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US 5,988,388 AGranted
Device and method for the protection of objects against impacts or other mechanical effects
AssigneesDassault Electronique, Musthane
InventorsBernard Sutra, Daniel Josien
Life of this patent
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Abstract
A mechanical filter includes a pouch with a double-walled envelope housing a shock-absorbing material in the form of a gel displaceable under pressure. The envelope, of selected geometry, is mainly formed of a thin film of synthetic thermoplastic material, whose physical properties are selected to prevent breakage during displacement of the gel.
Claims9
A mechanical filter for receiving an object and protecting the object from a shock, comprising:
- a continuous envelope housing a self-contained shock-absorbing material between a first internal wall intended to receive the object, and a second external opposing wall which receives the shock, wherein the shock-absorbing material is a gel which is continuous in the envelope and which displaces within the continuous envelope from a first area under pressure from the shock, which first area would be supporting the object, to a second area, the envelope including a thin film forming said first and second walls, having a high elastic lengthening property to prevent breakage when the gel displaces, and defining, in cooperation with a viscosity of the gel, a geometrical structure wherein the object should be received in the first area and, wherein, once the shock is received, the film and gel provide a spring effect, followed by a shock absorber effect.
A method for mechanically protecting an object from shock, comprising the steps of:
- forming a mechanical filter including a continuous envelope housing a self-contained shock-absorbing material which is a gel that displaces within the continuous envelope from a first area under pressure to a second area, the envelope including a thin film having a high elastic lengthening property;
- selecting the thin film to withstand breakage when the gel displaces;
- and
- assembling the thin film, in cooperation with a viscosity of the gel, to define a geometrical structure wherein said object should be received in the first area.
1 more element
Dependencies are inferred from the claim text.