Folding implement with fixed bearing surface for rotatable tool
US12253109B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 16, 2022 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Jul 28, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/32
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A folding implement such as a knife having a handle and a blade or tool rotatably connected to the handle by a fixed bearing surface. The handle includes a first scale or side and a second scale or side, wherein a first fixed bearing surface is connected to the first scale and a second fixed bearing surface is connected to the second scale, with the blade or tool positioned between the first scale and second scale and in contact with the bearing surfaces. The bearing surfaces contact an adjacent side surface of the tang of the blade or tool and sweep there across when being moved from a closed position to an open position or vice-versa. The bearing surfaces are fixed in the scales and do not rotate thereby providing a consistently reliable mechanism for reducing operating friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.