Level wound coil, method of manufacturing same, and package for same
US7594621B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2006 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Dec 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49362
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A level wound coil (LWC) having a plurality of coil layers each of which has a pipe wound in alignment winding and in traverse winding. The LWC has a shift section where the pipe is shifted from the m-th coil layer to the (m+1)-th coil layer on a bottom surface thereof when the LWC is disposed on a mount surface. The shift section has the k-th shift section on inner layer side and the (k+1)-th shift section on outer layer side, where a start point of the (k+1)-th shift section does not transit, relative to a start point of the k-th shift section, to a direction reverse to a winding direction of the pipe. A length of the shift section that does not transit to the reverse direction is controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.