초록 ▼

To prevent tampering with the contents of containers for pharmaceuticals and other products, a plastic cap which is an improvement upon U.S. Pat. Nos. 3,338,446 and 4,166,552. The neck of the container is sealed with a commercially available foil seal; the cap is dimensioned so that the foil seal is

To prevent tampering with the contents of containers for pharmaceuticals and other products, a plastic cap which is an improvement upon U.S. Pat. Nos. 3,338,446 and 4,166,552. The neck of the container is sealed with a commercially available foil seal; the cap is dimensioned so that the foil seal is inserted inside the cap prior to its being applied to the container. The dimensions of the cap accommodate the foil seal yet the snap-on and the tamper-proof features of the cap are maintained. At intervals, scorelines are formed extending upward from the bottom of the cap skirt; these tear if one attempts to pry the cap off the container and are visible evidence of the tampering. A flexible, thin flange projecting from the periphery of the cap is used to removed the cap in its reclosure mode; however, this flange has a sharp corner where it meets the cap skirt so that if one attempts to use the flange to pry off the cap when in its original sealing mode, the flange tears and gives additional evidence of tampering.

대표청구항 ▼

A plastic cap for sealing container necks having a top finish comprising a top disc having a depending skirt, said skirt having first bead means extending around the inside of said skirt spaced downward from said disc, second bead means extending around the inside of said skirt spaced downward from

A plastic cap for sealing container necks having a top finish comprising a top disc having a depending skirt, said skirt having first bead means extending around the inside of said skirt spaced downward from said disc, second bead means extending around the inside of said skirt spaced downward from said first bead means, a first scoreline extending circumferentially around said skirt spaced between said first and second bead means, a second scoreline extending up from the bottom edge of said skirt and merging with said first scoreline, tear means on said bottom edge adjacent said second score line, whereby by pulling said tear means the bottom of said skirt may be torn off by tearing upward along said second scoreline and then around said first scoreline, and a seal disc underneath said top disc inside said skirt and above said first bead means, whereby when said cap is applied to said neck said seal disc fits tightly against said top finish and is sealable with said top finish so that access to said neck cannot be obtained without tearing open said seal disc, said first and second bead means being engageable with third and fourth bead means, respectively, on the exterior of said neck to prevent removal of said cap without tearing off the portion of said skirt below said first scoreline.