Method and apparatus for creating, using, and dispensing tubes
US7472724B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2004 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Oct 8, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention includes a method of lining a core slot that includes the steps of unwinding a tube, separating a portion of the tube, inserting the tube into a core slot, and expanding the tube to line the core slot. The present invention also includes a continuous piece of helically-wound tubing that is wound on a spool along with an apparatus and method used for creating the spool of tubing. The method includes the steps of helically wrapping a web of material in an overlapping relationship to form a helically-wound tube, advancing the tube in a longitudinal direction of the tube and winding the tube onto a spool while at least a portion of the tube is being formed by the step of helically-wrapping. Method variations in which one or more of the aforementioned steps may be eliminated as appropriate, can be used for many other uses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.