Chain saw guide bar
US5216814A · kind A · utility
11Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Mar 18, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27B17/025
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chain saw guide bar comprises an elongate plate member having a rounded tip and providing guide means for a saw chain around its periphery. The plate member has a network of intercommunicating passageways provided between its lateral faces and extending between multiple points on its upper and lower periphery so as to permit the flow of fluid therebetween. This arrangement provides efficient transfer of lubricant or other medium to all points on the guide bar periphery and can be up to 30% lighter than conventional designs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.