Woodworking router
US4742855A · kind A · utility
30Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1987 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Apr 27, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/304088
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A woodworking router has an electric motor driven router head (12) surrounded by a dust collection collar (20). Pneumatic means (26) control the height of the collar relative to the router head between (a) a raised position exposing the router head for tool changing; (b) a lowered safety position in which the collar provides a safety guard around the router head; and (c) an even lower scavenge position for cleaning the worktable without routing. A factory dust collection duct is connected to a dust extraction duct mounting the collar for establishing an air flow over the electric motor (10) for motor cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.