Method of lighttightly packaging a stack of light-sensitive sheets
US6026955A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B25/141
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for lighttightly packaging a stack of light-sensitive photographic sheets in a lighttight holder comprising a rectangular tray-like base and a cover therefore, which comprises the steps of: PA1 placing one light- and dusttight wrapping foil on said base, said wrapping foil extending beyond the periphery of said base, PA1 disposing said stack of sheets onto said wrapping foil so that the wrapping foil becomes displaced in the base and is made to conform to the inner space thereof, PA1 placing another light- and dusttight wrapping foil on said loaded stack of sheets, PA1 placing a cover on said loaded base, the two wrapping foils protruding between the base and its cover, PA1 cutting simultaneously the protruding portions of the wrapping foils, and PA1 lighttightly sealing the cover to the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.