Apparatus for capping receptacles
US4000708A · kind A · utility
6Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1974 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Sep 23, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B7/285
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An outwardly flanged valve cup is secured to a rolled annular edge about an opening of an aerosol can, with interposition of a sealing gasket between the flange and edge, by exerting a downward pressure on an inner part of the cap to elastically pre-stress the flange by its reaction pressure against the gasket and edge, and, while the flange is so held, outwardly expanding a skirt portion of the cup by plastic deformation to form an annular fixing bulge therein, the flange being left free to adopt a definitive position as a function of its reaction pressure and being held in its definitive position by the fixing bulge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.