Tube packing sheet with spaced support surfaces
US4427730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Apr 26, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24669
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
YA molded sheet of the single layer type for packing at least two directly superimposed layers of fluorescent light tubes comprising upwardly directed contours including longitudinally spaced apart tube cradling surfaces for each tube and longitudinally extending narrow tube separating ribs for a plurality of tubes in an upper layer, and downwardly directed contours including a series of flat support surfaces to hold the rest of the sheet elevated thereabove to facilitate drying of the damp sheet during manufacture, the series of support surfaces being dimensioned and arranged to contact the upper part of the same number of tubes in a lower layer and resist lateral shifting of the upper layer of tubes with respect to the lower layer of tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.