Energy absorption device for shock loading
US5393016A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Jun 30, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D17/36
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shock energy absorbing device provides shock protection for the riser l employed to attach an aerodynamic deceleration device to a primary body during deployment of the system into an airstream. During deployment, for example, by dropping an unopened parachute and attached load or by rocket delivery of the unopened parachute and attached load, the parachute is made to open at a desired altitude wherupon very large shock tension forces are generated which are applied to the line. In order to protect the line from failing under these forces and to reduce the requirement for a bulky, heavy line, a shock absorber is provided in the form of a block having one or more breakable web portions formed therein and through which the riser line is threaded. Upon deployment of the system into an airstream, the shock tension forces operate to fracture some or all of the breakable web portions thereby dissipating the shock energy generated during deployment and protecting the riser line from failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.