Process of forming a projectile by folding a resilient tubular member and filling same with payload
US4190476A · kind A · utility
Inventors
Key dates
| Filing date | Jan 12, 1976 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Jan 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1051
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process of making and filling an envelope shaped as a ring airfoil for use as a projectile. The envelope is formed of resilient material into a tubular shape with an outer wall portion and an inner wall portion located along the tubular extent thereof with a foldable portion therebetween. The walls are relatively moved to form a payload cavity by moving the inner wall to nest within the outer wall by folding at the foldable portion with the ends contiguous. The foldable portion forms the leading edge of the airfoil. The trailing edge is formed by joining the contiguous ends. Payload filling and final sealing steps complete the airfoil projectile shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.