I-joist hole cutting apparatus
US6857831B2 · kind B2 · utility
69Cited by
14References
12Claims
0Family size
Inventor
Key dates
| Filing date | Feb 27, 2004 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Feb 27, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/8957
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hole saw for cutting standardized holes in the web portion of an I-joist features a light weight three spoke body having a rim with continuous circumference and three inserted cutting blades fixed in an offset to the circumference, which is dimensioned in accordance to standard web heights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.