Process for fabricating honeycomb material
US5228936A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1992 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Aug 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24149
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and apparatus for making expandable honeycomb structures suitable for use as window coverings. In one embodiment, folded tubular strips with adhesive lines are fed continuously through a cutter which cuts them into predetermined lengths. The cut strips are then accelerated to a stacker for further processing before the next cut strip arrives. In another embodiment, webs of material are fed continuously in a downstream direction, adhesive lines are applied, a middle web is slitted into strips, and the strips bonded along opposite edges to the outer webs. By choosing for the outer webs transparent or porous material, and for the middle web opaque material, a light or air controlling honeycomb structure results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.