Patent · US Expired

Closure device for a container

US7604138B2 · kind B2 · utility

1Cited by
15References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 3, 2004
Grant dateOct 20, 2009
Priority date
Expiry dateJan 2, 2026

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/9247
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A closure device (10) for a container (12) includes a filling device (14) that can be attached to an opening (16) of the container (12) A closure structure such as a membrane (18), a system (34), or a duckbill closure (54, 84) is attached to the filling device (14) in such a way that the opening (16) of the container (12) is sealed when the filling device (14) is attached to the opening (16). The closure structure is coated at least partially with polytetrafluoroethylene (22, 38, 60, 94) on one side (20, 40, 58, 90) that is accessible from outside the container (12) in the assembled state of the filling device (14) on the container (12).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.