Method of sealing a valve to an aerosol container
US5035106A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1989 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Dec 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4992
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The sealing arrangement for joining a valve mounting cup to an aerosol container includes provision of a valve mounting cup having a bent over flange portion of sufficient extent to permit clinching as well as crimping of the valve mounting cup to the aerosol container. The bent over flange portion drapes a predetermined amount alongside the bead or curl of the container to permit a clinching operation that anchors the mounting cup to the container. A sequential crimping operation further secures the valve mounting cup to the container bead and effectively squeezes a gasket provided between the mounting cup and container bead to provide a leak tight seal. Any striations present in the container bead are effectively plugged by the gasket due to the tight envelopment of the bent over flange around the container bead. The clinched and crimped joint thus provides an enhanced leak tight seal for an aerosol that substantially reduces or eliminates leakage at the joint between the valve mounting cup and the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.