Double ended knife
US7603779B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2005 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Feb 20, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B5/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A utility knife and a method of using a utility knife. The utility knife including a first blade coupled to a linkage and movably positioned within the housing between a first blade fully-retracted position wherein all of the first blade is positioned within the housing and a first blade extended position wherein a portion of the first blade extends outside the housing, and a second blade coupled to the linkage and movably positioned within the housing between a second blade fully-retracted position wherein all of the second blade is positioned within the housing and a second blade extended position wherein a portion of the second blade extends outside the housing. Additionally, the linkage being movable between a first position in which the linkage locks the first blade in the fully-retracted position while permitting the second blade to move to the extended position and a second position in which the linkage locks the second blade in the fully-retracted position while permitting the first blade to move to the extended position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.