Saw chain presets
US11247363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2019 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Jan 16, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27B33/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Embodiments herein describe presets for saw chains comprised of one or more rivets that are coupled to a tiestrap. Each rivet may further comprise a central flange and a hub protruding from opposed sides from the flange. In some embodiments, the hub may be non-concentric from the flange, and the flange may be non-circular, such as ovoid or cam-shaped. In some embodiments, various portions of the flange, rivet, and tiestrap may be selectively hardened to various degrees of hardness, depending upon their location and usage. In some embodiments, the rivets may be prevented from rotating with respect to the tiestrap using a brazing process, and may be configured to facilitate such processes. Other embodiments may employ a non-circular hub. Still other embodiments may use a low-temperature process for soldering that does not affect the hardness of the tiestrap or rivet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.