Impact Dispersal Device-US 7,472,935 B2
Variable Valve For Impact Dispersal Device-US 8,020,584 B2
Pressure Actuating Valve For Impact Dispersal Device-US 8,424,658 B2
Impact Dispersal System For A Child Safety Seat-US 9,061,611 B2
Background
A number of applications involve a shock or impact during normal use or emergency situations. A system is needed that reduces the energy transmitted to occupant or vehicle during these high energy events. Impact Dispersal Systems, LLC has developed a patented impact dispersion system that has shown dramatic reduction in transmitted acceleration levels.
Crash Energy Is Reduced Over Distance
THE SAME DISTANCE DOES NOT REDUCE THE SAME AMOUNT OF CRASH ENERGY, IT DEPENDS ON THE SYSTEM.
You can see in the MGA crash tests, the difference in the crash energy reduced in the test with the system than it did without the system, by the movement of the head of the dummy. According to the National Highway Traffic Safety Administration head injuries are the most common injuries sustained by children in motor vehicle crashes. (NHTSA)
In the truck offset crash test, the truck was going 23 mph. The system used 8½” of stroke on the right side and only 5½” on the left side, with almost no damage to the truck. Without the system there was major damage to the truck including warping of the frame. The IDS System offers protection without damaging the vehicle.
Performance
The Impact Dispersal System is a new invention that takes a novel approach to reducing force from impacts. Unlike other systems, the Impact Dispersal System does not absorb the force, but disperses it away from the point of impact. The system quickly reacts, dispersing the crash energy at the point of impact and then systematically shuts down according to the amount of crash energy produced by the impact . This feature is the unique characteristic of this invention. The system has no recoil which can be important in some applications. Impact Dispersal systems received a small business innovative research (SBIR) grant from the Air Force for crashworthy stowable troop seating for helicopter topic number AF081-003. In a proof of concept test conducted by PAR3 Technology for the Air Force, the system had an 86% reduction in transmitted acceleration levels in a 60 G impact test.
- In a 60 G impact test the system had an 86% reduction in transmitted acceleration levels
- Scalable system for occupant size
- Immediately activated at low-force levels reducing a high spike
How It Works
The system works by using variable dispersion. To give the most protection, the system would have to disperse more of the fluids at the point of impact than it does at the end of the dispersion. To accomplish this it would need different force levels, and different rates of dispersion for each level. If the force from the impact reaches the highest level, all the relief valves will open, and as the force reduces, the relief valves set at the higher level will shut down first. This would continue until all the valves shut down. After having success with the multiple valve system we thought it would be better to incorporate all these features into one valve. We designed, tested and patented a variable one piston valve that can replace the multiple valve system. We also have developed and patented a two piston valve for extreme high-energy impacts using less amount of stroke and a pressure actuating valve for the Impact Dispersal System.
Results
- Disperses more of the crash energy in a shorter distance than other systems can absorb
- Effectively responds to higher force levels and reduces it further than other systems
- Has the potential of producing lower acceleration levels more than ever before thought possible
Conclusions
- The test results suggest the Impact Dispersal System to be more effective than other alternatives at reducing transmitted acceleration levels
- The Impact Dispersal System offers a unique design option in a number of applications