Elastomeric strip and method of manufacture
US5009947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1989 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Apr 28, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2902
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An elastomeric strip of substantially U-shaped cross-section is disclosed which is adapted to be mounted on a flange having longitudinally-spaced curved sections. The elastomeric strip includes a support frame having longitudinally displaceable frame portions that are reinforced with longitudinally extending degradable reinforcing material. The reinforced support frame is advanced through an extrusion die where a coating of an elastomeric material is extruded on the support frame to form an elastomeric strip without degrading the degradable material. Longitudinally-spaced regions of the degradable reinforcing material corresponding to the longitudinally-spaced curved sections of the flange are then degraded, allowing the elastomeric strip to more faithfully follow the curved sections of the flange when the strip is mounted thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.