Sheet metal file guide
US4023445A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Oct 1, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D63/162
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A flat sheet metal plate defining a reference plane on one side. Said plate having first and second sections and an intermediate section. The first and second sections being flat and in a common plane, and the intermediate section formed into a semi-circular loop with a center portion of the loop removed. The remaining portions of the semi-circular loop provide a pair of guide lugs to guide a round file. The first and second sections are adapted to rest on the depth gauge and cutter of a cutting link in a saw chain with the guide lugs straddling the chain and aligned with the gullet of a cutting link to guide the file in a desired orientation against the cutting edge of the cutting link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.