Method for making layered foil structure
US4678115A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1985 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Apr 15, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1025
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method is set forth for forming a unitary structure having a plurality of deformable foils having first and second sides stacked one upon another with the first sides facing in one direction and the second sides in an opposite direction, each of the foils having an undulating cross-section, adjacent of the foils having their undulations orthogonal to one another and every other one of the foils having parallel orientations. The method comprises positioning a first plurality of parallel rods against the first side of a respective one of the foils and positioning a second plurality of parallel rods against the second side of the same foil with the rods of the second plurality of rods between and parallel to the rods of the first plurality of rods. Thereafter the aforementioned steps are repeated with each next adjacent foil having the rods defining the undulating cross-section thereof at a non-zero angle to the rods of the next adjacent foil. The foils are then diffusion bonded to each other at their points of contact to form a unitary structure and the rods are removed from the unitary structure. An apparatus including combs which bear such rods and a jig having a plurality of gen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.