Method of making a protective boot for an automotive component
US6099788A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
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 is provided. 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 thereby forming a product with a substantially cylindrical external surface and a non-cylindrical internal surface which has lobes or other internal projections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.