Method and apparatus for producing a resilient product
US5573491A · kind A · utility
52Cited by
12References
57Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1994 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Dec 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2924
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus characterized by slitting a sheet of material having a natural resilience into a plurality of strips to form a body of such strips and folding each of the strips into a zig-zag shape. The folding step/function is accomplished by advancing the plurality of strips against a restriction acting on the body of strips in such a manner that the natural resilience of the material produces substantially uniform adjacent opposite folds thereby causing each of the strips to assume a zig-zag shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.