1892: Patent for the crown cap was awarded to William Painter (Kaplan 1982: 123).

1909: Introduction of crown-like closure with no corrugations in the skirt (Everette 1982: 168).

1909: Invention of composition cork for use as liner in crown caps (Lief 1965:25).

1912: Widespread adoption of the crown cap (Kaplan 1982).

1927: Charles E. McManus developed a way to granulate cork, for use in crown cap (Kaplan 1982: 124).

1930: Spot crowns (plastic lined) (Kaplan 1982: 125).

1933: Pilferproof roll-on closure for use on alcohol bottles (Everette 1982: 185).

1955: Introduction of solid, molded polyvinyl chloride lined crown. 0.235" I.007" skirt (Everette 1982: 168, 174; Ward et al. 1977: 239).

1956: Short-skirted crown cap (7/32") introduced (Ward et al. 1977: 239).

1957: Plastic liners in crown caps instead of cork were first used (Kaplan 1982: 124).

1965: Twist-off crown cap (Kaplan 1982: 131).

1965: Roll-on closure (Kaplan 1982: 131).

Ca. 1965: Elimination of cork-lined crown cap (Everette 1982: 168).

1966: Introduction of the "turn-off" crown cap, 4-threaded finish (Everette 1982: 168).

1966: Aluminum roll-on closure for beer bottles. 28 mm only size used for beer (Everette 1982: 182).

1977: Plastic bottle cap introduced (Kaplan 1982: 131).

Previous Page                          Home                         References Cited                        Next Page