Lens case with pressure sensitive venting system
US4750610A · kind A · utility
55Cited by
12References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1986 |
| Grant date | Jun 14, 1988 |
| Priority date | — |
| Expiry date | Dec 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S134/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An appliance for disinfecting contact lenses wherein the lenses are disposed within a disinfecting solution which liberates a gas during the disinfecting process. The appliance has a container body with a removable cap which forms a sealed chamber having a normally closed vent conduit, and a lens holder is provided to support the contact lenses within the container body. The cap includes a resiliently deflectable flange which defines a check valve in the conduit which is deflected by excessive pressure within the container to open the valve enabling passage of effluent gas from the chamber through the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.