Light-sealing cap with feature for addition of materials
US5402905A · kind A · utility
2Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Aug 13, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D13/043
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A light-lock cap for protecting container contents from exposure to light. The cap has a labyrinth passage to allow liquids into a container covered by the cap and a labyrinth passage to allow gases to exit a container covered by the cap. The liquid passage has an upward facing inlet and a downward facing outlet. The gas passage has a side facing orifice on the interior of the cap and a side facing orifice on the exterior of the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.