Method of forming raceway knockout
US9458629B2 · kind B2 · utility
4Cited by
12References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/7488
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming a knockout on a raceway includes removing a knockout from the raceway to form an opening, positioning the knockout within the opening, and thereafter attaching the knockout to the raceway by welding the knockout and the raceway together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.