Means and method of separating lengths of flattened flexible polymeric tube
US4069359A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Jun 14, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24777
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A plurality of lengths of at least one flattened flexible polymeric tube disposed in superposed relation. Each length in cross section includes enlarged folded edge portions with a flat center portion between the edge portions. Means such as a separator or spacer having substantial thickness is inserted between or within the tube lengths to support the weight of at least a substantial part of the center portion of each length to prevent the formation of edge creases longitudinally along the edges of the tube lengths. The invention is particularly useful in the processing of uncured or unvulcanized rubber tubes either in a stacked or rolled condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.