Energy dissipative device and method
AssigneeOlixir Technologies
InventorsShrikant Desai, Prabodh Shah, Daryl A. Cheim, Darshan P. Shah
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Abstract
An energy dissipative element protects hard disk drives from shocks and vibrations. A closed elastic envelope houses a body of open cell foam, a volume of viscous liquid, and a compressible gas. Under compression or expansion of the foam, viscous liquid flows through cell orifices and thereby dissipates energy resulting from external force applied against the elastic wall. The energy dissipative elements are applied between a disk drive housing and an outer case to create a ruggedized portable disk drive module.
Claims15
An energy dissipative element for use in protecting a hosted device from deleterious effects of mechanical shocks and vibrations, the energy dissipative element comprising:
- a closed envelope formed of an elastic, resilient wall and enclosing an internal volume;
- a porous body of elastic material contained within the internal volume of said closed envelope, wherein said body defines a network of cells interconnected through cell orifices suitably configured for passing viscous liquid between cells;
- and
- a viscous liquid contained within said envelope and filling at least a portion of said network of interconnected cells, wherein under compression or expansion of the porous body, said viscous liquid flows through said cell orifices and thereby dissipates energy resulting from an external force applied against said elastic wall;
- and
- a compressible gas occupying a portion of the internal volume of the envelope.
Dependencies are inferred from the claim text.