Methods for manufacturing a paint roller with grooved substrate
US8257534B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 14, 2010 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2936
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for improving strength of the finished product in paint roller manufacturing processes and other continuous processes for producing tubular goods from polymers. The method utilizes a substrate such as a polypropylene strip with grooves on its surface. The grooved substrate is fed onto a mandrel to form a tube. Adhesive is applied upon the grooved surface of the grooved substrate. A cover may be applied about the tube, and the resulting product is then cut into finished-size paint rollers. The hardened adhesive in the grooves may operate to reduce the hoop-force which would otherwise tend to unwind the wound substrate. The method in certain embodiments provides a reduction in cost and weight of the finished product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.