Integrally molded vapor vent valve
US5103865A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1991 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Jul 15, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8634
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A molded assembly comprising a wall made from a plastic sheet that is pliable at a first elevated temperature. A body having a penetrating portion and a connecting portion forms an aperture in the wall, the connecting portion extends through the aperture and is made from a material resistant to melting at the first temperature. The connecting portion is made from a material that will at least partially melt at the first temperature. The connecting portion engages one surface of the wall, whereby when the wall is raised to the first temperature, the connecting portion partially melts and becomes integral with the wall when returned to ambient temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.