Window component scrap reduction
US7802365B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2005 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Mar 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/534
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of making elongated spacer frame members prevents a first spacer frame member in a series of spacer frame members from being scrapped. A supply of thin relatively narrow sheet metal stock is provided. The stock is fed endwise to a stamping station. The stock is passed through the stamping station that stamps the stock to define a scrap length of stock followed by a connected first spacer frame defining length of stock. The scrap length of stock and the connected first spacer frame defining length of stock are fed to a roll forming station. The scrap length of stock and the connected first spacer frame defining length of stock are formed into a rigid linearly extending scrap element having opposite side walls and a base wall and a connected rigid linearly extending first spacer frame element having opposite side walls and a base wall. A connection between the scrap element and the first spacer frame element is then severed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.