US 6,981,602 B2
Tamper evident bottle cap
Mike Xiaoli Ma, San Jose, Calif. (US); and Brian M. Adams, Newark, Calif. (US)
Assigned to Portola Packaging, Inc., San Jose, Calif. (US)
Filed on Oct. 04, 2002, as Appl. No. 10/266,091.
Application 10/266091 is a continuation in part of application No. 09/955844, filed on Sep. 18, 2001, granted, now 6,766,916.
Application 09/955844 is a continuation in part of application No. 09/900505, filed on Jul. 05, 2001, granted, now 6,484,896.
Application 09/900505 is a continuation in part of application No. 09/653679, filed on Sep. 01, 2000, abandoned.
Application 09/653679 is a continuation of application No. 09/323571, filed on Jun. 01, 1999, granted, now 6,112,923.
Application 09/323571 is a continuation in part of application No. 08/904878, filed on Aug. 01, 1997, granted, now 5,913,437.
Prior Publication US 2003/0071007 A1, Apr. 17, 2003
Int. Cl. B65D 41/32 (2006.01)
U.S. Cl. 215—254 11 Claims
OG exemplary drawing
 
1. A closure for sealing the opening of a container having a radially extending locking bead, said closure comprising:
a top having a periphery;
an annular skirt depending downwardly from said periphery and including a lower edge and a line of weakness extending upwardly from said lower edge;
a tear tab extending downwardly from said skirt below said lower edge; and
a tamper-evidencing locking member including an inwardly extending locking ring that extends radially inwardly from said skirt intermediate said top and said bottom edge, the retaining rim including a free edge that is adapted to engage the radially extending locking bead of the container when the closure is removed from the container neck;
wherein said locking ring includes an outwardly directed pleat.