Tab top can opener
US4583429A · kind A · utility
Inventors
Key dates
| Filing date | Oct 2, 1980 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Oct 2, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/906
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A unitary opener device for tab-type cans, which is extremely inexpensive to fabricate, simple to use and reliable in operation. A first embodiment comprises a unitary member having a handle portion adapted to be gripped by a user, and a working end portion having a pair of relatively inflexible nose portions, the nose portions being separated by a slot dimensioned to receive the exposed portion of the can opening tab. One of the nose portions has a shorter length than the other, while each of the nose portions is provided with an external convex fulcrum surface adapted to engage the can surface bearing the tab to assist in raising the exposed portion of the tab away from the can surface and rupturing the seal between the tab and the can surface. A second embodiment comprises a unitary member having a handle portion adapted to be gripped by a user, and a working end portion having a single relatively inflexible nose portion dimensioned to be received in an aperture in the exposed portion of the can opening tab in frictional engagement therewith, so that insertion of the nose portion into the tab aperture, followed by rotation of the handle portion in a plane substantially perpendic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.