast from the nozzle which impinges on the container ends aligned with ejection slot (54) causing reversed container ends to be ejected from the axially aligned group.

Reversed container end ejection system

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Oklahoma City, OK, United States of America

Keith D Oravetz