Lid for containers, housings, bottles or similar structures
US5988414A · kind A · utility
18Cited by
18References
22Claims
0Family size
Inventors
Key dates
| Filing date | Apr 23, 1996 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Apr 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D51/1616
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A lid is disclosed having a pressure compensation device comprising a gas permeable, liquid impermeable membrane and a surge protection element comprising a gas permeable material which serves to break the surge pressure exerted on the membrane by the container contents. The lid is designed as an injection molded plastic part with the membrane being integrated in an upper cover portion of the lid by injection molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.