Drafting device for the convenient containment of eraser shavings
US4920895A · kind A · utility
5Cited by
8References
16Claims
0Family size
Inventors
Key dates
| Filing date | Apr 7, 1989 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Apr 7, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43L5/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A drafting device connectable to a side of a drafting board having a top surface is disclosed. The device has a housing with a top, a pair of sides, a length, and an interior. A storage tray for drafting tools is affixed to the top of the housing. A removable trough is slidably mounted in the interior of the housing and has a retracted position, an extended position, and a pair of lips. A slot is contained on either of the pair of sides of the housing so that eraser shavings can be brushed from the drafting board through the slot and into the trough for keeping the drafting board clean.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.