when did they stop making pull tabs on beer cans
1990 1970s
title: Drink can text: must be an easier way, he later stayed up all night until he came up with the pull tab. Pull-tab cans, or the discarded tabs from them, were also called "pop-tops" colloquially. In Australia these were colloquially known as "ring-pull". Into the 1970s, the pull-tab was widely popular, but its popularity came with a significant problem, as people would frequently discard the pull-tabs on the ground as litter, or drop them into the can and risk choking on them. These problems were both addressed by the invention of the "push-tab". Used primarily on Coors Beer cans in the mid-1970s, the title: Drink can text: Cola company, in 1964. The early pull-tabs detached easily. In 1976 the "Journal of the American Medical Association" noted cases of children ingesting pull-tabs that had broken off and dropped into the can. Full-top pull-tabs were also used in some oil cans and are currently used in some soup, pet food, tennis ball, nuts and other cans. In 1975, Daniel F. Cudzik, an engineer with Reynolds Metals, filed a design patent application for a "End closure for a container." This later became known as a "Sta-Tab." When the Sta-Tab launched in 1975, on Falls City beer and, quickly, other drinks, title: Drink can text: to admit air. As early as 1922, inventors were applying for patents on cans with tab tops, but the technology of the time made these inventions impractical. Later advancements saw the ends of the can made out of aluminium instead of steel. Cans are usually in sealed paperboard cartons, corrugated fiberboard boxes, or trays covered with plastic film. The entire distribution system and packaging need to be controlled to ensure freshness. Mikolaj Kondakow and James Wong of Thunder Bay, Ontario, Canada invented the pull tab version for bottles in or before 1951 (Canadian patent 476789). Then, in 1962, Ermal Cleon title: Ermal C. Fraze text: first design is not the in modern usage. Dangerous for the user and often causing injury, it included a lever that pierced a hole in the top of the can, which produced sharp edges. Later that year, he established a mechanism known as the "pull-tab" can. Its users are simply required to pull a removable tab to open the drink. He received U.S. patent No. 3,349,949 for the invention in 1963, and subsequently sold it to Alcoa. By 1965, around 75% of U.S. breweries were using them. However, in the mid-1970s, pressure from environmentalists led to the development of the title: Drink can text: the hole used for consuming the drink. Consumers could also easily cut themselves on the edges of the holes or get their fingers stuck. Press button cans were used by Pepsi in Canada from the 1970s to 1980s and Coors in the 1970s. They have since been replaced with pull tabs. Used in Australia, locally known as "pop-tops", for soft drinks during the early 1980s. Another variation on the drink can is the "full aperture end", where the entire lid can be removed – turning an aluminium can into a cup. Crown Holdings first designed the "360 End" for use