Knife opening mechanism
US4719700A · kind A · utility
105Cited by
7References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jun 26, 1986 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Jun 26, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B1/048
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knife of the type having a casing and a blade pivotably mounted thereto has an actuator button slidably mounted to the casing. The blade has a concentric wheel associated therewith. One end of a non-extensible linkage is connected to the actuator, and the opposite end of the non-extensible linkage is wrapped around a portion of the wheel. When the user exerts a force to slide the actuator, the user-exerted force is transmitted by the non-extensible linkage to rotate the wheel, thereby pivoting the blade from its closed position to its open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.