The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2002
Filed:
May. 27, 1999
Emil M. Shtarkman, Marina Del Rey, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A composite structure element ( ) with built-in damping is formed with a non-metallic matrix ( ) reinforced by a plurality of filaments ( ) within the matrix. A lightweight metal ( ) having a specific damping capability of at least 1% is provided on at least one of the matrix and the filaments of the composite structure element for attenuating vibrations of the element. The lightweight metal is preferably a magnesium alloy or an aluminum alloy which is coated on the filaments ( ) and/or the pores ( ) of a porous matrix ( ). A metal structural member, such as a satellite antennae ( ), subject to disturbance when used for its intended purpose can also be provided with built-in damping by providing a lightweight metal ( ) having a specific damping capability of at least 1% on the structural member on the wire mesh ( ) of the deployable antennae for damping disturbances.