Folding knife with puzzle piece locking mechanism
US7774940B2 · kind B2 · utility
39Cited by
21References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 2008 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Aug 10, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B1/044
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A locking mechanism for a folding knife or tool with a handle having a cavity defined within the handle; a knife or tool blade having a heel-butt end with a female puzzle cavity portion cut out of a rear side of the heel-butt end, and the heel-butt end being rotationally interconnected to the front end of the handle wherein the knife or tool blade travels between an extended position and a closed position within the handle cavity; and a matching male puzzle portion at an end of a tang portion configured for engaging snugly and interconnectively with the female puzzle cavity portion at the heel-butt of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.