ApplicationNo. 05/821969 filed on 08/04/1977
US Classes:215/48, Broken by manipulation of closure215/2BOTTOM FILLED
ExaminersPrimary: Norton, Donald F.
Attorney, Agent or Firm
International ClassesB65D 35/44 (20060101)
B65D 35/00 (20060101)
B65D 51/18 (20060101)
B65D 51/20 (20060101)
B65D 1/02 (20060101)
Foreign Application Priority Data1976-11-27 DE
AbstractA nonrefillable container for medication and other liquid, pasty or granulated products to be kept sterile has a body of flexible resinous material, such as polyethylene or polypropylene, with a neck terminating in a solid tip which is integrally connected therewith via a reduced wall portion forming a frangible annular link whose rupture creates an outlet for the contents. The neck is surrounded in an airtight manner by a protective cap forming a socket firmly gripping the tip, the socket and the tip being of mating noncircular cross-section whereby rotation of the cap facilitates rupture of the link and withdrawal of the cap with the tip attached thereto. The cap and the neck may have complementary annular formations which interengage when, after break-off of the tip, the neck is pushed deeper into the cap than theretofore. To insure a tight initial fit free from contamination, the cap and the container are concurrently produced by injection molding and are assembled in a sterile environment while still hot from the mold.