Overhead door replacement system
US5446956A · kind A · utility
0Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1994 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Apr 1, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49876
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of reconditioning the tracks for rollers of an overhead door by using a machining device to machine down the interior of the tracks and cutting a groove on the interior sides of the tracks whereby a metal insert can be snapped into the grooves on the interior sides of the tracks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.