Protective end cap for paper rolled on a tube
US5337895A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Dec 3, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/5112
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A single-piece protective end cap for insertion into the ends of a tube of rolled sheet material to protect and contain the exposed edges of the rolled sheet material and reinforce the ends of the tube has a central panel with hingedly attached intermediate panels foldable to extend substantially perpendicular to the central panel to collectively form a tubular section with longitudinal edges coincident with the inside surface of the tube for holding the end cap firmly in the end of the tube, and outer panels hingedly attached to the intermediate panels and foldable to extend substantially perpendicular thereto and parallel the central panel to provide a peripheral lip around the tubular section which contains and protects the exposed edges of the sheet material when the end cap tubular section is inserted into the end of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.