Closure assembly for a wide mouth vessel
US7182213B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2002 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Nov 19, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D51/1688
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure assembly includes: a vessel opening; a closure for said opening, the closure having a base portion and a skirt portion; a first screw thread on the opening, said first screw thread having one or more first thread segments; a second screw thread on an inner surface of the skirt of the closure, said second screw thread having one or more second thread segments; said first and second screw threads being configured to enable a user to secure, remove and resecure the closure into a sealing position on the opening by rotation of the closure on the opening; wherein the first thread segments are shorter than said second thread segments; and wherein the second thread segments are each made up of one or more radially spaced projecting portions, each said portion extending radially no more than about 60° around the closure skirt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.