Method of making a light-sealing cap with feature for addition of materials
US5632950A · kind A · utility
0Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Jan 24, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D13/043
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A light-lock cap comprising a shell, means to seal said shell to a container, means to allow passage of fluids through said cap into a container covered by said cap, means to allow gases to exit a container covered by said cap, said means for liquid passage comprises a labyrinth passage with an upward facing inlet and downward facing exit, said means for gases to exit comprises a labyrinth passage with a side facing orifice on the interior of said cap and a side facing orifice on the exterior of said cap. There is also provided a method of forming the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.