Method and apparatus for plastic duct bank manufacture
US9719612B2 · kind B2 · utility
0Cited by
16References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2016 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Mar 27, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53657
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for manufacturing a duct bank comprising the steps of loading a frame with a series of templates, positioning the frame adjacent a pipe extruder, aligning a set of a plurality of holes with a die of the pipe extruder, extruding a pipe of a first length into the set of holes, repeating the steps of aligning and extruding for each set of holes, thereby forming the duct bank, banding the duct bank, and removing the duct bank from the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.