Wood patch
US5104708A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1990 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Mar 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved wood patch, in combination with a slot formed in a blemished wooden surface, and apparatus and method of manufacture thereof. The improved wood patch has, where the wooden surface to be repaired is horizontal, three faces: a flat horizontal exterior face, a flat vertical interior face, and an angled arcuate interior face. The patch has both a larger vertical radius of curvature and a larger angle between the flat vertical interior face and the angled arcuate interior face than the slot. Apparatus for manufacture includes a router utilizing a double router bit having a straight cutting edge oriented perpendicular to the axis of rotation of the bit and an angled cutting edge oriented at an angle to the straight cutting edge. Both relative longitudinal and transverse movement between the wood stock and the double router bit are created by the router being installed on a pneumatically actuated pivoting platform attached to a carriage which is engaged to a longitudinal track, with the router having a cam follower which engages a cam having a series of lobes formed in the shape of the curved intersection of the flat interior face and the arcuate interior face of the wood patc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.