Light tight storage container
US5425453A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1994 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Oct 25, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C3/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light tight storage container for photographic sheet material comprises a base having a floor and upstanding sidewalls constituting a tray for holding stack of the sheet material and a generally flat lid covering the top of the tray. The tray and lid respectively have outer peripheral margins bent angularly to the plane of the lid in mating relation to create a light tight labyrinth. At its outer termination, the outer peripheral margin of the tray is formed as an upwardly opening shallow channel while the outer termination of the lid is formed as a lip seating in the channel to act as a separable hinge along which the lid can pivot relatively to the tray to open the tray. The lid can also be completely removed. The channel is spaced above the plane of the tray floor for insertion of the fingers thereunder for lifting of the tray with or without the lid in place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.