Protective boot for automotive component and method of making
US6402999B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Sep 1, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/703
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blow molded product which is generally tubular having a first and second open ends, a bellows section intermediate said first and second ends so that the product is flexible, and a skirt adjacent the second end, the skirt having an outer cylindrical outer surface and a lobed inner surface. The bellows section is formed in a blow molding operation and the skirt is formed by injection molding. The final product is formed by thermally fusing the two portions together. This process enables molding of a product with an external surface which may substantially cylindrical with an internal surface which has lobes, or other internal projections or non-cylindrical surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.