Cap for a port of a pressurized container or conduit
US8657145B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Nov 15, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2260/036
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system for sealing an access port of a pressurized container or conduit comprises a metallic cap 10 having a sealing surface 20 which forms a seal with a corresponding sealing surface 16 of a metallic access port assembly 2, when the surfaces are pushed against each other by a clamping means 4 which is preferably separate from the cap. As shown the metal to metal sealing surfaces are frustro-conical in shape. The cap comprises a shoulder 26 which engages the rim of the access port if the cap is over tightened preventing deformation of the sealing surfaces. The cap may comprise a further frustro-conical sealing surface 40 which co acts with a corresponding surface 46 on an insert 6 which fits within and rests upon an internal shoulder 18 of the access port assembly 2 which may be welded onto a container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.