Method of forming a housing of a vehicle occupant protection apparatus
US7563335B2 · kind B2 · utility
3Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Dec 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49968
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forming a dual chamber seamless tube (64) includes providing a slug of steel (56) and cold working a first end (70) of the slug (56) to form a first chamber (114) and cold working a second end (72) of the slug (56) to form a second chamber (116). The first and second chambers (114 and 116) are axially aligned and separated by a wall portion (126) of the tube (64).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.