Active controlled energy absorber using responsive fluids

Details Active controlled energy absorber using responsive fluids Active controlled energy absorber using responsive fluids

2011-03-01

2011-03-01

Rivell, John (Department: 3753)

Fluid handling

Processes

Affecting flow by the addition of material or energy

C188S267100, C188S322500

Reexamination Certificate

active

07896019

ABSTRACT:
An impact absorber employs dilatant (shear responsive) fluid that is subjected to a controlled, low amplitude, high frequency oscillatory stress which controls the stiffness of the fluid. Piezoelectric transducers, voice coils, and other forms of transducers may be used to apply controlled vibratory stress to the fluid. The energy absorber may be used in protective body armor, medical devices such as splints and casts, vehicle safety absorbers and many other products which benefit from ability to control the stiffness of the energy absorber.

REFERENCES:
patent: 2756016 (1956-07-01), Giles
patent: 4381491 (1983-04-01), Vogelgesang
patent: 6701529 (2004-03-01), Rhoades et al.
patent: 4213513 (1993-10-01), None

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