Carpenter's roof pitch measuring device
US6105266A · kind A · utility
8Cited by
15References
4Claims
0Family size
Inventor
Key dates
| Filing date | Apr 16, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Apr 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/566
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A carpenter's "square" has a first member with a spirit level so it can be held horizontal with one end elevated above a pitched roof, while the opposite end rests on the roof exactly 12 inches from the inside edge of a vertically movable member supported in the first member, and clamped to it by a thumb screw. This inside edge is graduated inches to read out roof pitch directly in "inches per foot".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.