Dual purpose puncher
US7111540B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 2003 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Apr 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/944
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A dual-purpose puncher combining two-hole and three-hole punch assemblies, is shown and described. The dual purpose puncher provides a duality of uses to the consumer without the necessity for readjustment.In the preferred embodiment, the two-hole punch assembly is positioned opposingly to the three-hole stationary punch assembly in such a way that a central arm of the press lever frame of the three-hole punch assembly passes between two arms of the press lever frame of the two-hole punch assembly.In another embodiment, the modified press lever frame of the three-hole punch assembly slidably engages the modified press lever frame of the two-hole punch assembly thereby driving both, the punch set of the two-hole punch assembly and the punch set of the three-hole punch assembly.Either embodiment combines both punch assemblies and a platform into a single unit while reducing the platform's footprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.