Research/Patents/US 5446458
US 5446458

PROCESS FOR THE FASTENING OF AN ELEMENT ABSORBING ELECTROMAGNETIC WAVES ON A WALL OF A STRUCTURE OR AN INFRASTRUCTURE

Assignee

SOCIETE NATIONALE DES POUDRES ET EXPLOSIFS

Filed

Dec 30, 1986

Granted

Aug 29, 1995

Location

GRIGNY FR

Abstract

The invention pertains to a process to fasten an intrinsic element absorbing electromagnetic waves onto a wall of a structure or infrastructure. The process of the invention consists of coating a surface of a wall of a structure by means of a syntactic foam with the rheologic properties of a mastic and being transparent to electromagnetic waves, then placing an element absorbing electromagnetic waves into or onto the syntactic foam coating, and letting the syntactic foam harden. The process can be used to place an element absorbing electromagnetic waves onto surfaces of any shape and in a simple manner without requiring special equipment.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Dec 6, 1989

Rescinded

Oct 4, 1993

Duration

3 years, 10 months

Inventor

  • 1JEAN-PIERRE CHAUMAT

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records