Fiberglass panel cutter with adjustable square and duct knife
US5040297A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Dec 1, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26D7/0006
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present fiberglass panel cutter includes a blade extractor tab for slightly displacing or deflecting scrap pieces of ductboard from their corresponding grooves, a blade height adjuster for controlling the depth of the groove, a blade with aligned apertures for ready removal from a blade mount, a canted handle, and a set of linear channels formed in a lower surface of the cutter for guiding the cutter in a straight line across the ductboard. The present invention further includes a knife with a blade set at a downward angle relative its handle to efficiently make cuts at an arm's length in ductboard which may measure four feet by eight feet. The present invention further includes a square that is infinitely adjustable and convertible between right and left handed orientations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.