Sealed closure for plastic container with interlocking protective outer closure
US4111325A · kind A · utility
18Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1978 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Jan 23, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/0071
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container for storing and dispensing sterile liquids is provided with a hermetically sealed primary cap and overcap. The overcap and primary cap are provided, respectively, with an interlocking ring and undercut lip to provide for limited relative axial movement; the overcap and bottle neck are provided with interfitting lugs and ribs to provide for limited rotational movement. An outer ring has internal threads engaging external threads on the overcap and defines a jacking member whereby rotation of the outer ring moves the overcap upwardly to break the hermetic seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.